Drilling Tools Catalog

Drilling Tools Catalog


Table of Contents

BHA Drilling ToolsBorrox AP Advanced Performance Sealed-Bearing Reamer

Model 60 and 62 Rotary Reamer

Shock Sub

Diamond-Enhanced Insert Reamer

Inline Reamer

Gauge-Indicator Sub

DOG Drilling On Gauge Sub

Diamond-Enhanced Insert Stabilizer

Double-Diamond Combo Tool

Integral Blade Stabilizer

Ezy-Change Type II Rig-Replaceable Sleeve-Type Stabilizer

Neyrfor Traditional

Neyrfor Delta

Neyrfor LC3 Turbodrill Locking Clutch

Drilling Impact ToolsAP Impact System

Jar-Pact Program

Data Acquisition Program

Hydra-Jar AP

Accelerator AP

HydraQuaker

Hydra-TT Double-Acting Hydraulic Jar

Accelerator-TT Double-Acting Accelerator Tool

Hydra-Stroke Bumper Sub

TMC Jar, Single-Acting Hydraulic Fishing Jar (Up Only)

TMC Accelerator, Single-Acting Fishing Accelerator (Up Only)

TMC Bumper Fishing Bumper Sub

Hex Fishing Bumper Sub

Borehole EnlargementBorehole Enlargement Introduction

Rhino XC Reamer

Rhino XS Reamer

Predator Cutter Blocks

Cement Cleanout Blocks

Rhino Stabilization System

Fixed-Diameter Hole Openers

Drilling-Type Underreamer

Reamaster-XTU Underreamer

Rock-Type Underreamer


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BHA Drilling Tools

Schlumberger BHA Drilling Tools1

The Borrox AP* advanced performance sealed-bearing reamer has the flexibility and durability to meet rigorous downhole demands. Hole gauge maintenance and torque reduction characteristics can be customized with the Borrox AP reamer.

To help operators take on different formation applications, the Borrox AP reamer works with three different cutter assemblies: KSX* high-strength TCI reamer cutters for soft to medium-hard formations; RSX* milled-profile torque-reduction reamer rollers for torque reduction applications, and DEX* diamond-enhanced insert reamer cutters for high abrasion and impact resistance, a hard formation profile. Cutter assemblies can be changed easily on the rig floor to accommodate a range of wellbore conditions.

Applications ■ Low packed hole assemblies ■ Medium to severely packed hole assemblies ■ Extremely abrasive drilling conditions

Benefits ■ Available in all common hole sizes ■ Reduce downhole torque caused by wellbore spiraling and doglegs ■ Maintains borehole quality ■ Maintains hole gauge in extreme conditions

Features ■ Blank ended manufacturing means the tool can be configured for

near bit and string placement in the BHA ■ High-flow body increases annular total flow area (TFA) to improve

hole cleaning ■ Longer full-gauge cutting section enhances gauge maintenance ■ Proprietary seal endures high loads, temperatures, and rotary speeds

to extend bearing life ■ Three cutter assemblies allow customization for different applications ■ Cutter assemblies changed safely and easily on rig floor ■ Optional real-time data connection for use with Schlumberger

LWD tools

Service and SupportOptimum placement in the BHA is essential in any reamer application. A Schlumberger representative should always be consulted on the placement of your Borrox AP reamer. Proprietary software can be used to analyze and predict the tendencies of a particular assembly to ensure drilling objectives are achieved. The Borrox AP reamer offers multiple cutting structure options, reliability, rig site serviceability, and the capability to maintain hole gauge in extreme conditions.

Borrox AP Advanced Performance Sealed-Bearing Reamer

Lower block

Shim (upper block only when required)

Cutter assemblyCap screws

KSX cutter RSX cutter DEX cutter

Borrox AP advanced performance sealed-bearing reamer

a

c

b

Borrox AP advanced performance sealed-bearing reamer

Schlumberger BHA Drilling Tools 2

Borrox AP Advanced Performance Sealed-Bearing Reamer

Borrox AP SpecificationsHole Size†, in Body Diameter,

in (a)Bore Diameter, in Cutter Size, in Tool Length, in

(b)Fishing Neck Length, in (c)

Fishing Neck Diameter, in

Estimated Body Weight, lbm

5.875 5.620 1.250 1.900 77.000 24.000 4.750 3496.000 5.620 1.250 2.000 77.000 25.000 4.750 3496.125 5.620 1.250 2.000 77.000 26.000 4.750 3496.250 5.620 1.250 2.000 77.000 27.000 4.750 3496.125 (large bore) 5.620 1.500 1.900 77.000 24.000 4.750 3416.250 (large bore) 5.620 1.500 1.900 77.000 24.000 4.750 3416.500 6.000 1.250 2.000 77.000 24.000 4.750 3767.875 7.400 2.250 2.370 87.000 29.000 6.500 6978.375 (6.5–in necks) 8.140 2.250 2.625 87.000 31.000 6.500 7828.500 (6.5–in necks) 8.140 2.250 2.625 87.000 31.000 6.500 7828.750 (6.5–in necks) 8.140 2.250 2.625 87.000 31.000 6.500 7828.375 (7–in necks) 8.140 2.250 2.625 87.000 31.000 7.000 8288.500 (7–in necks) 8.140 2.250 2.625 87.000 31.000 7.000 8288.750 (7–in necks) 8.140 2.250 2.625 87.000 31.000 7.000 8289.875 9.500 2.813 2.625 82.000 30.000 8.500 1,14210.625 10.250 2.813 2.625 87.000 31.000 8.250 1,24412.000 11.550 2.813 4.000 112.000 49.000 10.000 2,15312.250 (8–in necks) 11.800 2.813 4.000 112.000 49.000 8.000 1,47712.250 (10–in necks) 11.800 2.813 4.000 112.000 49.000 10.000 2,18114.250 12.855 3.000 4.000 112.000 43.000 10.000 2,36614.750 14.000 3.000 5.125 112.000 49.000 10.000 2,26716.000 (10–in necks) 14.000 3.000 5.125 112.000 49.000 10.000 2,40516.000 (11–in necks) 14.000 3.000 5.125 112.000 49.000 11.000 2,80516.375 13.764 3.000 5.125 112.000 43.000 10.000 2,41416.500 13.764 3.000 5.125 112.000 43.000 10.000 2,41417.000 14.313 3.000 5.125 112.000 43.000 10.000 2,49917.500 15.500 3.000 5.125 112.000 49.000 10.000 2,64918.125 15.415 3.000 5.125 112.000 43.000 10.000 2,67218.250 15.415 3.000 5.125 112.000 43.000 10.000 2,67222.000‡ 20.000 3.000 5.125 116.000 38.000 10.000 3,621

† Other sizes available upon request ‡ Four-point reamer

Borrox AP with Schlumberger Real-Time LWD Data Connection SpecificationsHole Size, in Body Diameter,

inBore Diameter, in Cutter Size, in Tool Length, in Fishing Neck

Length, inFishing Neck Diameter, in

Estimated Body Weight, lbm

8.500 with 5.50 FH Pins 8.000 3.400 2.000 61.000 8.500 6.875 47512.250 with 6.62 FH Pins 11.688 4.250 2.620 58.000 8.000 8.500 78112.250 with 7.62 H90 Pins 11.688 4.250 2.620 59.000 8.500 9.000 83317.500 with 7.62 H90 Pins 15.500 4.250 5.125 62.500 8.500 9.500 1,183



The Model 60 and 62 rotary reamers are true rolling reamers with optional cutting structures: The Type Q cutter delivers crushing action for reaming medium to hard formations, and the Knobby cutter is for grinding through hard formations.

The Model 60 is available in 41⁄8– to 33 7⁄8–in hole sizes. The Model 62 can be had in 61⁄2– to 83⁄4–in sizes, and offers a larger bore ID over that of the Model 60. Both models come in three- and six-point reamers for bottomhole and string placement.

Durable constructionLarge-diameter, carburized, and hardened pins serve as robust abrasion-resistant bearing sections. Cutters are retained using a simple design that is easily serviced by rig personnel using common hand tools.

Applications ■ Standard runs using milled tooth rock bits, drilling surface hole

sections and shallow wells ■ High temperature conditions ■ Medium to hard and hard formations

Benefits ■ Cost effective design for many applications ■ Flexible design enables many string placement options

Features ■ Large bearing area and open circulation (Model 60) enable high-

rotary speed ■ Large diameter, carburized, hardened pins compose abrasion-

resistant bearing sections ■ Non-sealed-bearing design is cost-effective for many applications ■ “Type Q” cutters’ hard-faced, carburized steel teeth deliver wear-

resistant reaming ■ “Knobby” cutters’ tungsten carbide inserts fracture rock

a

b

c

a

Three-point reamer Six-point reamer

Model 60 and 62 rotary reamer

c

b



Model 60 and 62 Rotary Reamer Specifications

Hole Size, in

Cutter Size, in

Bearing Pin Size, in

Bearing Blocks ID Size, in and Type

Reamer Bodies Complete (String or Bottom Hole)

Maximum Body Diameter, in (a)

Body Bore, in

Three-Point Reamer Six-Point Reamer(b) (c) Weight

with Cutters, lbm

(b) (c) Weight with Cutters, lbm

41⁄8 13⁄8 3⁄4 3⁄4 A 33⁄4 1 50 19 100 86 32 19045⁄8 11⁄2 7⁄8 7⁄8 A 41⁄4 1 50 19 130 86 32 25043⁄4 11⁄2 7⁄8 7⁄8 B 41⁄4 1 50 19 130 86 32 25055⁄8 2 1 1 A 5 1 64 25 230 105 32 45057⁄8 2 1 1 C 5 1 64 25 230 105 32 4506 2 1 1 A 51⁄2 11⁄4 64 25 260 105 32 51061⁄8 2 1 1 B 51⁄2 11⁄4 64 25 260 105 32 51061⁄4 2 1 1 C 51⁄2 11⁄4 64 25 260 105 32 51061⁄2 2 1 1 E 51⁄2 11⁄4 64 25 260 105 32 51075⁄8 25⁄8 13⁄8 13⁄8 A 7 15⁄8 79 33 474 121 35 96077⁄8 25⁄8 13⁄8 13⁄8 C 7 15⁄8 79 33 474 121 35 96083⁄8 25⁄8 13⁄8 13⁄8 A 73⁄4 17⁄8 80 34 575 122 36 1,16081⁄2 23⁄4 13⁄8 13⁄8 A 73⁄4 17⁄8 80 34 575 122 36 1,16085⁄8 23⁄4 13⁄8 13⁄8 B 73⁄4 17⁄8 80 34 575 122 36 1,16083⁄4 23⁄4 13⁄8 13⁄8 C 73⁄4 17⁄8 80 34 575 122 36 1,16091⁄2 31⁄8 13⁄4 13⁄4 A 83⁄4 21⁄4 90 39 785 135 37 1,60095⁄8 31⁄8 13⁄4 13⁄4 B 83⁄4 21⁄4 90 39 785 135 37 1,60097⁄8 31⁄8 13⁄4 13⁄4 D 83⁄4 21⁄4 90 39 785 135 37 1,600105⁄8 31⁄4 13⁄4 13⁄4 A 91⁄2 21⁄4 91 39 950 137 40 1,90011 31⁄4 13⁄4 13⁄4 D 91⁄2 21⁄4 91 39 950 137 40 1,90012 4 21⁄4 21⁄4 C 101⁄2 213⁄16 112 501⁄2 1,088 155 451⁄2 2,230121⁄4 4 21⁄4 21⁄4 E 101⁄2 213⁄16 112 501⁄2 1,088 155 451⁄2 2,230133⁄4 4 21⁄4 21⁄4 E 113⁄4 213⁄16 112 501⁄2 1,445 155 431⁄2 2,600143⁄4 51⁄2 21⁄2 21⁄2 A 123⁄4 213⁄16 112 49 1,705 155 431⁄2 2,60015 51⁄2 21⁄2 21⁄2 C 123⁄4 213⁄16 112 49 1,705 155 431⁄2 2,600171⁄2 51⁄2 21⁄2 21⁄2 E 15 3 112 47 2,400 164 45 5,100181⁄2 51⁄2 21⁄2 21⁄2 A 163⁄8 3 112 47 2,650 164 45 5,10020 51⁄2 21⁄2 21⁄2 M 163⁄8 3 112 47 2,650 164 45 5,10024 7 3 3 A 22 3 122 50 3,900 164 45 5,10026 7 3 3 C 22 3 122 50 3,900 164 45 5,100337⁄8† 7 3 3 C 30 3 130 42 8,900 164 45 5,100† Model 60 33 7⁄8–in tool available in four-cutter configuration only.

Ordering instructions, please specify: • Three-point or six-point • Bottomhole or string reamer • Hole size • Drill collar OD • Type of cutters to be installed in the reamer • Size, type and location of the connection • Cast- or pressed-steel thread protectors


The Shock Sub* impact and vibration reduction sub is a drillstring component that absorbs and dampens the variable-axial dynamic loads produced by the drill bit during “normal” drilling operations. Left unchecked, a roller cone bit produces a pattern of “peaks and valleys” on the bottom of the borehole as it rotates. With each revolution of the bit, the cones will tend to follow this sinusoidal contour producing a cyclical oscillation of the drillstring.

