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IWCF Well Intervention Snubbing Level 3

Course Outline

  • Homework revision
  • Application SN When snubbing is used
  • Equipment SN The snubbing equipment in different operating environments
  • PRESSURE CONTROL Surface PCE Stack SN PCE required for snubbing operations
  • Primary Barrier Elements SN Primary barrier elements used during snubbing operations
  • 5 Primary Barrier Elements SN Snubbing primary barrier sealing elements and how to operate them correctly
  •  Primary Barrier Elements SN Primary barrier element integrity during snubbing operations
  • Secondary Barrier Elements – BOPs (Ram Type Preventers) SN Secondary barrier elements (snubbing BOPs) used during snubbing operations
  • Secondary Barrier Elements – BOPs (Ram Type Preventers) SN BOP ram configurations for different snubbing operations
  • Secondary Barrier Elements – BOPs (Ram Type Preventers) SN How to operate secondary barrier elements (snubbing BOPs) including annular BOPs and pipe ram/safety BOPs
  • Shearing Devices SN Snubbing shearing devices
  • Other Well Control Devices SN Downhole check valves (back pressure valves) used during snubbing operations
  • Other Well Control Devices SN The need for and the use of alternative and additional internal well control devices in snubbing operations
  • PRESSURE CONTROL (BARRIER ELEMENTS AND ENVELOPES) PRINCIPLES SN Grouping barrier elements into barrier envelopes during snubbing operations
  • Other Operations - PCE Stack SN A snubbing pressurised deployment system
  • Other Operations - PCE Stack SN Changes to ram equipment for different pipe sizes including tapered string
  • Safely repair or replace failed primary barrier element SN The reasons for changing worn elastomers
  • Safely repair or replace failed primary barrier element SN Secondary barrier elements and envelopes for snubbing if a primary barrier element fails
  • Safely repair or replace failed primary barrier element SN Maintaining a double barrier when changing the annular element during intervention
  • PCE Rig Up SN The equipment required for a safe and compatible snubbing PCE rig-up
  • PCE Testing SN PCE pressure tests and function tests with the workstring in place
  • Operational Considerations (with well control consequences) SN The forces on the workstring created by well pressure
  • Operational Considerations (with well control consequences) SN Snubbing pipe in and out of a live well (with square collars/ram to ram)
  • Controlled Well Shut in SN How to shut in the well quickly and safely with or without work-string in the hole
  •  Controlled Well Shut in SN Snubbing shear ram equipment operating limits
  •  Loss of Pressure Control During Well Intervention Operations SN How to identify defects that could affect BOP function during a snubbing operation
  • Loss of Pressure Control During Well Intervention Operations SN What to do if surface equipment fails while the work string is in the well during a snubbing operation
  • Loss of Pressure Control During Well Intervention Operations SN What to do if the slip bowl fails during a snubbing operation
  • Loss of Pressure Control During Well Intervention Operations SN What to do if there is a leak from the surface equipment to the atmosphere during asnubbing operation
  • Loss of Pressure Control During Well Intervention Operations SN What to do if pressure is seen at surface inside the work string during a snubbing operation
  • Loss of Pressure Control During Well Intervention Operations SN What to do if an alarm sounds when the workstring is in the well and you are required to muster in a safe area
  • Loss of Pressure Control During Well Intervention Operations SN What to do if the workstring down hole check valves (back pressure valves) leak while in the hole during a snubbing operation
  • Homework exercises

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