Drilling+Efficiency

7/28/2019 Drilling+Efficiency

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Drilling Efficiency


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About This Program This program was developed by the drilling

personnel of Global Marine UK Drilling Co.as a consequence of GM UK being awardeda five well turnkey job for Fina Oil and afour well incentive alliance drilling program,

both in the UK North Sea.

The program was developed with the ideathat working efficiently would reduce the

time and costs of drilling the wells withoutcompromising safety or causing damage tothe drilling equipment.


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Drilling Efficiency Overview

The Concept Consists of the Following:

Morning Meetings

Meetings are not more that 20 minutes Should involve drilling contractor supervisors, all

Operator representatives and third party personnel that

will be involved in the drilling program for that day

Meetings should be a daily program


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Continued Tool Box Meetings

Crew level meetings, i.e. driller and drill crew,crane operator and roustabout crew,mechanic/chief engineer and maintenance crew.

Checklists

Needs to cover the activities of that day.

Needs to cover all aspects of the job.

Needs to assign a person responsible.

Allows the responsible person to sign off thatthe job has been done.


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Continued Written Instructions

Write instructions for all critical procedures.

Must be short and cover routine as well as non-routine jobs.

Involves the input of the operator, drilling

contractor supervisors and third party personnel

as appropriate.


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SampleWritten InstructionsNow that the 26 hole has been drilled, it is time to run the 20 casing. All tools, etc. required for this operation havebeen prepared in accordance with the checklist for Running 20 Casing. The casing has been measured ahead of timeand a running list will be made out. The casing running list, usually made out by the operators drilling supervisor orengineer, is basically a list defining the correct order in which the casing is to be ran.

The first joint to be picked up is the shoe joint. The bottom 10 15 is painted white to aid visibility when entering the30 housing. A rotating ring is attached to this joint, about 10-12 feet from the bottom, for guide ropes.

When the shoe joint is picked up, water is pumped into it to test the integrity of the shoe. The shoe is basically a nonreturn valve. When the shoe joint is confirmed to be in good working order and is lowered through the rotary, the guideropes can be secured from the rotating ring to the guide lines. These guide ropes act as a guide for entering the 30housing. Now all of the remaining intermediate joints can be ran. After these joints have been ran, it is time to pick upthe 18 3/4 wellhead housing. Depending on the operator, the housing may already be made up and standing in thederrick, or the running tool will have been installed on deck.

Before picking up the wellhead housing it is good practice to count the joints of casing remaining on deck to confirm thetotal joints ran reflects the the running list. With the wellhead resting on the rotary table, a third party engineer willcheck operation of the running tool. With the running tool checked and reinstalled, the complete casing string is ran ondrill pipe (landing string). Prior to stabbing the 30 housing, the compensator should be unlocked and put in mid stroke.The ROV should be present on the seabed to aid in stabbing. The last stand of the landing string will have a crossoverfrom the pipe connection to a 2A weco union fitted on top. The landing string will have been spaced out so that the

wellhead when landed in the 30 will have approximately 10-20 feet of pipe sticking up above the rotary. Once thewellhead is landed, a 20,000 lbs. over pull will be taken to ensure engagement of the latch ring that connects thewellhead to the 30 housing.

Satisfied that the latch has connected, a circulating line from the mud pumps/cement line can be rigged up. All of theequipment required for the cement job will have been checked according to the checklist Cement 20 casing

Once the circulating line has been hooked up, it is customary to to pump at least the volume of the casing using either therig mud pump or the cement pump. When pumping is complete, the cement unit will be lined up to the circulating line,etc., etc., etc.


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Continued

Critical Path Planning

Needs to be done for all rig activities.

Best to use Gantt charts or pert charts. Best to use Microsoft Project Manager.

Identification of tools and equipment to facilitate the

drilling program, i.e. rotating mousehole, step on

slips, automatic driller, iron roughneck, E-Z torque,etc.


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Overview Continued

Identifying Constraints in the drilling process

Identification of the limitations of the drilling

process, i.e. tools, equipment, personnel,training, shorebase management, third party

equipment and services, etc.

Problem identification and problem solving


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Some Grade School Management

Concepts

Develop Clear Objectives.

Clearly Communicate the Importance of

Achieving the Objectives.

Make a plan to achieve the objectives.

Successfully implement the plan.

A goal without a plan is but a dream


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Some Common Goals of the

Operator and Contractor

Safety

Downtime Control

Good Food

Clean Rig


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Some not so Common Goals

Operator - Drill the well on or under budget. Contractor - Operate the rig under budget.

Operator - Drill the well as fast as possible.

Contractor - Keep the rig on contract as longas possible.

Operator - Find a suitable rig for the lowestdayrate possible.

Contractor - Find a job for the rig with thehighest dayrate possible.


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Drilling Efficiency

Unfortunately, contract drilling is one of the fewindustries in which the service provider does not

consistently identify with the clients objectives.Contractors usually do not develop a plan to meetthe clients objectives.

