Specially developed dimple tool with camera locks open faulty downhole safety valves
The tool failed twice when the beer can was present, forcing the operator to fish it. Finally, the operator decided to set a new DHSV.
Welltec then performed a Systems Integration Test (SIT) to qualify the tool and prove its effectiveness. The SIT confirmed that the new solution fit its designed purpose and proved that the tool could apply enough force to deform the flow tube without damaging it. The SIT also showed that the tool could correctly and reliably correlate its position within the tubing.
Welltec has since successfully run this new dimple tool for the client in two wells. In both cases, the tool solved the issue by locking open these faulty DHSVs.
Welltec developed this innovative solution to solve this specific problem for the client but ensured that the tool was universal and could be used on different types of DHSVs.
After the first operation, Welltec further developed the tool and added a downhole camera to confirm correct dimpling in the same run. This development saves the client time and costs by avoiding two additional runs with cameras.
The Well Key Dimple Tool is designed to permanently lock open surface controlled subsurface safety valves in a single run.
Welltec Release Device (WRD®) is a simple tool which adds versatility and risk reduction to the operation. It provides predetermined locations in the toolstring where it can be parted, should it become stuck.