The Shock Sub interrupts this harmonic cycle by using a bidirectional-spring action enabling it to automatically adjust to a wide range of values for weight on bit (WOB). As axial loads are produced, energy is absorbed through the use of its Belleville spring assembly while force dampening is accomplished by mechanical friction.

Applications ■ Drilling competent sediments in straight holes with roller cone or

hammer bits ■ Directional drilling: hard formations, horizontal sections, directionally

drilled crossings ■ Milling operations: sections, windows, casing ■ Underreaming and hole opening ■ Coiled tubing drilling operations

Shock Sub

Shock Sub SpecificationsOverall Diameter, in [mm]

Internal Diameter, in [mm]

Tool Joint Connection, in

Tensile Yield, lbf [N]

Torsional Yield, lbf.ft [N.m]

Approximate Weight, lbm [kg]

Length, ft [m]

4.75 [121]

1.75 [44]

31⁄2 IF 415,000 [1,846,000]

17,500 [23,700]

600 [270]

11.5 [3.50]

5.0 [127]

1.75 [44]

XT39 589,000 [2,620,000]

31,000 [42,000]

800 [360]

11.5 [3.50]

6.5 [165]

2.25 [57]

41⁄2 IF 41⁄2 XH

800,000 [3,559,000]

57,000 [77,200]

1,300 [590]

12.0 [3.68]

8.0 [203]

3.00 [76]

65⁄8 Reg 1,100,000 [4,893,000]

84,000 [113,900]

1,800 [817]

13.5 [4.12]

9.5 [241]

3.00 [76]

75⁄8 Reg 1,800,000 [8,006,000]

150,000 [203,300]

2,700 [1,225]

13.5 [4.12]

12.0 [305]

3.25 [83]

75⁄8 H90 2,300,000 [10,230,000]

250,000 [339,000]

4,500 [2,041]

13.8 [4.21]

14.0 [356]

3.25 [83]

85⁄8 H90 2,300,000 [10,230,000]

400,000 [542,300]

6,200 [2,812]

14.3 [4.36]

Benefits ■ Increased ROP ■ Longer life for the cutting structure and bearings because of reduced

impact loads ■ Extended connection life ■ Reduced shock loads on surface equipment ■ Lower drilling cost per foot

Features ■ High-quality, hardened-steel tool body for durability ■ Rotary shoulder connections incorporate API stress-relief groove

and bore-back box ■ Seals endure temperatures up to 450 degF ■ Compression/extension spring action counters axial loads, maintains

near constant WOB ■ Belleville spring stack engineered for optimal WOB ■ Spring rate adjustable to meet application-specific requirements ■ Seals isolate internal components from drilling fluid ■ Tool needs no activation

Shock Sub


The diamond-enhanced insert (DEI) reamer delivers effective hole reaming across a broad range of applications. Its advanced integral body design incorporates tough, state-of-the-art synthetic DEIs that shear the hole wall, providing a quality, full-gauge wellbore in soft to medium-hard formations.

Flexible designEach insert is securely brazed into the tool body, so there are no moving parts to wear or fail. Consequently, the tool is not affected by hot hole conditions. It can be placed at any point in the BHA. The tapered body profile enables reaming both downward and upward.

Improved circulation ratesThe dual spiral and tapered design facilitates high circulation rates and the efficient transport of cuttings past the tool. The larger circulation area can be an advantage when annular restriction is a concern.

Applications ■ Removing ledges and opens under-gauge portions of build sections

for directional work ■ Removing keyseats ■ High-temperature reaming

Benefits ■ Produces high-quality full-gauge wellbores ■ Allows greater circulation

Features ■ No moving or sealed components guards against downhole failures

due to heat or other severe downhole conditions ■ Assembling flexibility enables placement in BHA at any point ■ Synthetic, diamond-enhanced inserts compose durable cutting

structure capable of maintaining full-gauge hole in soft to medium-hard formations

■ Spiral body facilitates high-circulation rates and efficient evacuation of cuttings

■ Tapered body profile enables reaming downward and upward

Diamond-Enhanced Insert Reamer

Riblength

Diamond-Enhanced Insert Reamer SpecificationsHole Size, in Rib Length, in Bore Diameter, in Neck Diameter, in Tool Length, in Approximate Weight, lbm6 18 2 43⁄4 60 26577⁄8 22 21⁄4 61⁄4 64 53081⁄2 22 21⁄4 63⁄4 64 63583⁄4 22 21⁄4 63⁄4 64 65597⁄8 22 213⁄16 7 66 755121⁄4 231⁄2 3 8 72 1,190Additional sizes available upon request. Available in non-magnetic material by special order only.

Ordering instructions, please specify: • Hole size • Drill collar or fish neck diameter • Bore ID • Size, type and location of connections

Toollength

Diamond-enhanced insert reamer


Inline Reamer

The inline reamer’s four blades and robust cutter elements clean and clear horizontal wellbores for shale applications, eliminating costly wiper trips. Its innovative carbide-button gauge design reduces rotating torque and drag on the drillstring. In highly abrasive formations, the gauge pad can be designed with PDC buttons for enhanced abrasion resistance.

The inline reamer stabilizer is typically run in pairs within the drillstring and positioned above the MWD drill collar. Configured from top down it includes a stabilizer, a joint of Hevi-Wate* transition drillpipe, and a second stabilizer.

Applications ■ Cleaning cuttings from shale-dominated wellbores ■ Clearing cutting beds from horizontal shale wells ■ Eliminating ledges in horizontal shale wells

Benefits ■ Eliminates the costs associated with dedicated wiper trips

Features ■ Open or wrap tool design available for flow-by flexibility ■ Four blades for reaming efficiency ■ PDC buttons on taper effectively cleans borehole ■ Standard carbide buttons on gauge pad reduce rotating torque and

drag; mixed cutter type (PDC or carbide) available on gauge pad

Inline reamer

Inline Reamer SpecificationsOD, in [mm] 4.75 [120.7]Minimum ID, in [mm] 2.6875 [68.3]Gauge OD, in [mm] 5.875 [149.2]Fishing neck OD, in [mm] 4.75 [120.7]Fishing neck length, in [mm] 18–24 [457.2–609.6]Cutter type PDC on taperGauge pad buttons Carbide or PDCOverall length, in [mm] 60–66 [1524–1676.4]Number of blades 4Up connections 3 ½ IFDown connections 3 ½ IF


The gauge indicator sub generates an increase in torque when the drill bit wears below nominal gauge specification. This cost-effective capability enables the driller to detect drillbit gauge wear by a torque increase as the indicator sub’s wear-resistant blades make contact with the hole wall, reducing reaming time and maximizing ROP. A short, efficient body design enables the sub to be made up between the drill bit and drilling mud motor or rotary steerable system. The gauge indicator sub is available in a broad range of sizes.

Applications ■ Directional or straight hole, motor or rotary, steerable applications

where monitoring drillbit wear is necessary to prevent under-gauge holes

Benefits ■ Reduces reaming time ■ Extends bit life

Features ■ Configuration extends bit life by centering bit in wellbore ■ Cutting design delivers a smoother, high-quality wellbore ■ Short design facilitates placement at the bit, regardless of

directional system ■ Type 300 hardfacing ensures long life in abrasive environments

Gauge Indicator Sub

Gauge indicator sub


Unless otherwise requested, nominal gauge diameter for this product is OD +0 in, -1⁄32 in

The DOG* drilling on gauge sub has been specifically designed to deliver at-the-bit reaming. Its short body design and durable cutting structure enables placement between the bit and motor for directional applications. This results in a smoother build section and reduction in hole drag allowing for better weight transfer to the drill bit. The cutting structure is comprised of synthetic diamond-enhanced inserts, which gives the DOG sub its continuous reaming capability. Each insert is brazed into the body, eliminating moving parts found in conventional reamers.

Applications ■ Directional projects where maintaining hole gauge is problematic ■ Directional wells where doglegs demand reaming runs through

build sections ■ Near-bit reaming in packed-hole assemblies, sub is first point of

stabilization for BHA

DOG Drilling On Gauge Sub

Shoulder to

shoulderlength

DOG drilling on gauge sub

DOG Drilling On Gauge Sub SpecificationsHole Size, in Connection Size

and TypeBore Diameter, in

Shoulder to Shoulder Length, in

Rib Length, in

Weight, lbm

43⁄4 27⁄8 Reg 11⁄4 61⁄2 57⁄8 3957⁄8 31⁄2 Reg 11⁄4 73⁄8 67⁄16 516 31⁄2 Reg 11⁄4 73⁄8 63⁄8 5461⁄8 31⁄2 Reg 11⁄4 71⁄2 67⁄16 5761⁄4 31⁄2 Reg 11⁄4 71⁄2 67⁄16 6161⁄2 31⁄2 Reg 11⁄4 77⁄8 65⁄8 6663⁄4 31⁄2 Reg 11⁄4 81⁄8 65⁄8 7173⁄8 41⁄2 Reg 21⁄4 81⁄4 65⁄8 6471⁄2 41⁄2 Reg 21⁄4 73⁄8 63⁄8 7977⁄8 41⁄2 Reg 21⁄4 8 65⁄8 8881⁄4 41⁄2 Reg 21⁄4 83⁄8 67⁄8 9583⁄8 41⁄2 Reg 21⁄4 83⁄8 71⁄8 10287⁄16 41⁄2 Reg 21⁄4 83⁄8 7 10781⁄2 41⁄2 Reg 21⁄4 83⁄8 7 11183⁄4 41⁄2 Reg 21⁄4 89⁄13 71⁄4 1159 41⁄2 Reg 21⁄4 91⁄2 67⁄8 11091⁄2 65⁄8 Reg 3 85⁄8 77⁄8 11297⁄8 65⁄8 Reg 3 91⁄8 73⁄4 159105⁄8 65⁄8 Reg 3 97⁄8 81⁄8 18111 65⁄8 Reg 3 103⁄8 83⁄8 187115⁄8 65⁄8 Reg 3 101⁄2 87⁄8 174121⁄8 65⁄8 Reg 3 111⁄2 7 214121⁄4 65⁄8 Reg 3 113⁄8 9 206143⁄4 75⁄8 Reg 33⁄8 217⁄8 93⁄4 563151⁄2 75⁄8 Reg 33⁄8 221⁄4 71⁄4 52316 75⁄8 Reg 33⁄8 225⁄8 101⁄8 578171⁄2 75⁄8 Reg 3 241⁄8 105⁄8 70620 75⁄8 Reg 3 263⁄4 83⁄5 98022 75⁄8 Reg 3 287⁄8 9 1,122

Benefits ■ Can be placed between bit and mud motor for directional

applications ■ Provides reaming and contact behind bit, wiping out ledges as

drilling progresses ■ Stabilizes BHA assembly ■ Increases drilling performance

Features ■ Maintains hole size when drill bit loses gauge, reduces, or eliminates

need to ream back to bottom with directional assembly ■ Synthetic diamond-enhanced inserts comprise durable cutting

structure, maintain full-gauge hole in soft to medium-hard formations ■ No moving parts to wear or fail ensures reliability ■ Short body facilitates reaming directly at bit

Rib length


The diamond-enhanced insert (DEI) stabilizer is purpose-built to stabilize the BHA in hard or abrasive formations. Synthetic DEI technology combines with proven Type 300 hardfacing for maximum stability and abrasion resistance. The strategically placed inserts ream ahead of the stabilizer blades, maintaining a full gauge and extending service life. The DEI stabilizer is made for packed hole, directional, and pendulum bottomhole assemblies.

Applications ■ BHA stabilization for hard or abrasive formations ■ Increases drilling performance of packed hole, directional and

pendulum bottomhole assemblies

Benefits ■ Dependable reaming in hard or abrasive formations ■ Maintains full-gauge borehole

Features ■ DEI inserts maintain hole gauge, extend stabilizer life and improve

BHA performance ■ Insert profile reduces drillstring torque and drag

Diamond-Enhanced Insert Stabilizer

DEI stabilizer

Blade length

Diamond-Enhanced Insert Stabilizer SpecificationsHole Size, in Overall Length,

inNeck Overall Diameter, in

Top Neck Length, in

Bottom Neck Length, in

Blade Length, in (a)

Blade Length, in (b)

83⁄8 75 61⁄2 30 24 16 681⁄2 75 61⁄2 30 24 16 6105⁄8 77 8 30 24 16 6121⁄4 81 8 30 24 16 6121⁄4 81 91⁄2 30 24 16 6

a

b

Tool length


Other types of hard metal wear surfaces available upon request. Nominal rib diameter +0 in, -1⁄32 in.

Ordering instructions, please specify: • Hole size • Drill collar OD • Size and type of connection • Cast- or pressed-steel thread protectors

The double-diamond combo tool is manufactured from high-strength alloy steel as a one-piece tool. It is an extremely effective bottomhole stabilizer where severe crooked hole tendencies are encountered.

