Gas release as blockage cleared from a pressure transmitter blow down line

Cause & Consequence

• Uncontrolled release of a flammable gas or liquid

Incident Location

Fixed Installation

Incident Activity

Production operations

Specific Incident Equipment

Common pressure transmitter and well annuli blow down pipework

Incident Recommendations

• Various improvements are to be made to the design and security of the vent pipework as well as the procedural controls for the venting of well annulus pipework.
• Ensure operator tasks (such as the blowdown of instruments) are covered by an appropriate risk assessment.