Paper: The Efficiencies of Using Coiled Tubing and Downhole Drilling Motors for Small Diameter Wellbore Clean Out Operations

Sloan Petroleum, the operator, had previously attempted to remove intermittent plugs of salt and sand from the non-producing wellbore of a gas well completed through 2 7/8" tubing at 2800 feet. Unsuccessful clean out efforts were made by conventional methods, first by fresh water circulation and then by wireline impacting tools. The operator also considered using reverse equipment and small diameter drill pipe but the cost was prohibitive. The problem was solved by drilling the obstructions with 1 _" coiled tubing, a 1