Rigless Plug & Abandonment

Due to reactive torque during a conventional mechanical milling operation there is a great danger of slipping, which in a worst case can cause damage and prevent the job being done, requiring additional rig mobilisations. By eroding with abrasive water jet from a distance, wellANT can solve this problem. The result is a fast and robust execution of the job. Challenging downhole obstructions such a spinning packer that is unable to be machined by a conventional milling assembly can be eroded by wellANT. Another advantage is the reduced space requirement of the rigless coiled tubing approach, which allows the work to be carried out on much smaller work platforms. Due to the fast and robust erosion process, there are immense time savings & a reduced need for spare parts, which reduces the costs for service providers to one third. wellANT is also capable of 360-degree swarfless section eroding, which provides a fast & cost-effective alternative to section milling. Collapsed & restricted wells typically present problems for conventional milling heads as the contact surface is deformed, while the milling head has a fixed size and shape. The wellANT Nozzle Head can be flexibly configured to erode different surface geometries and restrictions such as defective safety valves.