RIG MOVE SOIL BORING

RIG MOVE

Nardipta Pratama

PURPOSE • Determine Tip Penetration

of Spudcan Legs

• Obtain Preliminary Report

Rig Move

( Drilling logs BH, Summary

lab result, design parameter,

LPA analysis, writing report)

MANAGEMENT

• Coordination & communication (Client , Owner , agent,

nesitor)

• Preparation (Personal & Equipments)

• Equipment ( Lab tools, Tube mechanism, Drag Bit , etc)

Health & Safety Equipment

• PPE (Personal Protective Equipment) :

Helm, gloves, eye glasses, earplug, boots, ware pack

• Tag Boat :

Standby accompany KS Java Star Jackup • Life Boat ( LB 1 & 2 ) = 40-50 /

LB

• Life Raft ( LR 1 & 2) = 25 / LR

• Please silent (x Asbes), other person rest at room (Shift)

• Personal Basket (Video)

• ParaMask (Gas)

• Life jacket vest & work vest

• Stop card

• Radio

• Body Harness

• T card

• Fire drilling training

• Max POB = 100

• HSE Working Permit

HSE (PERSONAL BASKET)

HSE (LIFE BOAT)

LB = 40 - 50 Persons

HSE (T – Card)

HSE (TAG BOAT)

HSE Working Permit

• Before work , need to get approval

from authorize supervisor (tool

pusher or driller supervisor, safety

advisor, OIM)

• Work permit must be attached with

JSA (Job Safety Analysis)

JSA (Job Safety Analysis)

EQUIPMENT(AG Tool Kits)

Drag Bit and Cross Over

Drag Bit 0.95

Outer Diameter = 6 3/8

Inner Diameter = 2 ½

Cross Over 0.85

Outer Diameter = 6 3/8

Inner Diameter = 2 3/4

AG TOOL KITS

AG TOOL KITS

TOOL BOX INVENTORY

No Type Quantity

1 Mechanism 3

2 Sliding 1

3 SPT Split Spoon 2.5 '' 2

4 Sievel 1

5 Coupling 1

6 10 mm Steel Wire 1 roll

7 Sample Adaptor 2

8 Latching Sub 2

9 Safety Harness 2

10 UD (good condition) 7

11 UD (Damaged) 4

12 Sample extruder(enerpack) x1 come with extention

13 UD tube clamp 1

14 Drag Bit 2

15 Cross Over Pipe 3

16 Fluid Film 1/2 Dozen

17 WD 40 1/2Dozen

18 Pipe Wrench 2

19 Split Spoon with cathcer 1

20 Allen Key Set (mm) 1

21 Hand Glove 4 Dozen

22 Fast Orange Hand Cleaner

23 Screw Driver Set 1Set

24 Duct Tape 3 nos

EQUIPMENT (Nesitor Equipment – Slick line)

• Function for put the

mechanism + tube to the

drilling hole and pull out

again to retrieve the

sample

• Nesitor have 1 operator

and 2 assistance

• 1 operator inside the wire

machine

• 2 assistance give guidance

from drill deck

JACKUP SPESIFICATION

Max Preload : 40.4 Mn

Area Spudcan : 108.2 m2

Equivalent Diameter : 11.7 m

Tip below Widest Section : 2.8 m

RIG DRILLING SPESIFICATION

ALL AG PROJECTS ( JACKUP SPESIFICATION )

Drill Deck

Load / unloading Crain

WORK TYPE

• Drilling Supervision

• Laboratory Test

• Analysis and Reporting

• Coordination / communication

• HSE Working Permit

DRILLING SUPERVISION ( DRILL DECK )

Drilling Supervision ( ROD STRING )

Drilling Supervision

• Drilling Supervision is the initial important sequence for

get good data before going to lab test – analysis and

reporting

• If the depth of test is wrong and the sample is cutting, so

the result of lab and analysis is wrong too

• Key in garbage so output garbage too

DRILLING SUPERVISION

Drilling Supervision ( Drilling Sequence )

• Install Drag bit and cross over to the drill string

• Put the drill string to Mudline & Record the mudline depth

• Combine the mechanism tool pusher with UD tube and connected to wire slick line

• Lowering sampling probe to the Mudline

• ( Relaxing wire)

• Raise up the drill string about 4 feet

( 1.2 m), so the latching opened

• Push the drill string about 3 feet ( 90 cm)

• Raise up the wire slick line about 1m ( the latching become close and the wire stressed)

• Pull up the drill string about 3 feet

• Pull up the wire slickline and take the sample from mechanism

• Wash boring 3 feet below mudline ( 2 times flushing)

• Lowering sampling probe (tube and mechanism )to the marking line

• Pull out the drill string about 4 feet(

so the latching opened

• Push the drill string about 3 feet ( 90

cm)

• Raise up the wire slick line about 1m

( the latching become close and the

wire stressed)

