• Published: 17 Jun 2011
  • Incident ID: 3263

Failure of Wireline Well Control Equipment During Uncontrolled Gas Release

Cause & Consequence

  • Other
Incident Consequence
Hydrocarbon release

Incident Location

Drilling unit

Incident Activity

Well services / intervention

Incident Info Source

Centrica Energy (formally Venture Production plc)&

Specific Incident Equipment

Slickline Dual BOP Slickline Stuffing Box

Lessons Identified

No details available.

Incident Recommendations


Ensure the slickline stuffing box is checked after redress by the 2nd slickline operator to verify correct make up.

Ensure that each ram on the BOP is function tested on the well with all hoses connected and witnessed.

A design review of the stuffing box assembly and make up procedure.

Development and implementation of a hose management system for hoses that provide hydraulic fluid to safety critical equipment.

Review BOP hydraulic control system. The BOP should have a separate hydraulic supply to open and close each ram.


Re-position the slickline BOP control panel to a position that can be more easily accessed, without the need to cross below the slickline.

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