Casing Operations Responsibilities

This article describes the various responsibilities for casing running operations and quality control.

Responsibilities for casing/liner preparation, hole conditioning and mud conditioning prior to running are listed in the following table:

Action	Execution	Quality Control
Ordering Casing/Liner, accessories and backup	Equipment and Logistics Supervisor	Operations Engineer
Order running equipment	Drilling Supervisor Operations Engineer	Drilling Supervisor Operations Engineer
Prepare casing/liner for running, i.e., drifted, thread cleaned and doped	Drilling Contractor	Drilling Supervisor Operations Engineer (Site)
Determine placement of centralisers	Operations Engineer	Drilling Supervisor
Prepare casing/liner running program	Drilling Supervisor	Drilling Supervisor Operations Engineer (Site)
Condition hole and mud	Mud Engineer Drilling Contractor	Drilling Supervisor Mud Engineer
Conduct a safety meeting for all personnel involved in the job to confirm and discuss procedures and safety precautions	Drilling Supervisor	Drilling Supervisor Operations Engineer (Site)
Casing/Liner evaluation running	Drilling Supervisor	Operations Engineer

Responsibilities during casing/liner running are listed in the following table:

Action	Execution	Quality Control
Make an accurate record of the string as it is installed in the well	Drilling Contractor	Drilling Supervisor Operations Engineer
Run and land casing/liner including make up of connections.	Drilling Contractor	Drilling Supervisor
Ensure the various weights and grades of casing/liner are run in proper sequence, that centralisers, scratchers, marker joints etc. are installed properly and are correctly positioned	Drilling Contractor	Drilling Supervisor
Inspect casing/liner during running. Ensure it is made-up to the correct torque specifications	Drilling Contractor through the Casing/liner Contractor	Drilling Supervisor
Confirm casing/liner tally prior to landing including correct measurement of all joints	Drilling Supervisor Operations Engineer	Drilling Supervisor Operations Engineer

Responsibilities for casing/liner testing and report preparation are listed in the following table:

Action	Execution	Quality Control
Prepare casing/liner running report and cementing report form	Drilling Supervisor	Operations Engineer
Test casing/liner	Drilling/Cement Contractor	Drilling Supervisor
Final casing report	Drilling Supervisor	Operations Engineer

Drilling Supervisor responsibilities:

verifying that the correct size, weight, grade and connections as per the Drilling Programme have been delivered
independently measuring the casing and ensuring that no differences exist in the casing tally as measured by the Drilling Contractor
counting the total number of joints and comparing this number with the casing tally, shipping manifest and number of joints remaining on site
keeping a record of the total joints on locations and joints on the rack prepared for running
numbering the casing joints in running order
preparing the Casing Running Programme
Checking stock of cement and additives and verifying in advance that stocks are available for the casing job
ensuring that all running tools are in good, safe condition and are of the correct rating for the job
Make-up torque of casing/liner
Baker-lok shoe as per program
Running speed of casing /liner
Filling casing as it is RIH
Drag in open hole

checking the side door elevators for uneven wear on the bearing surface and correct operation of the door latch, (single joint elevators shall be checked by trial latching before the casing is run. Grinding of elevators is dangerous and forbidden.)
checking spider and elevator slips for size, condition and ability to operate evenly
spider elevators and slips to have rating of casing weight in mud
verifying load capability of drilling line.
removing casing protectors, cleaning and checking threads, (pin and box ends shall be lubricated with the required lubricant and the thread protectors replaced hand tight)
drifting the casing with a proper API drift
measuring and numbering the casing during racking, (each layer shall be measured prior to accepting additional layers of casing)
performing a safety check prior to use of stabbing board. This shall be performed with a checklist developed for each individual installation. The checklist shall be signed by the Drilling Supervisor
installing bow/rigid centralizers
rigging up circulating head, pressure testing cement lines.

physically running the casing
applying the correct make-up torque to the connections, (the make-up torque shall be approved by the Drilling Supervisor prior to casing running)
verification and rig up of handling equipment including the JAM unit
applying casing dope and baker-lok.