High-quality boreholeThe unitized construction features two sets of three-blade spiraled ribs designed to reduce damage to the hole wall and ensure maximum fluid circulation. Optimally spaced diamond-enhanced inserts (DEIs) provide the reaming action necessary to keep the hole in gauge.

Rugged constructionThe inserts are brazed into the tool body, ensuring dependable service and complete repairability. Type 300 hardfacing provides optimum wear resistance and stabilizer blade life.

Improved ROPThe increased hole wall contact area allows more drilling weight to be applied, thus improving penetration rates while staying within acceptable deviation limits.

Applications ■ Drilling crooked holes that call for packed-

hole assemblies ■ Maintaining the tangent section of a well

during directional drilling

Double-Diamond Combo Tool

Blade length

Double-diamond combo tool

DEI placement

Double-Diamond Combo Tool SpecificationsHole Size, in Blade Length, in Bore Diameter, in Neck Diameter, in Tool Length, in Approximate Weight, lbm77⁄8 12 21⁄4 61⁄4 65 90081⁄2 12 21⁄4 63⁄4 65 98083⁄4 12 213⁄16 63⁄4 65 990121⁄4 18 3 91⁄2 76 2,000

Tool length

Benefits ■ Serves as first point of hole wall

contact directly at bit, greatly improves BHA efficiency

■ Stabilizes BHA in holes with severe crooked-hole tendencies

■ Reduces hole-wall damage, ensures maximum circulation

■ Endures high drilling weight

Features ■ Manufactured from high-strength alloy steel

as a one-piece tool for reliability ■ Diamond-enhanced inserts deliver reaming

action to keep hole in gauge ■ Optimized insert spacing for enhanced

performance ■ Inserts brazed into tool body ensures

durability ■ Type 300 hardfacing provides optimum wear

resistance and stabilizer blade life ■ Tong area between stabilizers enables

bottom stabilizer blades to cover box connection


The Integral Blade Stabilizer dampens lateral vibrations acting on the BHA. It also stiffens the BHA in a packed assembly to build an angle, drop an angle, or both in a pendulum assembly. It is a single-piece tool made from high-strength alloy steel.

Maintain hole qualityThe unitized construction features three spiraled ribs, designed to minimize downhole torque, reduce damage to the hole wall, and ensure maximum fluid circulation.

Wide range of applicationsThe IBS is well-suited for use in most formations, from soft and sticky to hard and abrasive. Type 200 and Type 300 wear surfaces are available. The tool can be supplied in both “open” and “full-wrap” designs for optimum hole wall contact. In addition, it is available in both bottomhole and string designs, providing the flexibility to run it anywhere in the BHA.

One-piece constructionThe integral blades and tool body eliminate the risk of leaving components or pieces in the hole.

Integral Blade Stabilizer

Integral Blade Stabilizer SpecificationsHole Size Range, in Drill Collar Overall Diameter Range, in Bore, in Overall Length, in (a) Blade Length, in (b)43⁄4 33⁄4 11⁄2 62 1057⁄8 43⁄4 13⁄4 62 1063⁄4 51⁄2 21⁄4 64 1277⁄8 61⁄2 213⁄16 64 1281⁄2–83⁄4 63⁄4–7 213⁄16 65 1391⁄4–97⁄8 71⁄4–81⁄4 213⁄16 66 13105⁄8 81⁄4 213⁄16 66 1312–121⁄4 81⁄4–91⁄2 3 72 15171⁄2 10 3 76 1524 10 3 91 2028 10 3 95 20

Nominal rib diameter as follows: • 4¾–12¼ in + 0, -1⁄32 in • 13¾–17 ½ in + 0, -1⁄16 in • 18–28 in +0, -1⁄8 in Non-standard tolerances are available upon request.

Ordering instructions, please specify: • Hole size • Drill collar or fish neck diameter • Bore ID • Size, type and location of connections • String or bottomhole stabilizers • Dressed with Type 300 Hardfacing or Type 200 TCI inserts • Cast- or pressed-steel thread protectors

Applications ■ Packed-hole assemblies that require the

placement of multiple stabilizers throughout the three zones of stabilization

■ Pendulum assemblies ■ Applications requiring the placement of

stabilizers in the BHA and upper drill-collar string to reduce vibration in drill collars

Benefits ■ Works in most formations ■ Available in bottomhole and string design,

runs anywhere in BHA ■ Prevents wall damage while ensuring

maximum circulation

Features ■ Integral blades and tool body, eliminating

the risk of leaving components or pieces in the hole

■ Available in both open- and full-wrap designs, providing optimum hole wall contact while ensuring maximum fluid bypass area

■ Available in Type 200 and Type 300 wear surfaces Integral Blade Stabilizer with Type 300 wear surface

ab


The Ezy-Change* type II stabilizer is designed around a rugged, one-piece mandrel constructed of high-strength alloy steel, with ample tong space for handling ease and extra length for recutting connections. The rig-replaceable, integral blade sleeves are available in two different hardfacing options or with tungsten carbide inserts (TCIs).

Versatile and space-savingThe Ezy-Change stabilizer is a popular choice for remote areas or where storage problems exist. One mandrel series can be used for several different hole sizes, reducing the need for a large mandrel inventory on location. The sleeves are easily changed on the rig floor, either when changing hole size or when the sleeves have worn under gauge. This versatility also allows a convenient way to change the type of stabilizer wear surface to match drilling conditions.

Applications ■ Mild to medium packed hole assemblies ■ Pendulum assemblies ■ Directional drilling assemblies ■ Harmonic vibration control

Benefits ■ Reduces the need to maintain large mandrel inventory on location ■ Small footprint enables placement in remote or space-

constrained locations

Features ■ Sleeves 171⁄2 in and smaller feature three spiral blades, four straight

blades for larger sizes ■ Large flow-by area for maximum flow ■ Multiple hardfacing options ■ Robust one-piece mandrel design ■ Ample length for multiple re-cuts


Sleeve dressed with Type 300 hardfacing

Bottom neck diameter

Fishing neck

length

Drill collar diameter

Upset diameter

Sleeve dressed with Type 200 tungsten carbide inserts

Sleeve dressed with Type W hardfacing

Nominal overall length

Ezy-Change type II rig-replaceable sleeve-type stabilizer


Notes: • Non-standard length mandrels and tolerances available upon request • Bottomhole tools are provided with bit box connection • Thread roots are cold worked (except bit box) and phosphate coated • Standard bore is 213⁄16 in, other diameters are available upon request • Sleeves can be ordered in all standard hole sizes between 81⁄2 in and 28 in • Nominal rib diameter as follows: • 81⁄2–12 1⁄4 in + 0, -1⁄32 in • 14 3⁄4–171⁄2 in + 0, -1⁄16 in • 22–28 in + 0, -1⁄8 in

Ordering instructions, please specify: • Series number • Drill collar or fishing neck diameter • Bore (if other than standard) • Connections • String or bottomhole • Desired blade dressing: Type 300, Type 200 or Type W

Sleeve SpecificationsHole Size, in Tool Series Drill Collar Size

Range, inLength, in Body Diameter,

inBlade Length, in Weight, lbm Recommended Makeup

Torque, lbm.ft

81⁄262 61⁄4–63⁄4 14 71⁄2 12 70 4,500–5,50065 61⁄2–71⁄4 14 71⁄2 12 80 3,500–4,500

83⁄462 61⁄4–63⁄4 14 71⁄2 12 75 4,500–5,50065 61⁄2–71⁄4 14 71⁄2 12 85 3,500–4,500

97⁄862 61⁄4–63⁄4 14 73⁄4 11 85 4,500–5,50065 61⁄2–71⁄4 14 73⁄4 11 95 3,500–4,500

121⁄477 73⁄4–81⁄4 14 91⁄4 11 140 7,000–8,00085 81⁄2–9 14 10 11 130 9,000–10,00096 9–10 14 11 11 110 10,000–12,000

143⁄477 73⁄4–81⁄4 18 11 14 330 7,000–8,00085 81⁄2–9 18 11 14 300 9,000–10,00096 9–10 18 11 14 270 10,000–12,000

171⁄277 73⁄4–81⁄4 18 11 12 370 7,000–8,00085 81⁄2–9 18 11 12 340 9,000–10,00096 9–10 18 11 12 310 10,000–12,000

22 96 9–10 22 12 12 1,780 10,000–12,00024 96 9–10 32 12 16 2,050 10,000–12,00026 96 9–10 32 12 16 2,110 10,000–12,00028 96 9–10 32 12 16 2,190 10,000–12,000


Mandrel SpecificationsTool Series

Sleeve Hole Size Range, in

Drill Collar (Fishing Neck) Diameter, in

Upset Diameter, in

Bottom Neck Diameter, in

Overall Length, in

Fishing Neck Length Weight, lbm

String (Box Up), in Bottom Hole (Pin Up), in62 81⁄2–97⁄8 61⁄4–63⁄4 71⁄2 61⁄4 65 27 22 47565 81/2–97⁄8 61⁄2–71⁄4 73⁄4 61⁄2 65 27 22 57577 121⁄4–171⁄2 73⁄4–81⁄4 91⁄4 73⁄4 66 27 22 80085 121⁄4–171⁄2 81⁄2–9 97⁄8 81⁄2 66 27 22 1,00096 143⁄4–20 91⁄2–10 11 95⁄8 66 27 22 1,20096 22–28 91⁄2–10 11 95⁄8 90 27 22 1,780


Neyrfor Traditional

Neyrfor Traditional* standard turbodrill’s innovative design incorporates stabilizers and straight- or bent-bearing sections for directional-steerable applications, vertical performance, and rotary drilling. The turbodrill’s design allows the driveshaft to rotate at a higher rpm while remaining dynamically stable, which produces unsurpassed ROP without the negative effects of excess torque.

Power and Bearing SectionThe Neyrfor Traditional turbodrill is based on a concentric design with a fluid connect rotor and stator-power drive system. These two components are offered in different configurations to produce a range of power characteristics enabling turbodrills to be designed for specific applications, and an all metallic option is available for HPHT conditions. Extended- and high-flow power sections are available in standard tool sizes and configurations. Additionally, a diamond-bearing pack design reduces vibration and noise, which can interfere with downhole measurement tools.

With an unmatched capability to convert hydraulic energy from the mud column to mechanical energy at the bit, the Neyrfor Traditional turbodrill drive system delivers greater mechanical drilling power than any other system under equal hydraulic conditions.

The Neyrfor Traditional turbodrill had set the benchmark for downhole drive system reliability: run times of up to 800 hours have minimized NPT caused by downhole tool failures and problems related to HPHT applications.

Applications ■ Directional drilling ■ High-pressure, high-temperature

(HPHT) drilling ■ Straight-hole drilling ■ Geothermal drilling ■ Underbalanced drilling ■ Single- or two-phase fluids

Benefits ■ High-power performance ■ Mitigates vibration ■ High-temp capabilities, 260 degC ■ Produces excellent borehole quality ■ Consistent and predictable tool face control ■ Unsurpassed reliability and operating life ■ Reduces NPT

Features ■ Rig-adjustable or fixed-bent housing section ■ Rig interchangeable stabilizers ■ Concentric-balanced design ■ Fluid-connect drive system

Components ■ Power section ■ Rig-interchangeable stabilizers ■ Pin down straight- or steerable-

bearing section

Available Tool Sizes ■ 27⁄8 in ■ 33⁄8 in ■ 43⁄4 in ■ 65⁄8 in ■ 71⁄4 in ■ 91⁄2 in

Interchangeable mid-body stabilizer

Adjustable bent housing

Rotor and stator blades

Interchangeable lower-body stabilizer

PDC thrust bearings

Flexible titanium shaft

Neyrfor turbodrill


Neyrfor Delta* high-performance directional turbodrill is specifically designed to meet demanding directional and precision horizontal drilling applications. This high-performance turbodrill has the shortest bit to bend in its class, which enables shorter radius-curve drilling. This capability decreases the course corrections that are common to horizontal and tangent section drilling while increasing ROP.

The Neyrfor Delta turbodrill’s stabilizers enhance weight transfer to the bit enabling the turbodrill to maximize borehole cleaning and minimize wellbore rugosity. Both conditions promote wellbore evaluation, casing running, cementing, and minimize problems associated with drilling ahead.

Neyrfor Delta turbodrill BHAs run with a proprietary stabilizer placement and optimization software package, which maximize performance and directional predictability while minimizing NPT caused by downhole tool failures and problems related to HPHT applications. Consistent predictable tool face control and increased dogleg capabilities make the Neyrfor Delta high-performance directional turbodrill ideal for directional applications and sidetracking cement plugs and whipstocks.

The Neyrfor standard turbodrill is based on a concentric design with a fluid connect rotor and stator-power drive system. These two components are offered in different configurations to produce a range of power characteristics enabling turbodrills to be

Neyrfor Delta

designed for specific applications. An all metallic option is available for HPHT conditions. Extended- and high-flow power sections are available in standard tool sizes and configurations. Additionally, a diamond-bearing pack design reduces vibration and noise, which can interfere with downhole measurement tools.