Contractors need to:

Identify the clients objectives. Establish a goal to meet the clients objectives.

Formulate a plan to meet the clients objectives.

Execute the plan to achieve the clients objectives.


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Good Plans / Bad Plans If the goal is to meet or beat the drilling time curve,

a bad plan to achieve this goal would be: Run the mud pumps to 130 SPM

Run the mud pumps to 4800 PSI

Run the maximum weight on the bit by running the drill

pipe in compression.

Run the blocks up and down as fast as possible while

tripping or making a connection.

Move the rig with a full load of liquid mud, casing, drill

pipe in the derrick, etc.

Compromise safety by getting in a hurry.

Cause damage to the rig equipment by exceeding the

equipment limitations.


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Good Plans / Bad Plans

A Bad Plan Will:

Compromise safety for speed.

Will also eventually cause damage to the rig

equipment resulting in expensive

mechanical downtime.

This is not what we want to accomplish.


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Do We Really Need a Learning Curve?

NOWe can do it: The First Time - On

Time - Every Time.


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Identify the critical path.

Do good task analysis.

The drilling program should be a planned project.

It is not a daily episode, waiting on a crisis.

Managing the past or planning the future.

What is a poorly planned round trip?

What is a well planned round trip?


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Task Analysis

Start / Start

Task 1

Task 2 Task 3

Finish / Finish

Task 1

Task 2

Task 3


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Task Analysis

Finish / Start

Task 1

Task 2

Task 3

Lead Time

Task 1 Task 2

Task 3


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Task Analysis

Lag Time

Task 1

Task 2

Task 3

T k R l i U i Mi f


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Task Relations Using Microsoft

Project Manager


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Drilling a Well is a Project

We Recommend Using Microsoft Project Manager.

And, Using a Gantt Chart for Following the Critical

Path.

What is a Critical Path?

A critical path is the linking of tasks that must be done on

a Finish/Start or a Lead Time Relation.

S l G tt Ch t P U i Mi ft P j t M


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Sample Gantt Chart Page Using Microsoft Project Manager

S l G tt Ch t P f S i b ibl


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Sample Gantt Chart Page for Semisubmersible


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If a task has a Finish/Finish or a Start/Start

Relation, then it should be on a checklist.


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Planning Meeting A planning meeting should be held daily.

It should be only 15 - 20 minutes long.

Who Should Attend?

Contractor Supervisors

Operator Supervisors Third Party Personnel as Appropriate

What Should Be Discussed?

Critical path planning

Checklists

Narratives (Written Plans)

Review Potential Problems and Discuss Safety


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Bad Trip - No Planning Drilling

Mix Slug

Pump Slug Pull Out of Hole

Call Drilling Supt for Bit Info Bring Bit to Floor

Bring Pliers & Jets to Floor

Install Jets Call Drilling Sup for BHA Info

Drilling Supt Calls Shorebase

Shorebase Calls Directional Co.

Shorebase Calls Rig

Bring Subs to Floor

Rig Down Old BHA Pick up New BHA

Double Handle BHA

RIH

Total = 22.75 Hours


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Good Trip - Well Planned Drilling

Mix Slug

Pump Slug Pull Out of Hole

Call Drilling Supt for Bit Info Bring Bit to Floor

Bring Pliers & Jets to Floor

Install Jets Call Drilling Supt for BHA Info

Drilling Supt Calls Shorebase

Shorebase Calls Directional Co.

Shorebase Calls Rig

Bring Subs to Floor

Rig Down Old BHA Pick up New BHA

RIH

Total = 13 Hours

Bad Trip Using Microsoft Project Manager


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Bad Trip Using Microsoft Project Manager

