Responsibilities for the implementation, supervision, verification and control of drilling operations are listed in the following table:
|
Action |
Execution |
Quality Control |
|
Provide input to the preparation of the Drilling Programme |
Drilling Supervisor |
Operations Engineer |
|
Prepare the drilling / completion / workover programme |
Operations Engineer |
Senior Operations Engineer Head of Onshore/Offshore Operations |
|
|
|
Approval : Drilling Manager |
|
Prepare amendments to Drilling Programme |
Operations Engineer |
Senior Operations Engineer Head of Onshore/ Offshore Operations |
|
Equipment selection |
Operations Engineer |
Senior Operations Engineer Head of Onshore/ Offshore Operations |
|
Call-Out Company supplied equipment/personnel |
Operations Engineer Drilling Supervisor |
Head of Onshore/ Offshore Operations |
|
Call-Out Contractor supplied equipment/personnel |
Drilling Contractor |
Drilling Supervisor |
|
Conduct drills |
Drilling Contractor |
Drilling Supervisor |
|
Inspect tubulars (not casing) |
Drilling Contractor |
Drilling Supervisor |
|
Inspect and test BOP |
Drilling Contractor |
Drilling Supervisor |
|
Monitor well trajectory |
Operations Engineer Drilling Supervisor |
Operations Engineer Senior Operations Engineer |
|
Monitor drilling parameters |
Drilling Supervisor |
Operations Engineer |
|
Monitor drilling costs versus plan |
Drilling Supervisor |
Operations Engineer |
|
BHA design, bit selection and hydraulics |
Drilling Supervisor |
Operations Engineer |
|
Measure and tally tubulars |
Drilling Contractor |
Drilling Supervisor |
|
Cement operations |
Cement Contractor |
Drilling Supervisor |
|
Safe and proper operation of rig equipment |
Drilling Contractor |
Drilling Supervisor |
|
Leak-off/ liner lap/ casing tests |
Drilling Supervisor |
Operations Engineer |
|
Well control |
Drilling Supervisor Mud logger Drilling Contractor |
Drilling Supervisor |
|
Decide when to conduct check trips |
Drilling Supervisor/ Drilling Contractor |
Operations Engineer |
|
Carry out flow checks |
Drilling Contractor |
Drilling Supervisor |
|
Maintain Trip Sheets in and out of the hole |
Drilling Contractor & Mud Loggers |
Drilling Supervisor |
|
Final Well Report |
Operations Engineer |
Senior Operations Engineer |
|
Formation evaluation |
Petroleum Engineer Logging Contractor |
Petroleum Engineering |
|
Monitor formation being drilled |
Geologists/ Petrophysicists |
Petroleum Engineering |
|
Monitor mud weight |
Drilling Contractor / Mud Contractor / Mud Logger |
Drilling Supervisor Contractor Tool Pusher |
|
Report drilling problems |
Drilling Contractor |
Drilling Supervisor Operations Engineer |
|
Maintain adequate mud, chemical, LCM & cement stocks |
Drilling Supervisor / Mud & Cementing Contractor/Logistics |
Drilling Supervisor Operations Engineer |
|
Equipment/Tools/Water Ordering |
Drilling Supervisor |
Senior Operations Engineer Head of Onshore/Offshore Operations |
|
Hand over well |
Drilling Supervisor/ Drilling Contractor |
Operations Engineer Senior Operations Engineer |
|
Final well reports, sketches with well head |
Operations Engineer |
Senior Operations Engineer Head of Onshore/Offshore Operations |