Applications ■ Directionally drills curved, horizontal, and

tangent applications ■ High-pressure, high-temperature (HPHT)

directional drilling ■ Cement and whipstock sidetracks ■ PDC and diamond- impregnated

bit applications

Benefits ■ Unsurpassed reliability and operating life ■ Reduces slide time 50% ■ Increases dogleg capabilities 60% ■ Reduces NPT ■ High-temperature capabilities, 260 degC ■ Produces excellent borehole quality ■ Consistent and predictable tool face control

Features ■ Shortest bit to bend in class ■ Proprietary engineered stabilizer placement

and profile software ■ Concentric-balanced design ■ Fluid-connect drive system

Components ■ Power section ■ Engineered Neyrfor Delta Series

directional stabilizers ■ Pin down steerable-bearing section ■ Power and Bearing Section

Available Tool Sizes ■ 43⁄4 in ■ 65⁄8 in ■ 91⁄2 in

Neyrfor Traditional

Neyrfor Delta stabilizers offer greater flow-by area and less surface contact area than standard turbodrill stabilizers.

Neyrfor Delta Neyrfor Traditional Neyrfor Delta


The Neyrfor LC3* turbodrill locking clutch system was specifically designed for drilling and reaming environments that induce bit sticking. When added to a Neyrfor Traditional* standard turbodrill or Neyrfor Delta* high-performance directional turbodrill configuration, it can help free a stuck bit. The clutch engages when the turbodrill drive shaft stops or the rpm is below that of the rotary string speed. Because the drillstring, turbodrill housing, and output drive shaft are linked together by the locking clutch, operators can apply torque from the top drive or rotary table directly to the bit by engaging the LC3 locking clutch system. Once the bit is freed, the clutch disengages and normal drilling operations can be resumed.

Bit type and directional well applications are evaluated on a per-well basis.

LC3 performance improvements ■ Material changes—1,400% more resistant

to stress damage ■ Design modification—28% more drilling

durability ■ Optimized placement to be run with Neyrfor

or Delta turbodrills

Applications ■ Fractured or faulted formations ■ Drilling in applications that induce

bit sticking

Benefits ■ Reduces need for fishing and sidetracking

operations ■ Improves directional drilling reliability ■ Increases drilling time ■ Lowers NPT

Features ■ Drive shaft locks to housing, so torque can

be applied directly to bit from the surface ■ Instant engagement allows bit to keep

drilling, reducing risk of becoming stuck if turbine stalls

Neyrfor LC3 Turbodrill Locking Clutch

In this cutaway view of the locking clutch system, the pawl is disengaged: its position during drilling.

Locking clutch pawl

Housing

Drilling Impact Tools

Schlumberger Drilling Impact Tools18

AP Impact System

The complex and expensive drilling assemblies used in today’s technologically advanced drilling operations represent a greater investment than ever before. As a result, lost-in-hole (LIH) incidents can cost operators hundreds of thousands of dollars related to lost equipment, its recovery, plugging back, and drilling around a LIH drillstring. The Schlumberger AP Impact* advanced performance downhole impact system can help protect operators from these costly setbacks by greatly reducing the risk of losing downhole drilling equipment, such as rotary steerable, MWD, and LWD systems.

The AP Impact system includes: ■ Hydra-Jar AP Tool ■ Accelerator AP Tool ■ Jar-Pact Analysis Program ■ Data Acquisition Program

Applications ■ For differential sticking, hole sloughing, or other potential

stuck-in-hole problems ■ Casing swaging operations requiring impact for successful completion ■ Fishing operations requiring significant down-hitting impact or

alternating up-and-down jarring force ■ When using downhole tools such as directional, and

MWD/LWD equipment

Hydra-Jar APRecognized as the industry’s premier impact tool, the Hydra-Jar AP* double-acting hydraulic drilling jar offers drillers matchless operational flexibility. The driller controls the direction, intensity, and frequency of the downhole impacts. And, since the system works without applied torque, the orientation of directional-drilling tools is maintained throughout the jarring operation. The tool also offers the driller an important option: to jar up, or down, with a force ranging from a light blow to an extra-heavy impact.

Accelerator AP toolThe Accelerator AP* impact tool augments the Hydra-Jar AP’s capability by providing additional stretch in the drillstring. In this way, it answers challenges such as hole drag, or if the drillstring is not heavy or long enough. By increasing the velocity of the mass applied to the jar, the Accelerator AP ensures optimum impact force from the Hydra-Jar AP.

Jar-Pact Analysis ProgramThe Jar-Pact* impact tool BHA placement software analysis program includes proprietary software that enables Schlumberger engineers to model the placement and performance of the AP Impact system. This ensures that the Hydra-Jar AP and Accelerator AP will deliver superior, real-world performance for the customer’s specific application. Using information from the operator’s well plan, including wellbore and BHA parameters, the Jar-Pact analysis program determines the optimum placement for impact tools.

Data Acquisition ProgramThe data acquisition program is a service check to ensure that every Hydra-Jar AP is tested by Schlumberger prior to being sent to the rig. The testing process uses pressure transducers to measure tool function and verify that it is performing to specification. Note: Jar-Pact Program should be utilized to optimize performance of Accelerator AP and Hydra-Jar AP Tools. Contact Schlumberger for more information.

Ordering instructions, please specify: • Hole size • Drillstring component OD where jar will be used • Connection size and type

Schlumberger Drilling Impact Tools 19

Jar-Pact Program and Data Acquisition Program

Jar-Pact ProgramThe Jar-Pact impact tool BHA placement software allows our engineers to model the placement and performance of the AP Impact system to ensure that the Hydra-Jar AP double-acting hydraulic drilling jar and the Accelerator AP impact tool will deliver superior performance in your specific application.

Optimum placement of jar in the BHAUsing information from the operator’s well plan—including borehole and BHA parameters—the software recommends the optimum placement for the tools. This is a critical requirement in order to avoid locating the tools in or near the drillstring neutral point or transition zones. The Jar-Pact software also ensures that the ratio of the hole size to the size of the tools is within recommended guidelines.

Data Acquisition ProgramThe Data Acquisition Program ensures that all AP Impact tools are tested to specification before being sent to a wellsite. The system uses two pressure transducers to perform both a push and a pull test for both short and full detent. A laser rangefinder device is used to measure stroke length. The results, which include the test readings, tool serial number, date and time, are entered in a reference database and can be viewed as raw data or in a graphical format.

Benefits ■ Records push/pull, time, and stroke length test data ■ Displays real-time graph and timer ■ Generates electronic tool test report ■ Archives test data ■ Provides verification data for critical jar parameters ■ Archives or transfers data easily ■ Eliminates human error ■ Provides data clarity

Jar-Pact program

Data acquisition transducers


The Hydra-Jar AP double-acting hydraulic drilling jar is used to amplify the force applied at surface in order to free stuck drillstem components during drilling or workover operations. The direction of jarring can be both up and down. The jar uses a unique temperature-compensation process to provide consistent impact, blow after blow, and high-temperature seals that make it the best choice for hostile drilling conditions.

In most applications the tool should be run in conjunction with the Accelerator AP tool to increase the impact while protecting the drillstring and surface equipment from shock.

Consistent performance controlled by drillerThe Hydra-Jar AP tool gives the driller the operational flexibility of controlling the direction (up or down), force, and frequency of impact. The tool is balanced to hydrostatic pressure through ports open to the wellbore, ensuring consistent hitting performance regardless of changes in downhole pressure. It is also temperature-compensated through the use of a unique detent system. This provides more consistent loading and firing of the jar over a broad range of borehole temperatures. These features—combined with careful materials selection and field-proven engineering—deliver a uniquely rugged, reliable downhole impact system.

Suitability for all drilling environmentsThe Hydra-Jar AP drilling jar performs effectively in every drilling environment—land or offshore, vertical or deviated wells, and ultradeep or ultrahot boreholes. Because the system works without applied torque, directional drilling tools maintain their orientation throughout the jarring operation. The jar may be run in compression or tension, enabling optimized placement in the string.

Flexibility and efficiencyThe fullbore design minimizes pressure losses and provides wireline tool compatibility. The jar makes up, racks, and handles like a standard-length drillpipe, reducing trip time. It provides up, down, or up-and-down impact without torquing or tripping for adjustments. The Hydra-Jar AP double-acting hydraulic drilling jar expands options for drilling, coring, cementing, testing, fishing, workover, and remedial operations.

Hydra-Jar AP

Applications ■ Drilling or workover operations ■ HPHT drilling conditions

Benefits ■ Operates in all drilling environments: land

or offshore, vertical or deviated wells, ultradeep or ultrahot wellbores

■ Expands options for drilling, coring, cementing, testing, fishing, workover and remedial operations

Features ■ Jarring direction, duration, and impact

intensity are controlled from rig floor ■ Fullbore design minimizes pressure losses

and provides wireline tool compatibility ■ Allows optimum placement in compression

or tension for best impact/impulse ■ Safety clamp enables jar to be made up,

racked, and handled like drillpipe joint, reducing trip time

■ Optional safety lock prevents jar from firing accidentally

■ Jar provides up and down impact without torque or tripping for adjustments

■ Tool length enables tool makeup and rack like standard length drillpipe

■ Temperature rated to 500 degF, optional ultra high temperature seals rated to 650 degF

■ Seals are rated to 20,000 psi ■ Circulation rated to 10,000 psi

Hydra-Jar AP

Detent system


Hydra-Jar AP

Hydra-Jar AP SpecificationsOuter Diameter, in [mm]

Inner Diameter, in [mm]

Tool Joint Connection

Overall Length Extended, ft.in [mm]

Maximum Detent Working Load, lbf [N]

Tensile Yield Strength, lbf [N]

Torsional Yield Strength, lbf.ft [N.m]

Up Stroke, in [mm]

Down Stroke, in [mm]

Total Stroke, in [mm]

Tool Weight, lbm [kg]

33⁄8[85.73]

11⁄2[38.10]

23⁄8 API IF 24.42[7,442]

44,000[195,712]

236,062[1,050,004]

6,842[9,276]

7[178]

7[178]

21[533]

500[227]

41⁄4[107.95]

2[50.80]

27⁄8 API IF 29.83[9,093]

70,000[311,360]

377,871[1,680,770]

15,381[20,853]

8[203]

7[178]

25[635]

800[362]

43⁄4[120.65]

21⁄4[57.15]

31⁄2 API IF 29.83[9,093]

95,000[422,560]

492,284[2,189,679]

19,126[25,930]

8[203]

7[178]

25[635]

1,050[476]

51⁄8 [130.18]

21⁄4[57.15]

WT 38 29.83[9,093]

95,000[422,560]

492,284[2,189,679]

30,000[40,650]

8[203]

613⁄16

[173.08]25[635]

1,155[524]

61⁄4[158.75]

23⁄4[69.85]

41⁄2 XH 31.17[9,499]

150,000[667,200]

730,324[3,248,481]

40,505[54,915]

8[203]

7[178]

25[635]

1,600[725]

61⁄4 Mod[158.75]

23⁄4[69.85]

41⁄2 XH 31.17[9,499]

150,000[667,200]

964,207[4,288,792]

50,757[68,814]

8[203]

7[178]

25[635]

1,600[725]

61⁄2[165.10]

23⁄4[69.85]

41⁄2 Reg IF 31.17[9,499]

175,000[778,400]

964,207[4,288,792]

54,796[74,290]

8[203]

7[178]

25[635]

1,850[839]

7[177.80]

23⁄4[69.85]

5 H 90 31.50[3,601]

230,000[1,023,040]

1,179,933[5,248,342]

67,396[91,372]

8[203]

8[203]

25[635]

2,600[1,179]

71⁄4[184.15]

23⁄4[69.85]

51⁄2 H 90 31.50[3,601]

240,000[1,067,520]

1,261,162[5,337,600]

84,155[114,093]

8[203]

8[203]

25[635]

3,000[1,360]

73⁄4[196.85]

3[76.20]

65⁄8 Reg 32.00[9,754]

260,000[1,156,480]

1,315,225[5,850,121]

86,848[117,744]

8[203]

7[178]

25[635]

3,200[1,451]

8[203.20]

3[76.20]

65⁄8 Reg 32.00[9,754]

300,000[1,334,400]

1,621,565[7,212,721]

98,490[133,528]

8[203]

7[178]

25[635]

3,550[1,610]

81⁄4[209.55]

3[76.20]

65⁄8 Reg 32.00[9,754]

350,000[1,556,800]

1,819,384[8,092,620]

115,418[156,478]

8[203]

8[203]

25[635]

4,000[1,814]

81⁄2[215.90]

3[76.20]

65⁄8 Reg 32.00[9,754]

350,000[1,556,800]

1,846,269[8,212,205]

115,418[156,478]

8[203]

8[203]

25[635]

4,500[2,041]

91⁄2[241.30]

3[76.20]

75⁄8 Reg 32.50[9,906]

500,000[2,224,000]

1,654,172[7,357,757]

152,802[207,161]

8[203]

8[203]

25[635]

5,600[2,540]


Accelerator AP

Accelerator AP

The Accelerator AP impact tool is recommended whenever a Hydra-Jar AP tool is placed in the string. It operates automatically with the jar, increasing reliability and ease of use, while protecting the drillstring and surface equipment from damaging shock waves.