ID Task Name Durati

1 Dril l ing 1 h

2 Mix Slug 1 h3 Pump Slug 0.5 hr

4 Pull Out Of Hole 4 hrs

5 Call Dri l l ing Sup For Bit I 0.25 hr

6Bring Bit To Floor 0.5 hr

7 Bring P liers & Jets To Fl 0 .5 hr

8 Install Jets 0.5 hr

9 Call Drill ing Sup For BH 0.5 hr

10 Dril l ing Sup Calls Shore 1 h

11 Shorebase Cal ls Directio 1 h12 Shorebase Calls Rig 0.5 hr

13 Bring Subs To Dril l Floo 1 h

14 Rig Down Old BHA 2 hrs

15Pick Up New Bit 0.5 hr

16 Pick Up New BHA 2 hrs

1 2 3 4 5 6 7 8 9 10 11 12

Good Trip Planning Using Microsoft Project Manager


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ID Task Name Duration

1 Drilling 6 hrs

2 Mix Slug 1 hr3 Pump Slug 0.5 hrs

4 Pill Out Of Hole 4 hrs

5 Call Drilling Sup For Bit Info 0.25 hrs

6 Bring Bit To Floor 0.5 hrs

7 Bring Pliers & Jets To Floor 0.5 hrs8 Ins tall Jets 0.5 hrs

9 Call Drilling Sup For BHA Info 0.5 hrs

10 Drilling Sup Calls Shorebase 1 hr

11 Shorebase Calls D irectional Co 1 hr

12

Shorebase Ca lls Rig0.5 hrs

13 Bring Subs To Drill Floor 1 hr

14 Rig Down Old BHA 2 hrs

15 Pick Up New Bit 0.5 hrs

16 Pick Up New BHA 2 hrs

17

RIH4 hrs

18 Total 13 Hrs 0 days

4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9

Mon May 1

Good Trip Planning Using Microsoft Project Manager


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Good Trip / Bad Trip Costs No. of Hours - Good Planning Bad Planning

Mix Slug 00.0 1.00

Pump Slug 00.5 0.50

Pull Out of Hole 4.00 4.00

Call Drilling Supt for Bit Info 00.0 0.25 Bring Bit to Floor 0.00 0.50

Bring Pliers & Jets to Floor 0.00 0.50

Install Jets 0.00 0.50

Call Drilling Supt for BHA Info 0.00 0.50

Drilling Supt Calls Shorebase 0.00 1.00

Shorebase Calls Directional Co. 0.00 1.00

Shorebase Calls Rig 0.00 0.50

Bring Subs to Floor 0.00 1.00

Rig Down Old BHA 2.00 2.00

Pick up New BHA 0.50 0.50

Double Handle BHA 0.00 3.00

RIH 4.00 4.00

Total = 13.0 Hrs 22.75 Hrs

At 100,000/Day Spread Cost = $54,166 $94,791

The bad trip cost was $40,625


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Good Task / Bad Task

Relationship

Just as we have a good trip/bad trip

situation, we also have a good cementing

operation/bad cementing operation, goodnipple up/bad nipple up, etc.

We can reduce the time for any project by

changing the task relationships or by notdoing the task at all.


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Checklists

What is a checklist task and what is a

critical path task?

A critical path task is a task that must be done

in sequence. It must be done as a lead time

relation or a finish/start relation.

A checklist item is a task that must be done butcan be taken off the critical path and made into

a finish/finish or a start/start relation.


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Checklists

Checklists

Should be job specific

Should be rig specific

Are basic outlines

Should address potential problems

Should be a live system, i.e. readily changeable

Jackup Drilling Rig Equipment and Procedures ChecklistChecklist


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Jackup Drilling Rig Equipment and Procedures Checklist

Operation: Tripping

OPERATOR: WELL: RIG: DATE:

ITEM CHECKS ASSIGNED INITIALS

Pre - Trip

Equipment

Checks

The following are to be completed prior to

tripping drill pipe.

Person or

title

When

completed

Tongs Check and replace tong dies as necessary

Check for spare tong dies

Check jaws

Check and repair/replace retainer

bolts/pins as required.

Iron Roughneck Check & replace worn/slick dies

Inspect hydraulic/hoses/couplings forleaks and damage

Check operation

Spinning wrench Check operation

Check and replace worn dies

Check hydraulic hoses/couplings for leaks

& damage.

D.P. Elevators Check & repair worn retainer bolts on

ears.

D.C. Elevators Check & repair worn retainer bolts on

ears

Check & repair retainer bolts

Link arms and

link ears

Check for excessive wear and cracks

Traveling block

hook & bail

Check for cracks and excessive wear

Master bushing

and slips

Check fit and check for wear.

Checklist

Sample

Portion


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Checklists

Pre-operations start-up

Prepare to spud

Drive Pipe

Drill conductor hole

Run conductor casing

Cement conductor casing Grout conductor casing (Top Job)

Grout conductor (With BOP Installed)


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Checklists

Install Diverter System Drill surface hole (17 1/2)

Under-ream surface hole

Run surface casing Cement surface casing

Install wellhead

Nipple up BOPs

Test BOPs

Drill intermediate hole (12 1/4)


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Checklists

Establish shut in procedure

Establish kill procedure

Logging operations

Run intermediate casing (9 5/8)

Cement intermediate casing Install casing spool

Install and nipple up BOPs


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Checklists

Drill production hole (8 1/2)

Run production casing

Run production liner

Cement casing

Cement liner Set P&A plugs

Cut and retrieve casings


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Review of Drilling Efficiency

Drilling Efficiency is:

Controlling costs by working efficiently (Reducing the time ittakes to drill a well).

Critical path planning.

Using Checklists.

Holding a daily planning meeting. Holding toolbox meetings.

Using narrative (written) instructions.

Identifying tools and equipment to facilitate the drilling program,i.e. rotating mousehole, auto driller etc.

Identify Constraints, i.e. solids control equipment, rig power,pumps, etc. rig crews, shorebase management, training, etc.

Utilizing constructive criticism, i.e. Report Card with feedback.


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