Page 61 - Well Control for Completions and Interventions

52 Well Control for Completions and Interventions

• Must immediately notify the client company representative and con-
tact drilling company Toolpusher.
• Implement the well kill or contingency procedure.
• Direct supervision of the drill crew during the well control
operations.
Mud engineer (if present) or assistant driller:
• Responsible for the fluid system—preparing LCM, weighting up or
cutting brine weight as required.
Mud logger:
It is unlikely that mud loggers would be on location during a
completion or workover operation. However, if they were present they
can assist with:
• Share responsibility with driller for early kick detection.
• Monitor and record parameters during well control operation
including:
• Times
• Shut in pressure
• Fluid loss rate—cumulative losses
• Pump strokes (cumulative and SPM)
• Pump pressure
• Casing pressure
• Gas
• H 2 S
• Pit volume.
If no mud logger is present, the person in charge of the well control
operation will have to allocate these tasks to other responsible personnel.
Drilling contractor Subsea Engineer (where relevant):
• Available for consultation at all times during the well control
operation.
• Responsible for the supervision of the subsea BOP system operation.

1.1.11.2 Responsibilities during Interventions on live wells
(independent of rig support)
During intervention operations on live wells, the person in charge of well
control will normally be a well intervention (well service) supervisor.
Some operations, especially in remote locations, are supervised by the
senior member of the intervention vendor crew.