Responsibilities during drilling operations (drilling supervisor, drilling contractor, toolpusher, driller, drilling superintendent).
Drilling Supervisor
The Drilling Supervisor shall provide prior to any particular operation written instructions to the Drilling Contractor Toolpusher and service personnel. These instructions shall include but are not limited to:
- general sequence of programme events
- potential hazards
- contingency procedures in the event of occurrence of identified potential problems
- drilling parameters to be used
- safety and environmental issues.
Drilling Contractor
It is the responsibility of the Drilling Contractor to drill the well to the correct programme specifications and to provide a wellbore that is ‘fit for purpose’, subject to the terms of the contract.
The Drilling Contractor shall not compromise safety or well integrity in order to reach the drilling objectives.
Toolpusher
The Drilling Supervisor shall approve and provide written instructions to the Contractor Toolpusher prior to any particular operation.
Driller
The Drilling Contractor Driller, who is responsible for the rig crew, shall carry out the drilling operations written instructions prepared by the Drilling Supervisor. He shall ensure that drilling and associated operations are carried out with due regard to optimum drilling, wellbore integrity and rig crew safety, eg., pressure control and crew personal safety.
Drilling Supervisor and Drilling Supertintendent
The quality of work shall be monitored and controlled primarily by the Drilling Supervisor, with support from the Head of Offshore / Onshore Operations, to ensure that the well objectives are not compromised.
Meetings shall be held every morning with the well site personnel (Drilling Supervisor, Contractor Tool Pusher, service personnel) to plan the operational aspects relevant to:
- safety issues
- the forward programme
- out of service equipment which may impact drilling operations
- scheduling equipment/materials availability
- weather forecast and supply boat/craft movement
The Drilling Supervisor shall ensure that he is informed immediately of any significant deviation from normal operational conditions e.g. increasing levels of overpull, increasing levels of back-ground gas, slow ROP, gain or loss, change in direction parameters, abnormal formation, drop / rise in press….etc.
The Drilling Supervisor shall ensure that all key rig personnel are familiar with rig equipment and standard drilling practices e.g. well control drills, flow checks. All key personnel must be certified with updated well control, H2S and safety courses.