Maximum jarring impact in any hole profileUsed in conjunction with the Hydra-Jar AP double-acting hydraulic drilling jar, the Accelerator AP tool combines the advantage of jarring up, down, or up-and-down with hydraulic fluid for maximum jarring impact. By increasing the velocity of the mass applied to the jar, the Accelerator AP tool ensures optimum impact force from the Hydra-Jar AP tool. When used with the Hydra-Jar AP tool, fluid compression inside the Accelerator AP tool compensates for limited drillpipe stretch in shallow or crooked holes, providing stored energy so that the fish is hit hard regardless of depth. The tool also optimizes jar performance in extended-reach, directional, and horizontal wells, where the stored energy in the drillpipe is lost because of hole drag.

Efficient energy transferThe Accelerator AP tool provides the same impact with less overpull at the jar. The hammer mass receives 100% transfer of the overpull.

Applications ■ Extended reach, directional, and horizontal

wells when drillpipe loses stored energy to hole drag

■ HPHT well conditions ■ Run in BHAs that include a Hydra-Jar AP

double-acting drilling jar

Benefits ■ Optimizes jar performance for recovery in

shallow or crooked holes ■ Impact force independent of hole condition ■ Creates up to twice as much impact force

than other tools for jarring up, down, or up and down

■ Protects the drillstring and surface equipment from damaging shock waves

■ Recommended whenever drilling jar is placed in drillstring

Hydra-Jar AP and Accelerator A

P impact fo

rce

Hydra-Jar AP impact force

0 50 100 150 200

100%

1,000

800

600

400

200

0

Max

imum

impa

ct fo

rce,

lbf

Actual applied load, lbf

Features ■ Fluid compression inside tool compensates

for limited drillpipe stretch in shallow wells, providing stored energy, creating maximum impact

■ Fullbore design minimizes pressure losses and provides wireline tool compatibility

■ Operates automatically with the jar, increasing reliability and ease of use

■ Efficient design ensures full overpull force is delivered to the hammer section, creating maximum positive impact

■ Rated to 500 degF, optional ultra high temperature seals rated to 650 degF

■ Seals are rated to 20,000 psi ■ Circulation rated to 10,000 psi

Accelerator AP offered in same size configurations as the Hydra-Jar AP drilling jar.

When run in combination with the Hydra-Jar AP jar or the HydraQuaker drilling jar, the Accelerator AP tool more than doubles the available impact force


Re-engineered to deliver 300% more impact force, the HydraQuaker* hydraulic drilling jar’s advanced capability can be traced to the 50 years of experience and impact tool excellence that defined Houston Engineers, developer of the Hydra-Jar AP double-acting hydraulic drilling jar. The new generation HydraQuaker jar’s highly effective detent system ensures more consistent loading and firing of the jar over a wide range of borehole conditions.

Designed for cost-effective operation in high-volume environments, the jar is easy to dress, extremely durable, offers dependable hitting performance in any application, and requires little maintenance.

Dependable and adjustable forceThe HydraQuaker jar is capable of higher overpull and impact than conventional impact tools of the same size. Because its impact action does not require buildup torque for firing, its long free stroke maximizes impact, producing consistent and effective jarring force.

The HydraQuaker jar’s impact action is fully adjustable downhole: Increasing the upward pull on the drillstring causes the tool to fire up, and slacking off causes the tool to fire down. It can be run in tension or compression, and its large piston area prevents automatic cocking or firing while pumps are operating normally. In addition, the jar’s flex subs provide tool joint flexibility for passing through high dogleg severity intervals.

Consistent force despite downhole conditions The HydraQuaker jar’s unique metering process compensates for the decrease in detent cylinder oil viscosity as the jar is fired

HydraQuaker

HydraQuaker

repeatedly, ensuring consistent impact to the stuck point regardless of downhole conditions.

Efficient drillstring activationOnce an impact has been delivered, the driller simply raises or lowers the drillstring, and the proprietary metering mechanism resets the HydraQuaker jar to deliver the next impact.

There is no need to circulate or cool down, because the jar’s proprietary design enables it to endure high pressures and operating temperatures of up to 300 degF and 450 degF when equipped with its optional high-temperature seals.

Applications ■ Drilling formations that cause drillpipe or

other components to stick ■ High-impact operations ■ High-temperature operations ■ Workover operations

Advantages ■ Proprietary metering mechanism enables

drillstring activation ■ Long free stroke delivers

maximum impact ■ Flex subs enable conveyance through high

dogleg severity intervals ■ Jar can be run in tension

or compression ■ Large piston area prevents automatic

cocking or firing with pumps operating normally

■ Proprietary detent ■ System ensures consistent impact in

300-degF and 450-degF conditions with optional high-temperature seals

HydraQuaker SpecificationsTool OD, in [mm]

4.75 [121]

6.25 [159]

6.5 [165]

8 [203]

Tool ID, in [mm]

2.25 [57]

2.75 [70]

2.75 [70]

3 [76]

Tool joint connection 3½ IF 4½ IF 4½ IF 65⁄8 RegMaximum detent working load, lbf [N]

90,000 [400,340]

185,000 [822,921]

185,000 [822,921]

300,000 [1,334,466]

Tensile yield strength, lbf [N]

452,737 [2,013,875]

761,980 [3,389,456]

916,152 [4,075,247]

1,302,363 [5,793,199]

Torsional yield strength, lbf.ft [N.m]

19,116 [25,918]

41,315 [56,015]

56,395 [76,461]

102,056 [138,369]

Tool weight, lbm [kg]

1,800 [483]

2,400 [894]

2,600 [969]

3,800 [1,550]

The latest generation HydraQuaker features upgrades to the detent system (above), improving impact force more than 300%.

Piston retainerDetent piston


The Hydra-TT* double-acting hydraulic jar is a slimhole impact tool designed to free equipment stuck downhole. Jarring force is delivered on up and down strokes, and the tool’s small diameter makes it ideal for use in coiled tubing (CT) operations, snubbing, and small-diameter rotary drilling and fishing applications. The Hydra-TT double-acting hydraulic jar has a robust design, high materials quality, and comprehensive quality requirements to ensure reliable performance in even the harshest downhole conditions.

Because the Hydra-TT double-acting hydraulic jar is capable of torque transmission, it can be used with a downhole motor. The tool is equipped with premium seals for use in both high-temperature and high-pressure wells, and prolonged jarring can be accomplished with a temperature-compensated detent system. It also has a large bore to accommodate drop balls and flow release equipment below the tool.

Applications ■ Milling, drilling, workover, remedial, or completion operations ■ Vertical, deviated, ultradeep, and ultrahot wellbores ■ Coiled tubing, snubbing, or concentric tubing work strings

Benefits ■ Optimized recovery in slimhole jarring operations ■ Dependable recovery in HPHT well conditions

Features ■ Double-acting design delivers jarring force on up and down strokes ■ Temperature compensated detent system enables prolonged jarring

when required ■ Large bore accommodates drop balls and flow release equipment

below tool ■ Maximum stroke length increases impact force, improving

tool effectiveness ■ Temperature rated to 500 degF ■ Seals rated to 20,000 psi differential ■ Circulation rated to 10,000 psi

Hydra-TT Double-Acting Hydraulic Jar

Hydra-TT Double-Acting Hydraulic Jar SpecificationsOverall Diameter, in

Internal Diameter, in


Overall Extended Length

Maximum Detent Working Load, lbf

Tensile Yield Strength, lbf

Torsional Yield Strength, lbf.ft

Free Stroke Up, in

Free Stroke Down, in

Total Stroke, in

Tool Weight, lbm

111⁄16 9⁄16 1–in AMMT 7 ft, 10 in 8,000 56,000 850 4 4 12 38

21⁄6 11⁄16 11⁄2–in AMMT 7 ft, 9 in 11,000 86,000 1,600 4 4 12 56

27⁄8 31⁄32 23⁄8–in PAC 8 ft, 3 in 20,000 200,000 5,300 4 4 12 140

Ordering instructions, please specify: • Hole size • Drillstring component OD where tool will be used • Connection size and type

Hydra-TT double- acting hydraulic jar


The Accelerator-TT* double-acting accelerator is a slimhole impact-enhancement tool designed to multiply jar impact by providing or maximizing the stored energy source. It has a small diameter, making it ideal for coiled tubing (CT) operations, snubbing, and small-diameter rotary drilling and fishing applications.

This accelerator also acts as a shock absorber, preventing impact damage to BHA components like CT connectors and back-pressure valves. It has a nitrogen-filled compression chamber that stores tool energy while reducing tool length, as well as a large bore to accommodate drop balls and flow release equipment below the tool.

Applications ■ Recommended anytime jar is included in work string ■ Milling, drilling, workover, remedial, or completion operations ■ Vertical, deviated, ultradeep and ultrahot wellbores ■ Coiled tubing, snubbing, or concentric tubing work strings

Benefits ■ Optimized recovery in slimhole, higher-impact jarring operations ■ Dependable recovery in HPHT well conditions ■ Protects BHA components from impact damage

Features ■ Nitrogen filled compression chamber stores tool energy while

reducing tool length ■ Large bore accommodates drop balls and flow release equipment

below tool ■ Maximum stroke length increases acceleration energy, improves

tool effectiveness ■ Temperature rated to 500 degF ■ Seals rated to 20,000 psi ■ Circulation rated to 10,000 psi ■ Functions as a shock absorber, preventing impact damage to

BHA components such as coiled tubing connectors and back pressure valves

Accelerator-TT Double-Acting Accelerator Tool

Accelerator-TT Double-Acting Accelerator Tool SpecificationsOverall Diameter, in



Overall Extended Length

Maximum Detent Working Load, lbf



Free Stroke Up, in

Free Stroke Down, in

Tool Weight, lbm

111⁄16 9⁄16 1–in AMMT 8 ft, 6 in 8,000 56,000 850 6 6 43

21⁄6 11⁄16 11⁄2–in AMMT 8 ft, 9 in 11,000 86,000 1,600 6 6 66

27⁄8 31⁄32 23⁄8–in PAC 9 ft, 1 in 20,000 200,000 5,300 6 6 156

Ordering instructions, please specify: • Hole size • Drillstring component OD where tool will be used • Connection size and type • Hole temperature • Desired work loads

Accelerator-TT double- acting accelerator


The Hydra-Stroke* bumper sub is a key drillstem component for deepwater drilling operations, where drillstring oscillation can be a problem. This tool provides 6 ft of reliable telescopic movement, without placing any limitations on drillstring torque capacity, tensile strength, or hydraulic capability.

Sub designed for reliabilityThe Hydra-Stroke bumper sub is fully balanced to the annulus and the mud pumps, making it completely reliable at any depth and in any drilling environment. The fully balanced feature eliminates the pump-open effect caused by internal pressure. The tool is rated for high temperature and pressure. Wellbore fluid cannot enter the drive section, improving reliability.

Applications ■ Isolating drillstring assemblies from effects of wave motion on

floating and semi-submersible rigs ■ Providing drillstring travel in plug and abandonment operations when

low level jarring or bumping is necessary ■ Providing travel necessary to deploy knives for casing

cutting operations

Benefits ■ Enables jarring for recovery of tools at any depth offshore ■ Operates dependably in HPHT well conditions

Features ■ Delivers up to six feet of stroke to compensate for drillstring

oscillation in offshore operations ■ Remperature rated to 500 degF ■ Seals rated to 20,000 psi differential ■ Circulation rated to 10,000 psi ■ Closed-drive system prevents ingress of wellbore fluid into drive

section, improving reliability ■ Fully balanced to eliminate pump-open effect caused by

internal pressure

Hydra-Stroke Bumper Sub

Hydra-Stroke Bumper Sub Specifications, Full BalanceOverall Diameter, in





Total Stroke, in Closed Length, ft.in

Tool Weight, lbm

51⁄4 21⁄4 31⁄2 API IF 600,000 28,000 72 35 ft, 3 in 1,500

61⁄2 23⁄4 41⁄2 API IF 964,207 58,300 72 32 ft, 8 in 3,200

8 3 65⁄8 Reg 1,571,980 114,000 72 36 ft, 2 in 3,340

Ordering instructions, please specify: • Hole size • Drillstring component OD where tool will be used • Connection size, type, right- or left-hand threads • Hole temperature • Tool diameter

Hydra-Stroke bumper sub

TMC Jar, Single-Acting Hydraulic Fishing Jar (Up Only)

The TMC Jar* single-acting hydraulic fishing jar combines optimal impact characteristics with highly durable construction for reliable fishing performance in harsh downhole environments. Tool seals are temperature rated to 500 degF and pressure rated to 20,000 psi. And, the temperature compensation system in the detent permits prolonged jarring without loss of impact force. Additionally, the TMC Jar’s closed-drive system prevents wellbore fluid from entering into the drive section improving tool performance and reliability.

