Checklists for the members of the rig team: OIM, Barge Master, Toolpusher, Driller, Assistant Driller, Derrick Man,  Cement Operator, Mud Engineer, Mud Logger.

Download HPHT Checklists - Word Document

1. OIM / Barge Master HPHT Daily Checklist

• prepare non essential personnel list (to be agreed with company drilling supervisor)
• hold morning meeting
• obtain copy of daily work instruction and post
• verify days since last bop test
• verify days since last h2s drill
• verify days since last fire drill
• verify days since last abandon rig drill
• verify supply vessel schedule
• verify third party hp compliance & performance
• verify weekly h2s and combustable gas sensor test
• verify minimum stocks and requirements

2. Senior Toolpusher HPHT daily checklist

• Prepare daily work instructions
• Hold operational pre-tour briefing with drill crew + service company personnel on shift.
•  Check hole volume work-sheet
• Obtain slug calculations from mud engineer

from drilling supervisor

• kick tolerance calculations
• Current swab and surge calculations
• ECD at bit and shoe
• Pipe speed limitations
• ROP limitations

from mud loggers

• Current gas trend

Verify/ record the following:

• All instruments and chart recorders calibrated
• Verify cross checking of mud logging and driller instrumentation
• Choke usage log & BOP usage log up to date
• Hours since last choke inspection
• Days since last BOP test
• Days since last BOP function test
• Days since last wear bushing inspection
• Days since last gas detection calibration
• Days since last mud measurement system calibration
• Days since last check of MGS
• Hours since last Top Drive service
• Hours since Swivel Packing changed

3. Driller HPHT Checklist (each tour)

• Check line up of choke manifold
• Check Well can be Safely Shut in
• Check active volume alarms
• Pump through choke and kill lines
• Complete new hole volume work sheet
• Take SCR as soon as safely possible, update kill sheet
• Note wind direction and designate over board line
• Have and fill out drilling parameters sheet every 30 min
• Review rams space out and shut in procedure
• Function test all safety valves (Kelly TDS and Stab in)

from Mud Loggers

• Agree/Record all daily losses/gain (carry over daily)
• Agree on volume in all mud pits
• Lag time
• Position of connection gas in the annulus
• Position of Trip gas flow check gas in the annulus

from company company drilling supervisor / contractor tool pusher

• kick tolerance calculations
• Current swab and surge calculations
• ECD at bit and shoe
• Pipe speed limitations
• ROP limitations

from Mud engineer

• Mixing or transfer instructions
• Slug calculations
• Confirmation last trip volumes are available

from assistant driller and derrick man

• HP check list (ensure they have fully complied with their check list)

confirm all aspects of the following have been satisfactirily dealt with:

• Kick assembly
• Safety valves, darts
• Choke manifold
• MGS
• Active mud volume requirement
• Minimum stocks
• Degasser
• Barite System

4. Assistant Driller HPHT Checklist (each tour)

• Function test both remote operated auto chokes
• Check choke manifold valves are aligned correctly
• Check choke manifold equipped w/ Lo-pressure gauges
• Verify amount and accessibility of glycol
• Verify MGS ‘U’ tube is flushed and full after each use
• Check trip tank is half full
• Verify dropping dart passes through both valves and all tubular
• Verify minimum ID of Tool string
• Verify Drop In Dart location (dog house) and condition
• Verify 15K Kelly cocks, Gray valves and associated XO are operational
• Verify Kick assembly accessibility
• Verify Drill Pipe tally and count
• Run Degasser
• Verify shakers being attended by responsible person
• Up date BOP and choke usage log
• Up date BHA rotating hours
• Copy of drilling parameter log in rig files
• Verify Koomey unit is in running order. Check gauge reading in dog house.
• Monitor and record annulus well pressure.

5. Derrick Man HPHT Checklist (each tour)

• Verify surge tanks topped up with barite
• Verify mud balance have been checked and calibrated
• Purge Bulk transfer lines
• Check and set all pit level markers
• Verify total mud volume on surface (active, reserve & kill mud) exceeds 250m3, clear with mud loggers.
• Calculate Total Active System =……….m3
• Verify with mud engineer sufficient mud chemicals are available to build 150m3 of drilling mud.
• Verify LCM stocks are accessible in sack store and exceed 5 MT
• Verify all mud mix systems are operative
• Agree optimum mud slug parameters from Driller / Mud engineer
• Obtain mixing / transfer instructions from mud engineer (clear with driller)
• Obtain from mud engineer Barite tonnage required to raise active mud by 0.1 SG
• Calculate total active volume at + 0.1SG

6. Cement Operator HPHT Checklist

Daily checks

• Check that Fuel tank is full
• Check all oil levels
• Check all down hole & surface tools are on board (RTTS packer) and take inventory
• Check cement vent
• Check cement and chemicals are sufficient to set 3 x 200m long cement plugs
• Take inventory of all chemicals & check against minimum stock requirement

Weekly Checks

• Pressure test unit
• Check spares against inventory.
• Make sure cement has been fluffed up
• Check barites supply to cement unit
• weekly maintenance audit complete

Material requirement (safety stock only)

Cement volumes

7. Mud Engineer HP daily Checklist

• Record mud volume: Agree with derrick man and mud loggers
• Pilot testing completed
• Ensure mixing / transfer / slug information clear to all relevant personnel
• Verify mud balances have been checked for calibration
• Calculate swab, surge and hydraulics and inform Company drilling supervisor
• Verify oil show in cuttings
• Verify Shaker screens optimised
• Verified stock and compare with minimum stock levels
• Verify barite lines have been tested
• What is the maximum volume of mud that can be mixed with the chemical on board: ___m3

Material required to build 150 m3 of active mud.

Kill mud weight…………SG                       Kill mud volume…………m3

Premix weight…………..SG                       Premix volume…………. m3

8. Mud Logger HPHT daily Checklist

• Complete new hole volume work sheet
• Driller provided with all relevant information
• Check limits on all monitored systems
• Carry out flow meter checks
• Follow position of any gas in annulus (Pump off, Drilled gas, Trip gas…etc)
• Monitor trend in gas levels (BGG, Drilled Gas, Trip Gas)
• Monitor flow line temperature and trend
• Check that driller’s instrument cross checked with mud logger’s
• Monitor days since last major gauge calibration
• Monitor days since last calibration check of gas and H2S detection system.
• Is weekly maintenance audit complete
• Daily ditch magnet recovery.        Recovery………………….grams
• Record total and composition of all shut down, connection and trip gases to be recorded on morning report
• Record 24 hr mud loss/gain and carry over daily. Confirm with mud engineer and classify gain/losses (seepage, formation, super-charging)
• Note any drilling parameters, ‘D’ exponent changes

from company drilling supervisor

• kick tolerance calculations
• Current swab and surge calculations
• ECD at bit and shoe
• Pipe speed limitations
• ROP limitations