This video of the month comes from an operation in the North Sea, where EV’s Optis Technology was used to help understand the cause and severity of an unknown restriction in an offshore gas well.
Well access may become restricted in a variety of ways and with different operational consequences. Common causes of tubular restriction are solids deposition such as scaling, pipe deformation, or objects that become stuck in the wellbore. Regardless of the cause, an unexpected downhole restriction adds significant risk to well interventions and can result in extended non-productive time, or even premature abandonment, of valuable assets.
A North Sea operator experienced a sudden drop in production and an increase in A-Annulus pressure in their offshore gas well. On subsequent interventions, an unknown restriction prevented equipment access at approximately 9100ft.
EV’s Optis M125 camera was deployed on slickline with footage acquired to provide a visual inspection of the severity of any identified restrictions. Upon reaching 9,100 feet depth, the high definition downview camera instantly revealed the cause and severity of the restriction. The crystal clear images revealed what appears to be a collapse in the tubing. Watch the video or download the PDF Case Study to find out more.