Applications ■ Any fishing operation: stuck pipe, packer

retrieval, tubing removal, milling and debris recovery

■ Plug and abandonment operations, including pipe recovery, and wellhead removal

Benefits ■ Optimized jarring for fishing and other

recovery operations ■ Versatile and durable, endures HPHT

well conditions


TMC Jar, Single-Acting Hydraulic Fishing Jar (Up Only) SpecificationsTool OD, in

Tool ID, in


Overall Length, ft.in

Recommended Maximum Overpull Working Load, lbf

Total Stroke, in

Tensile Yield, lbf

Torsional Yield, lbf.ft

Tool Weight, lbm

113⁄16 3⁄8 113⁄16 WMF 7 19,000 9¾ 56,000 800 75

113⁄16 9⁄16 1 AM MT 5 17,000 7¼ 69,000 750 54

21⁄4 1⁄2 11⁄4 Reg 10 20,000 12 95,800 1,900 125

31⁄8 1 23⁄8 Reg 12 51,000 16 192,000 4,100 200

31⁄8 11⁄2 23⁄8 EUE 11 32,400 14 185,000 4,200 225

33⁄4 11⁄2 23⁄8 IF 12.2 59,000 16 257,000 6,600 240

33⁄4 2 23⁄8 EUE 11 38,000 16 233,000 7,400 325

41⁄4 2 27⁄8 IF 12.10 73,000 16 348,000 11,000 375

41⁄4 27⁄16 27⁄8 EUE 11 39,000 16 320,000 10,000 400

43⁄4 2 31⁄2 FH 13 90,000 16 422,000 14,000 425

43⁄4 21⁄4 31⁄2 IF 13.6 95,000 16 422,000 14,000 375

61⁄4 21⁄4 41⁄2 IF 15 180,000 18 900,000 50,000 950

61⁄2 21⁄4 41⁄2 IF 15 195,000 18 928,000 50,000 1,078

73⁄4 31⁄2 65⁄8 Reg 16 300,000 18 1,304,000 118,000 1,400

8 31⁄2 65⁄8 Reg 16 300,000 18 1,304,000 118,000 1,570

Features ■ Long free travel to optimize impact ■ Hydraulic metering system enables variable impact

loads, controlled by degree of upward load applied by operator

■ Rated to 500 degF ■ Seals rated to 20,000 psi differential ■ Circulation rated to 10,000 psi ■ Temperature compensation system enables

prolonged jarring when required ■ Closed-drive system to prevent ingress of wellbore

fluid into drive section improving reliability ■ Interchangeable parts enable conversion between

hydraulic jars and accelerator tools

Ordering instructions, please specify: • Hole size • Connection size, type, and left- or right-hand threads • Tool diameter • Hole temperature • Desired operating load

TMC Jar, single-acting hydraulic fishing jar (up only)


The TMC Accelerator* single-acting fishing accelerator improves jar impact and delivers a supercharged blow directly above fish. Used in conjunction with the TMC Jar, the TMC Accelerator maximizes jar impact regardless of depth. As a result, it can replace pipe stretch as the energy source in shallow holes, or supplement the pipe stretch energy in deeper wells. The accelerator tool’s robust design, quality materials, and comprehensive QA requirements ensure reliable performance in the harshest fishing conditions.

Applications ■ Any fishing operation: stuck pipe, packer retrieval, tubing removal,

milling and debris recovery ■ Plug and abandonment operations, including pipe recovery and

wellhead removal

Benefits ■ Reflects shock waves that propagate up work string and damage

tool joints, top drives, and other surface components ■ Interchangeable parts enables conversion between accelerator

tools and hydraulic jars, reducing parts inventory and increasing flexibility

Features ■ Delivers maximum blow directly above fish regardless of depth or

wellbore environment ■ Rated to 500 degF ■ Seals rated to 20,000 psi differential ■ Circulation rated to 10,000 psi ■ Closed drive system prevents ingress of wellbore fluid into drive

section, improving reliability


TMC Accelerator, single-acting fishing accelerator (up only)


† Check stroke before loading the TMC Accelerator tool, if stroke varies, stop sleeves must be modified to obtain stroke as listed.‡ Shop test at 70 degF for a nominal BHT of 240 degF, settings for other expected bottom hole temperatures are available upon request.†† Minimum overpull requirement for a jar-accelerator tool combination to obtain an efficient impact.††† Maximum overpull can be increased in the shop, as the maximum increases, the minimum increases.

Ordering instructions, please specify: • Hole size • Connection size, type, and left- or right-hand threads • Tool diameter • Hole temperature • Desired operating load

TMC Accelerator, Single-Acting Fishing Accelerator (Up Only) SpecificationsTool OD, in 113⁄16 113⁄16 21⁄4 31⁄8 31⁄8Tool ID, in 3⁄8 9⁄16 1⁄2 1 11⁄2Tool Joint Connection 113⁄16 WFJ 1 AM MT 11⁄4 Reg 23⁄8 Reg 23⁄8 EUEOverall Length, ft.in 5.10 4.6 8 10 9Tensile Yield, lbf 56,000 69,000 95,800 192,000 185,000Torsional Yield, lbf.ft 800 750 1,900 4,100 4,200Total Travel with Stop Sleeve†, in 8 71⁄4 10 12 101⁄2Rack Test‡, in @lbf 63⁄4 @ 6,000 41⁄4 @ 5,000 71⁄2 @ 6,000 11 @ 29,000 10 @ 13,200 Oil Fluid, fl ozUS 2 2 2 3 2Minimum overpull at 240 degF with jar and accelerator combination, lbf††

7,500 6,000 5,200 19,000 8,400

Maximum overpull at 240 degF with jar and accelerator combination, lbf

19,000 17,000 20,000 50,000 32,400

Tool Weight, lbm 60 46 100 160 130

TMC Accelerator, Single-Acting Fishing Accelerator (Up Only) SpecificationsTool OD, in 33⁄4 33⁄4 41⁄4 41⁄4 43⁄4Tool ID, in 11⁄2 2 2 27⁄16 2Tool Joint Connection 23⁄8 IF 23⁄8 EUE 27⁄8 IF 27⁄8 EUE 31⁄2 FHOverall Length, ft.in 10.4 9 10.8 11.8 11Tensile Yield, lbf 257,000 233,000 348,000 320,000 422,000Torsional Yield, lbf.ft 6,600 7,400 11,000 10,000 14,000Total Travel with Stop Sleeve†, in 113⁄8 12 111⁄4 12 103⁄8Rack Test‡, in @lbf 10 @ 31,000 101⁄8 @ 16,000 95⁄8 @ 32,000 107⁄8 @ 19,000 8 @ 36,000 Oil Fluid, fl ozUS 3 3 4 3 8Minimum overpull at 240 degF with jar and accelerator combination, lbf††

22,000 16,000 32,000 15,000 54,000


59,000 38,000 73,000 39,000 90,000

Tool Weight, lbm 180 160 300 268 350


TMC Accelerator, Single-Acting Fishing Accelerator (Up Only) SpecificationsTool OD, in 43⁄4 61⁄4 61⁄2 73⁄4 8Tool ID, in 21⁄4 21⁄4 21⁄4 31⁄2 31⁄2Tool Joint Connection 31⁄2 IF 41⁄2 IF 41⁄2 IF 65⁄8 Reg 65⁄8 RegOverall Length, ft.in 11.10 12 12 13 13Tensile Yield, lbf 422,000 900,000 928,000 1,304,000 1,304,000Torsional Yield, lbf.ft 14,000 50,000 50,000 118,000 118,000Total Travel with Stop Sleeve†, in 103⁄8 12 12 12 12Rack Test‡, in @lbf 8 @ 37,800 83⁄4 @ 46,700 83⁄4 @ 46,700 10 @ 72,000 10 @ 72,000 Oil Fluid, fl ozUS 8 12 12 12 12Minimum overpull at 240 degF with jar and accelerator combination, lbf††

47,400 66,600 66,600 84,000 84,000


95,000 107,000††† 107,000††† 150,000††† 150,000†††

Tool Weight, lbm 325 800 900 1,200 1,350


† Torsional yield is based on the tool joint connection.

TMC Bumper Fishing Bumper Sub

The TMC Bumper* fishing bumper sub combines maximum stroke length and high-torque transmission to enable the operator to bump up or down until fish are recovered. The TMC Bumper’s robust design, quality materials, and comprehensive quality requirements ensure reliable performance in the harshest downhole environments.

Applications ■ Suitable for all fishing operations: stuck pipe, packer retrieving,

tubing removal, milling and debris recovery ■ Plug and abandonment operations, including pipe recovery and

wellhead removal ■ Releases spears or overshots and shear pins ■ Dislodges stuck string, acts as a feed-off tool in backoff operations

Benefits ■ Sub’s stroke and torque enables operator to bump up or down until

recovery is completed

Features ■ Maximum stroke length and high-torque transmission ■ Rated to 500 degF ■ Seals rated to 20,000 psi differential ■ Circulation rated to 10,000 psi ■ Closed-drive system prevents ingress of wellbore fluid into drive

section, improving reliability

TMC Bumper Fishing Bumper Sub SpecificationsTool OD, in Tool ID, in Tool Joint

ConnectionOverall Length, ft.in

Total Stroke, in

Tensile Yield, lbf

Torsional Yield†, lbf.ft

Tool Weight, lbm

113⁄16 3⁄8 113⁄16 WFJ 4.8 93⁄4 56,000 800 48

113⁄16 9⁄16 1 AM MT N/A 71⁄4 69,000 750 54

21⁄4 1⁄2 11⁄4 Reg 6 12 95,800 1,900 75

31⁄8 1 23⁄8 Reg 7.1 16 192,000 4,100 125

31⁄8 11⁄2 23⁄8 EUE 6.11 14 185,000 4,200 100

33⁄4 11⁄2 23⁄8 IF 8.2 16 257,000 6,600 142

33⁄4 2 23⁄8 EUE 6.9 16 233,000 7,400 120

41⁄4 2 27⁄8 IF 8.3 16 348,000 11,000 232

41⁄4 27⁄16 27⁄8 EUE 9.5 16 320,000 10,000 260

43⁄4 2 31⁄2 API FH 8.8 16 422,000 14,000 337

43⁄4 21⁄4 31⁄2 API IF 9.6 16 422,000 14,000 314

61⁄4 21⁄4 31⁄2 API IF 9.8 18 900,000 50,000 794

61⁄2 21⁄4 41⁄2 API IF 9.8 18 928,000 50,000 890

73⁄4 31⁄2 65⁄8 API Reg 10.4 18 1,304,000 118,000 955

8 31⁄2 65⁄8 API Reg 10.4 18 1,304,000 118,000 1,110

TMC Bumper fishing bumper sub


Hex Fishing Bumper Sub

The Hex* fishing bumper sub supplies durable and economical upward or downward bumping action for fishing operations. Full-torque transmission and circulation, through the tool, can be maintained constantly in any stroke position. The Hex sub’s robust design, quality materials, and comprehensive quality requirements ensure reliable performance in the harshest downhole environments.

Applications ■ Delivers forceful blows in open and cased-hole recovery of fishing

tools or safety joints ■ Releases spears or overshots, shear pins, dislodges a stuck string,

and acts as a feed-off tool in backoff operations ■ Plug and abandonment operations where low level jarring may be

required, or when cutting strings of casing

Benefits ■ Higher torque transmission for back-off applications ■ Only five major components, ensuring reliable performance and

economical maintenance

Features ■ Hexagonal mandrel ensures continuous torque transmission ■ Up to 36–in stroke delivers solid-bumping action, upward or downward ■ Fullbore design minimizes pressure losses and provides wireline

tool compatibility

Ordering instructions, please specify: • Hole size • Drillstring component OD where tool will be used • Connection size and type • Required stroke length

Hex Fishing Bumper Sub SpecificationsTool OD, in Tool ID, in Tool Joint

ConnectionTotal Closed Length, in

Total Stroke, in

Tensile Yield, lbf

Torsional Yield, lbf.ft

Tool Weight, lbm

113⁄16 3⁄8 113⁄16 WFJ 413⁄4 20 99,000 1,150 25

31⁄2 1 23⁄8 Reg 621⁄2 20 193,000 5,200 95

33⁄4 11⁄2 23⁄8 IF 611⁄2 20 214,000 7,000 140

33⁄4 11⁄4 27⁄8 Reg 611⁄2 20 233,500 7,000 150

41⁄4 115⁄16 27⁄8 IF 591⁄8 20 352,000 12,800 140

43⁄4 2 31⁄2 IF 621⁄2 20 341,400 14,800 198

61⁄4 2 41⁄2 IF 641⁄2 20 813,900 33,000 390

61⁄4 21⁄4 41⁄2 IF 641⁄2 20 705,400 33,000 375

61⁄2 21⁄4 41⁄2 IF 645⁄8 20 760,000 34,000 415

63⁄4 23⁄4 51⁄2 Reg 671⁄4 20 790,000 38,000 455

73⁄4 31⁄2 65⁄8 Reg 711⁄8 20 900,000 40,000 655

8 31⁄2 65⁄8 Reg 711⁄4 20 1,200,000 40,000 717

Hex fishing bumper sub

Borehole Enlargement

Schlumberger Borehole Enlargement32

Borehole Enlargement Introduction

Schlumberger Borehole Enlargement Combines Leading Technologies and ProductsSchlumberger combined leading technologies to offer the industry’s best borehole enlargement tools: Rhino XC* on-demand hydraulically actuated reamer, Rhino XS* hydraulically expandable reamer, and Reamaster-XTU* forged cutter arm underreamer, were joined with innovative drilling products and software systems such as, Quad-D* dual-diameter drift drill bits, Quad-D directional drilling products, and IDEAS* integrated drillbit design platform and i-DRILL* engineered drilling system design.