• Pull up the drill string about 3 feet

• Pull up the wire slickline and take

the sample from mechanism

• Repeat again until the final depth

Drilling Supervision (marking line )

The important items :

• Marking line with chalk and control

the depth

• Control the measurement

Drilling Supervision (Latching)

• Latching will opened if touching

the ground level

• Latching will closing if pull up

from the ground level

• Wash the small hole with water

(side and bottom of mechanism)

• Install the tube to mechanism and

set up the screw flat with tube

• Bandage the screw with

cellophane tape (red arrow)

• Bandaged for air hermetical so easy

to get difficult sample like very soft

clay

Drilling Supervision (Unit Converter)

• 1 m = 3.28 feet

• 1 feet = 0.3048 m

• 1 inch = 0.025400 m

Drilling unit = feet

Slick line unit = feet

LABORATORY TEST (Important things)

1. Put the tube sample from drill deck

2. Extrude the sample from tube (manual extruder)

3. Cut the sample about 5-6 pieces

4. Torvane and Pocket Penetrometer

Torvane Small Blade x 25 = Kpa (Firm – Stiff layer)

Medium Blade x 10 = Kpa ( Firm Layer)

Big Blade x 2 = Kpa (Very Soft – Soft Layer)

Pocket Penetrometer

Result x 50 = Kpa

• If got low consistency, please don’t take the PP

• If got medium – high consistency, please take the PP

• Write up the depth based on the place of test

5. For Density , use the PVC pipe for measure weight of soil

• height , diameter and weight

• For Soft soil using small diameter

• For medium – high consistency using core diameter

6. Take the sample about 10-15 cm

Soil Description

• Soil Description

Sequence : Consistency, Colour, Colour code, Secondary

and Primary, inclusions

Example : Very soft greenish grey ( 5GY 5/I) silty CLAY

With traces of organic pockets, few sand pockets and traces

of shell fragments

• Sand Partings

• Clay Pockets

Primary & Secondary Soil Type

• CLAY = Lempung

• SILT = Lanau

• SAND = Pasir

• GRAVEL = KERIKIL

• Clayey SILT = Lanau kelempungan

• Gravelly SAND = Pasir Kerikil

• Silty CLAY = Lempung kelanauan

• Sandy SILT = Lanau kepasiran

• Sandy GRAVEL = Kerikil Kepasiran

Soil Shear Strength (consistency)

Colour

• Greenish GREY = Abu abu ke hijauan

• Redish BROWN = Coklat kemerahan

• Brownish GREY = Abu abu kecoklatan

• Greyish GREEN = Hijau keabu-abuan

• Orangist BROWN = Coklat orange

• Pale BROWN = Coklat pucat

• Dark BROWN = Coklat gelap

Inclusions, Structure, Quantity

Inclusions

• Shell fragments (serpihan kerang)

• Organics (campuran hasil pelapukan daun, humus, akar)

• Decayed wood ( Kayu )

• Ferrous

• Clay

Structure

• Slickensided (Rock)

• Fissured (soil)

• Pockets ( sand , organics )

• Partings (sand)

• Seams (Rock)

• Lamination (sand, rock)

Quantity

• Traces, few, little (sand, clay,

organics, shell, wood)

< 15-30 %

• Some ( similar material)

>15-30%

• Numerous

ANALYSIS & REPORTING

• Submerge Density Excell

• Borehole Logs excell (grapher)

Sample No

Depth

Submerged Density

Torvane

Pocket Penetrometer

• Soil stratigraphy

• Break Layers

• Su Design

• SUW (Submerge Weight

Density)Design

• Design Tabulation

• Leg Penetration Analysis (Upper

Bound)

• Leg Penetration Analysis (Lower

Bound)

• SOTR (Summary of Test Result)

• Write up

• Report Submit and comment

Daily Report

• Record the daily activity

in detail time and

analysis

• Record the standby time

and the reason in analysis

Geotechnical Crews

• Chief Party (Team Leader)

• Geotechnical Engineer

• Drilling Supervisor

• Assistant Driller

• Lab Technician

Chief Party & Geotech Engineer

• Coordination with client ( Pageo, PHE)

• Preliminary Report

• Daily Progress Report

• Mob Demob certificate

• Assist other person (Lab tech, driller supervisor)

• Fulfill the lack of work

Laboratory Technician

• Coordination driller to Lab Tech (the depth), Geotech –

lab tech

• Conduct Lab Testing ( Density, Torvane dan Pocket

Penetrometer)

• Maintenance lab equipment and tools

• Record inventory tools while demob from location

Drilling Supervisor

• Supervise drilling activity, confirm the mudline depth and

insitu test depth

• Inform the depth to Lab Technician

• Coordination with driller

• Note the drilling activity

Drilling Assistance

• Assist drilling supervisor (Confirm the depth)

• Assist lab technician

• Maintenance Lab and tool equipments

Working & Learning Diagram

Stay Foolish and hungry (Steve Jobs)