This video comes from an operation in the North Sea, where an operator utilised EV’s Optis technology to help overcome a complex fishing challenge and successfully abandon a well
Whether the remnants of a damaged cable or a lost bottom hole assembly, downhole fish can cause significant impact on well productivity and operating time. Conventional fish retrieval methods are based on ‘guestimates’, and often result in complicated and time-consuming wireline interventions, or workover – or even abandonment – if unsuccessful.
An operator in the North Sea experienced multiple fish in hole. The well was scheduled to be plugged and abandoned, but with the presence of multiple fish in the hole, the operator faced significant challenges in isolating pressurized reservoirs and proceeding safely with the operation.
EV’s Optis R125® camera was deployed on E-Line with both downview and side view video footage acquired to provide quantitative, real-time evaluation of fish location, orientation and status. The Optis® R125 camera was provided as the ideal option, as it acquires real-time footage at 25 frames per second.
Initially, the operator decided to run the Optis R125 camera through a drill-pipe stinger and found the camera to hang up above the area of interest. The hold-up was seen to be a sharp change in well trajectory, suspected to be caused by wellbore deformation. Watch the video, or download the case study PDF below to find out more.