Investigation Report
Gas Bubble Dislodges Gas Buster During Coiled Tubing Operations
08-04-2006 12:00 G01898 ST/148 Choke Stem, Gas Buster, Piping
- BSEE
- Investigation Report
- Unknown
- Human factorsMechanical failureWell control
- Well intervention
- Process pipework and pipelinesValve
- Stop-work authority
- Upstream oil and gas
- Offshore installation
Summary
Investigation of damage during coiled tubing operations at South Timbalier Platform B. Hydrate removal used a glycol–water mixture. A gas bubble passed through the return line and choke, dislodging the gas buster. The report identifies slow choke-operator response and failure to stop work as causes; no injuries or pollution occurred.
Classifications: Human factors; human performance; ergonomics.
Classifications: Mechanical failure; equipment failure.
Classifications: Well control; kick control; loss of well control.
Classifications: Well intervention; workover; well servicing.
Classifications: Process pipework and pipelines; process piping.
Classifications: Valve; valves.
Classifications: Stop-work authority; stop work; stop-work intervention.
Classifications: Upstream oil and gas; oil and gas extraction; upstream petroleum.
Classifications: Offshore installation; offshore platform; offshore rig.