IDEAS platform enables analysis of wellbore enlargement components: Bits, reamers, and hole openers can be modeled to predict how they will behave in a drilling application. In the area of wellbore enlargement, IDEAS platform software enables Schlumberger engineers to tailor the Rhino XC reamer’s cutting structure for specific applications.

The i-DRILL system accurately simulates the downhole behavior of drill bits, BHA components, and the drillstring and provides operators with a virtual picture that accurately depicts the dynamic downhole drilling environment. This capability enables designers to find optimum solutions for even the most complex drilling problems. Additionally, the simulation and analysis produces balanced drillbit and hole opening cutting structure design information to eliminate excessive vibrations. i-DRILL system design develops more accurate drilling program schedules with reduced risk of unplanned delays—saving the operator time and money.

Schlumberger complements this technology with DBOS* drill bit optimization system, which helps determine the appropriate combination of cutting structure, gauge protections, hydraulic configuration, and other optimizing features. Additionally, YieldPoint RT* drilling hydraulics and hole cleaning simulation program, HART* software for hydraulic optimization and i-DRILL for BHA design provide operators around the world with the capability to optimize drilling performance of their underreaming while drilling (UWD) operations.

Beyond the latest technologies, Schlumberger can offer key information and management resources: Smith Bits DRS* drilling records system holds more than 3.5 million records from oil, gas, and geothermal wells from around the world. And, Schlumberger has the engineering expertise, experience, and worldwide resources to conduct comprehensive pre-job analysis, unmatched on-site performance, and post-job review. The combination of these technologies and resources form an advanced wellbore enlargement capability—delivering high-quality wellbores regardless of the application.

Rhino XC cutter blocks are designed with the IDEAS platform.

Schlumberger Borehole Enlargement 33

Rhino XC Reamer

Unmatched underreaming performance and actuation controlBuilding on Rhino XS reamer technology, the Rhino XC on-demand hydraulically actuated reamer enables a faster activation sequence than previous generations of hydraulically activated reamers. It efficiently enlarges wellbores for improved casing running, cementing clearance, and equivalent circulating density (ECD) control.

The Rhino XC reamer’s on-demand actuation system provides complete control of reamer cutter block deployment: It uses a flow activation system, which eliminates the need for time-consuming pumpdown device activation that can take up to 30 minutes. This allows the reamer to be placed below ID-restricted BHA components such as MLWD tools. And, with flow actuation control, the Rhino XC reamer provides the fastest cutter block activation and deactivation in the industry.

Reliability with borehole qualityAs with all Rhino* integrated borehole enlargement systems, the Rhino XC reamer features the Z-Drive reamer cutter block deployment system to ensure cutter blocks are deployed during activation and retracted when the reamer is deactivated.

The Rhino XC reamer is designed for a variety of formations where simultaneous drilling and hole-enlargement reliability are essential. The reamer’s one-piece, balanced design increases torque and load-carrying capacity while reducing drilling-generated vibrations that produce undergauge and irregular boreholes.

Controls high-fluid volumes for effective cleaningThe Rhino XC reamer’s three nozzles can be changed to ensure optimum borehole cleaning and cuttings evacuation. The tool’s large bore handles high-fluid volumes with optimized distribution between the bit and cutter blocks, as well as the fluid requirements of rotary steerable systems and directional assemblies.

Durability with application flexibilityFor extended footage, optional Predator* cutter blocks are available. Equipped with the ONYX* PDC cutters, Predator cutter blocks maximize ROP with cutters that remain sharper longer. ONYX cutters are more thermally stable for greater wear and impact resistance than other PDC cutters. And, single-set placement of each cutter on the cutting profile ensures a more stable and durable cutting structure.

The Rhino XC reamer is designed to improve drilling performance over a wide range of applications: from hard and highly abrasive to

interbedded difficult-to-drill formations. For unmatched reliability, efficiency, and control, the Rhino XC on-demand reamer is the industry’s premier borehole enlargement tool.

Applications ■ BHA placement below ID restricted components, such as

MLWD tools ■ Boreholes requiring multiple reaming and nonreaming intervals ■ Rotary BHA near-bit reamer placement ■ Highly abrasive formation drilling ■ Close-tolerance and expandable casing programs ■ Extended-reach drilling and well profiles beyond 65°

Benefits ■ Provides on-demand wellbore enlargement ■ Improves drilling performance ■ Ensures full-gauge concentric wellbores

Features ■ Unlimited activations regardless of wellbore inclination ■ Full-flow capability in reaming and nonreaming modes ■ PDC cutter blocks rapidly deploy and retract ■ Integrated jet nozzle effectively cleans boreholes

Rhino XC reamer

Rhino XC SpecificationsTool Series Overall Body

Diameter, in Standard Fishing Neck Diameter, in

Enlarged Hole Size, in

Minimum Pilot Hole Size, in

Internal Bore Diameter, in

Internal Bore Diameter without Nozzles, in

Increased Tool Length Due to Actuator, in

Sub Outer Diameter, in

Maximum Flow Rate, galUS/min

8000 8.00 71⁄4 9–101⁄4 81⁄4 2.00 1.94 38.6 7.25 750 9250 9.25 71⁄4 101⁄4–113⁄4 91⁄2 2.00 1.94 38.6 7.25 750 11625 11.63 101⁄2 13–15 121⁄8 3.00 2.7 59 11 1,700 13000 13.00 103⁄4 141⁄2–161⁄2 131⁄2 3.00 2.7 59 11 1,700 14250 14.25 11 153⁄4–181⁄4 141⁄2 3.00 2.7 59 11 1,700 16000 16.00 12 171⁄2–20 161⁄2 3.00 2.7 59 11 1,700 16000 17.375 12 181⁄2–22 171⁄2 3.00 2.7 59 11 1,700


The rugged, precision-engineered Rhino XS reamer is the industry’s premier hydraulically expandable borehole enlargement tool, demonstrating superior reliability in 1,000s of runs worldwide. The reamer effectively enlarges wellbores up to 25% for improved casing running, cementing clearance, and equivalent circulating density (ECD) control. The tool is effective in a variety of formations where simultaneous drilling and hole enlargement reliability is essential. The Rhino XS reamer’s one-piece, balanced design increases torque and load carrying capacity, while reducing drilling-generated vibrations that produce undergauge and irregular boreholes.

Reliable hydraulically expandable reamerThe Rhino XS reamer is hydraulically activated and deactivated by pumping fluid through the drillstring and into the tool’s piston bore. A ball-drop activation/deactivation mechanism increases differential pressure when the first ball is dropped by restricting the tool bore, shearing the shear pins and deploying the cutters; pressure indicators at the surface signal full cutter deployment. For applications that require circulation with the cutter blocks in the closed position, an optional double ball drop (DBD) is available. The reamer’s activation/deactivation mechanism prevents fluid flow from deploying cutters during shoe track drilling or whenever circulation is necessary to help avoid stuck BHAs or casing damage.

In place of cutter arms, the Rhino XS reamer features a patented Z-Drive* reamer cutter block deployment system. This system traverses the cutter blocks to a pre-selected diameter and hydraulically clamps them into position. The parallel tongue and grove actuation design of the Z-Drive system ensures reliable cutter block deployment and retraction.

The Rhino XS reamer has three changeable nozzles to ensure optimum cleaning and cuttings evacuation. The tool’s large bore handles high fluid volumes with optimized distribution between the bit and cutter blocks. This high-fluid capability also accommodates the fluid requirements of rotary steerable systems and directional assemblies.

Rhino XS Reamer

Applications ■ Deepwater operations ■ Drilling extended intervals with advanced rotary steerable

systems (RSS) ■ Extended-reach drilling ■ Back reaming in loosely consolidated formations ■ Drilling highly abrasive formations ■ Close-tolerance and expandable casing programs ■ Optimizes tubular programs, achieving higher production

rates at lower cost

Benefits ■ Reliable hydraulic actuation ensures fullgauge concentric wellbores ■ Aggressive PDC cutter blocks for higher ROP in an array of

formation types

Features ■ Dependable cutter block retraction avoids stuck BHAs and

casing damage ■ Integral back-reaming capability ensures construction of full-

diameter wellbore ■ Integrated jet nozzle and flow paths improve clean out while drilling

Upper cap

Spring retainer

Spring coverStop ring

Spring

Predator cutter block

Lower mandrel capLower cap

Piston

Drive ring retainer

Drive ring

Nozzle

Rhino XS reamerThe DBD deactivation option is used to deactivate the Rhino Reamer while allowing full flow to drill ahead or circulate when POOH with the reamer closed.


Rhino XS Reamer

Rhino XS Reamer SpecificationsTool Series Overall Body





Maximum Thru Flow, gpm

3500 3.50 31⁄2 4–41⁄2 33⁄4 0.875 141 4000 4.00 4 41⁄2–51⁄2 41⁄4 0.875 141 4500 4.50 41⁄2 43⁄4–53⁄4 43⁄4 1.125 230 5500 5.50 51⁄4 61⁄2–7 53⁄4 1.25 230 5625 5.62 51⁄4 61⁄2–7 57⁄8 1.38 350 5800 5.80 51⁄4 61⁄2–73⁄8 61⁄8 1.38 350 6125 6.13 53⁄8 7–71⁄2 63⁄8 1.38 350 6375 6.38 53⁄8 7–8 63⁄4 1.38 350 7300 7.25 61⁄4 8–9 71⁄2 1.50 500 8000 8.00 71⁄4 9–101⁄4 81⁄4 2.00 750 9250 9.25 71⁄4 101⁄4–113⁄4 91⁄2 2.00 750 10000 10.00 81⁄2 11–121⁄2 101⁄2 2.50 1200 10375 10.38 81⁄2 113⁄4–131⁄2 107⁄8 2.50 1200 11625 11.63 101⁄2 13–15 121⁄8 3.00 1700 13000 13.00 103⁄4 141⁄2–161⁄2 131⁄2 3.00 1700 14250 14.25 11 153⁄4–181⁄4 141⁄2 3.00 1700 16000 16.00 12 171⁄2–20 161⁄2 3.00 1700 16000 17.375 12 181⁄2–22 171⁄2 3.00 1700 17500 17.50 12 211⁄2–24 181⁄8 3.00 1700


Rhino XC on-demand reamers and Rhino XS reamers can be equipped with Predator cutter blocks, which employ the latest technological advances.

Faster ROP and fewer tripsPredator* cutter blocks use ONYX* PDC cutters, which are more thermally stable, as well as more wear- and impact-resistant than conventional PDC cutters. Extensive testing and analysis is used to optimize every step in the manufacture of these cutters, resulting in improved performance over a wide range of applications, from hard, highly abrasive to interbedded, difficult-to-drill formations. The cutters remain sharp longer, translating into more footage drilled at maximum ROP and substantially reduced drilling costs. Moreover, the single-set cutter placement, which means that each cutter is in a unique location on the cutting profile, results in a more stable and durable reamer cutting structure.

Optimized designThe advanced cutting structure is optimized for maximum ROP with minimum vibration using the industry’s most advanced drillstring dynamics modeling software, IDEAS. This brings application-specific cutting structures to borehole enlargement and avoids damaging vibrational loading of the cutters.

The reamer placement and operating parameters are also optimized for performance with the rest of the BHA components. Combining the best cutter with the most dynamically stable design delivers maximum performance in multiple formations, with minimum vibration, a high-quality borehole, and maximum ROP.

Predator Cutter Blocks

Predator cutter block

Predator Cutter Block SpecificationsTool Series Reaming Cutter

CountBackreaming Cutter Count

Cutter Size, mm Rows Cutter Type Optimized Bit† Opening Range, in

5625 36 24 9 6 ONYX MDi813 61⁄2–78000 50 18 13 6 ONYX MSi716 91⁄4–101⁄4 10000 62 17 13 6 ONYX MDi813 11–121⁄211625 93 25 13 9 ONYX MDi813 13–1514250 74 24 13 9 ONYX MDi716 153⁄4–181⁄416000 48 33 19 6 ONYX MDi816 181⁄2–2216000 50 33 19 6 ONYX MDi813 171⁄2–20† Optimized bit used in the final modeling with IDEAS, cutter block designs have been validated with other bit types.


Cement Cleanout Blocks

The Rhino XS reamer with cement cleanout blocks functions as a cleanout tool to remove the cement sheath that forms in the casing ID when drilling out the shoe track. The cement cleanout tool is typically run in tandem with a standard Rhino XS reamer.

