Advanced technology from specialist downhole tool provider, Peak Well Systems (Peak), has been instrumental in successfully fishing a parted tubing retrievable safety valve lockout tool for a major Oil Company in a Southern North Sea well. The Downhole Safety Valve (DHSV) is a vital component on the completion that will isolate the surface from wellbore fluids in the event of an emergency.
A fishing package including a high strength high temperature magnet and retrievable overshot performed a text-book recovery of the safety valve lockout tool which had parted downhole in the safety valve at 534 ft well depth.
Video footage established that the ‘bean can’ mechanism (part of the safety valve lockout tool which keeps the flapper permanently in open position) had successfully locked out the Downhole Safety Valve (DHSV). The sub-assembly housing on the bean can had fallen and was expected to be sitting in the 3.688” nipple at 8155ft.