The platform was located on an Oil and Gas Producing Field in the Irish Sea.
The Oil producing Wells no longer free flow, thus an ESP is used to lift the oil.
As with all electrical motors, ESP´s also have a limited life span. When a failure is encountered the solution often involves a full Workover of the Well.
On this platform the wells were located on a separate bridge linked Wellhead platform, thus lending itself to HWO very well. The only other alternative would be to utilise a Jack-up in.
The objective was to pull the current completion before making up and running the new like for like completion.