Benefits ■ Dependable cutter block retraction reduces

risk of stuck BHAs ■ Acts as a stabilizer to drill new formation

after the shoe track has been drilled out

Features ■ Reliable hydraulic activation ■ Cutter block design eliminates PDC cutter

contact with casing ID

Because flow through the tool activates its cutter blocks, flow should be halted whenever the tool passes restrictions that are smaller than the tools diameter with its cutter blocks deployed.

The tool is available in several sizes, and it can be configured for a wide range of casing IDs.

Cement cleanout block

22-in, 16000 Rhino XS reamer

22-in, 16000 Rhino XS reamer with cement cleanout blocks

Filter sub

Drill collar(s)

Drill collar(s)

Hevi-Wate drillpipe

MLWD

MLWD

8-in stabilizer

8-in stabilizer

Rotary steerable system

181⁄8-in PDC bit

Example of BHA using Rhino XS reamer with cement cleanout blocks


As well profiles and the individual components in modern drillstrings become more complex, reducing drillstring vibration becomes an increasingly important factor in building a quality borehole. The Rhino stabilization system is an integrated configuration consisting of the Rhino XS reamer and the Rhino stabilizer, which work in concert to reduce vibration downhole.

The Rhino system’s concentric stabilizer increases lateral support in the enlarged wellbore and improves dynamic stability. This impedes vibration that can shorten the service life of downhole tools and surface equipment, slows drilling, results in an irregular borehole and—in severe cases—leads to loss of the entire BHA downhole.

The Rhino stabilizer is activated by the same ball-drop mechanism as the Rhino XS reamer and is typically run undergauge 30 ft above the reamer. Tungsten carbide and diamond-enhanced inserts in the stabilizer blocks ensure superior wear resistance.

Applications ■ Drilling extended intervals with advanced RSS ■ Extended-reach drilling ■ Back reaming in loosely consolidated formations ■ Drilling highly abrasive formations

Benefits ■ Provides concentric, stable points of contact in the enlarged

wellbore, increasing lateral support ■ Helps ensure quality wellbores

Features ■ Tungsten carbide, diamond-enhanced inserts ensure superior

wear resistance ■ Cutters deployed with reliable Z-drive system

Rhino Stabilization System

Rhino Stabilizer SpecificationsTool Series Overall Body





Maximum Thru Flow, gpm

4500 4.50 41⁄2 43⁄4–53⁄4 43⁄4 1.125 2305625 5.62 51⁄4 61⁄2–7 57⁄8 1.38 350 6125 6.13 53⁄8 7–71⁄2 63⁄8 1.38 3507300 7.25 61⁄4 8–9 71⁄2 1.50 350 8000 8.00 71⁄4 9–101⁄4 81⁄4 2.00 7509250 9.25 73⁄4 101⁄4–113⁄4 91⁄2 2.00 75010000 10.00 81⁄2 11–121⁄2 101⁄2 2.50 120010375 10.38 81⁄2 113⁄4–131⁄2 103⁄4 2.50 120011625 11.63 101⁄2 13–15 121⁄8 3.00 170013000 13.50 11 141⁄2–161⁄2 131⁄2 3.00 170014250 14.25 11 153⁄4–181⁄4 143⁄4 3.00 170016000 16.375 12 171⁄2–20 161⁄2 3.00 170016000 16.00 12 181⁄2–22 171⁄2 3.00 1700

Tungsten carbide hardfacing

Z-Drive tongue and groove actuation

Diamond-enhanced gauge inserts

Rhino stabilizer


The fixed-diameter hole opener enlarges boreholes using a range of milled tooth and tungsten-carbide insert (TCI) cutting structures that are available for a variety of formation conditions. The tool features three cleaning jets with replaceable nozzles, which continually clean the tool’s cutting structure, clearing debris buildup, and enabling sustained penetration. This is particularly important in sticky formations where balling can occur. The hole opener also enlarges holes in soft clays and shales, medium to hard shales, and limestones. The tool is available in 6¼– to 42–in size, with hand-tool detachable cutters for efficient redress and minimum downtime.

Applications ■ Top-hole enlargement accommodates drive pipe, conductor casings,

and large-diameter surface casings ■ Hole enlargement at river crossings and other balling-prone formations ■ Borehole enlargement in soft to hard formations

Benefits ■ Cutting structures that are available for a variety of formation conditions ■ Sealed bearings and TCI cutters in most diameters for increased

application utility

Features ■ Cutter arms can be changed on rig floor for quick replacement ■ Three replaceable jets clean cutting surfaces, prevent balling, ensure

fast penetration, and effective hole cleaning ■ Upjets aid cuttings removal ■ Robust design endures long interval drilling ■ High-velocity oxy-fuel (HVOF) carbide coating reduces tool body erosion

Fixed-Diameter Hole Openers

Fixed diameter hole openers with OD less than 26–in have 3 cutters (left) Fixed diameter hole openers with OD 26– to 36–in have 4 cutters (right)Fixed diameter hole openers with OD 42–in have 6 cutters (not shown)

Fixed-Diameter Hole Opener SpecificationsTool Series Opening Diameter, in Minimum Pilot Hole

Size, inLength, in Body OD, in Inner Bore Diameter, in Number of cutters

17500 171⁄2 121⁄14 693⁄4 121⁄4 11⁄2 326000 26 171⁄2 851⁄2 171⁄2 2 432000 32 24 11211⁄16 24 2 436000 36 26 10211⁄16 26 2 442000 42 30 11411⁄16 30 3 6


The Drilling-Type Underreamer (DTU) is a tricone underreamer with cutter arms that deploy in response to hydraulic pressure on a piston-cam system. The underreamer runs in conjunction with a drill bit or a bullnose on a bottom-box connection depending on pilot hole condition or project objectives. The tool’s three-arm design can increase the pilot hole diameter up to 75%, depending on tool size.

The underreamer’s cutters retract in the absence of hydraulic pressure and the closing force of a piston spring. This enables the tool to be repositioned for selective underreaming or retrieval from the well. The tool allows fluid flow to the bit or bullnose through the bottom connection; flow can be divided depending on the application. Orifice jets can be selected in accordance with existing hydraulics to cool cutters and maintain annular lift of cuttings.

Applications ■ Wiping out bridges and keyseats ■ Drilling and underreaming in fault zones and swelling formations ■ Opening reservoir sections for gravel packing ■ Underreaming while drilling (UWD)

Benefits ■ Increases the pilot hole diameter up to 75% ■ Can be selectively repositioned for selective underreaming or retrieval

Features ■ API Reg box down for makeup to bit or jetted bullnose ■ Milled-tooth, TCI, or PDC cutters available for formation demands ■ Facilitates fluid passage to bits or jetted bullnoses to divert flow

when necessary ■ Cutter arms can be changed on rig floor for quick replacement

Drilling-Type Underreamer

Drilling-type underreamer

Bullnose SpecificationsTop Pin Connection, Reg Body Diameter, in Nominal Length, in25⁄8 35⁄8 1831⁄2 43⁄4 3641⁄2 61⁄4 3641⁄2 71⁄2 4865⁄8 8 4875⁄8 9 4885⁄8 10 48

Drilling-Type Underreamer SpecificationsTool Series Standard

Opening Diameter, in

Optional Opening Diameter, in

Body Diameter, in

Collapsed Diameter, in

Fishing Neck Length, in


Overall Length, in

Top Pin/Bottom Box Connection, Reg

Approximate Weight, lbm

Minimum Pilot Hole Diameter, in

17000 32 24–32 17 17 20 9, 10 127 75⁄8, 85⁄8 3,800 171⁄222000 36 28–42 22 22 20 9, 10 100 75⁄8, 85⁄8 4,400 24


The Reamaster-XTU underreamer has two, large, robust cutter arms to facilitate greater cross-sectional cutting at the underreamer cutter pockets. Larger cutters also provide means larger sealed bearings and PDC cutters for optimized underreaming performance. The ability to run more drilling weight on the tool and spend more time on bottom, results in cost-effective underreaming. The Reamaster-XTU underreamer’s ability to increase an existing pilot hole up to 70% makes it ideal for a range of drilling and remedial operations.

Fluid flow has been optimized using gun-drilled ports, which deliver more drilling mud to the underreamer and drillbit’s cutters. This improves hole cleaning efficiency and accommodates the fluid requirements of other downhole tools.

The Reamaster-XTU underreamer has cutting structures that can be customized for a broad range of applications and formation types. The tool’s sealed-bearing milled-tooth and TCI cutters are designed specifically for underreaming operations with a capability that rivals the penetration rate and cutting structure life of a drill bit. PDC cutters are also available for long intervals.

Applications ■ Wellbore enlargement below restrictions ■ Minimum clearance and expandable casing programs ■ Underreaming while drilling (UWD) ■ Gravel packs and expandable-screen completions ■ Reaming out keyseats and clean up downhole ledges

Benefits ■ Increase an existing pilot hole up to 70% ■ Improves hole cleaning efficiency ■ Accommodates the fluid requirements of other downhole tools

Features ■ Forged cutter arms endure high-shock and torque loads ■ Sealed-bearing cutters extend on-bottom life ■ Positive lock keeps arms deployed ■ Optimized fluid distribution ensures drilling mud delivery ■ Strategically placed nozzles ensures efficient hole cleaning ■ Milled-tooth, TCI, and PDC cutting structures available for a

range of formations

Reamaster-XTU Underreamer

Reamaster-XTU Underreamer SpecificationsTool Series Opening Diameter, in Pilot Hole

Size, inCollapsed Body Diameter, in



Overall Length, in



5750 81⁄2, 9 57⁄8–61⁄2 53⁄4 18 43⁄4 90 31⁄2 5007200 11, 113⁄4, 121⁄4 71⁄2–11 71⁄4 18 53⁄4 99 41⁄2 7008250 97⁄8, 105⁄8, 11, 121⁄4, 131⁄2 81⁄2–97⁄8 81⁄4 18 53⁄4 123 41⁄2 9009500 121⁄4, 131⁄2, 15, 16 97⁄8–121⁄4 91⁄2 24 8 136 65⁄8 1,10011750 14, 15, 16, 171⁄2 121⁄4–141⁄2 113⁄4 20 8 130 65⁄8 1,70016000 20, 22, 24, 26 171⁄2–22 16 20 10 140 85⁄8 3,200

TCI cutter

PDC cutter

Milled tooth cutter

Reamaster-XTU underreamer


The Rock-Type Underreamer (RTU) features three specially designed cutter arms with large cones. When deployed, these arms enable the tool to underream boreholes to nearly twice their original diameter. The hydraulically operated cutting arms lock into the open position when fluid pressure is applied, and automatically retract into the body when pressure is relieved.

The RTU underreamer features a range of milled-tooth and TCI cutting structures and can be easily tailored to specific formation conditions. To meet budget variables, milled-tooth cutters are available in open- and sealed-bearing configurations. PDC cutters are also available on request.

Applications ■ Underreaming hard formations with no bit or bullnose below

the underreamer ■ Underreaming for openhole gravel pack completions ■ Special casing programs in heaving shales or fault zones ■ Opening sections for sidetracking ■ Underreaming solely to create a pilot hole

Benefits ■ Can be easily tailored to specific formation conditions ■ Range of cutters meets budget variations

Features ■ Wide selection of cone and cutter types to ream in a variety

of formations ■ Three-cone design accommodates relatively large cones ■ Orifice jets control mud volume to meet downhole conditions ■ Cutter arms can be changed on rig floor for quick replacement

Rock-Type Underreamer

Rock-Type Underreamer SpecificationsTool Series

Standard Opening Diameter, in

Optional Opening Diameter, in

Body Diameter, in

Collapsed Diameter, in



Overall Length, in



Minimum Pilot Hole Diameter, in

4500 61⁄2, 81⁄2 6–9 41⁄2 45⁄8 18 41⁄8 67 27⁄8 235 43⁄45700 81⁄2, 9, 93⁄4, 10, 101⁄2, 11 8–11 53⁄4 6 18 43⁄4 761⁄2 31⁄2 380 66000 105⁄8–13 11–12 61⁄8 61⁄8 18 43⁄4 781⁄2 31⁄2 380 61⁄27200 91⁄2–14 9–14 71⁄4 73⁄8 18 53⁄4 86 41⁄2 775 75⁄88200 10–16 10–16 81⁄4 83⁄8 18 53⁄4, 8 89 41⁄2, 65⁄8 920 81⁄29500 121⁄4–171⁄2 121⁄4–18 91⁄2 93⁄4 18 8 91 65⁄8 1,160 97⁄811700 15–22 143⁄4–22 113⁄4 121⁄4 20 8 91 65⁄8 1,670 121⁄415000 LP 26 171⁄2–30 143⁄4 143⁄4 20 8, 9 97 65⁄8, 77⁄8 2,800 171⁄2

SDS

DT

DG, C4

V2

TCIRock-type underreamer

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*Mark of SchlumbergerOther company, product, and service names are the properties of their respective owners.Copyright © 2012 Schlumberger. All rights reserved. 12-DT-0243

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