An operator in central Africa needed to perform a workover on an oil producer that involved pipe recovery. Prior to this operation, the operator needed to take preliminary steps to establish circulation and facilitate retrieval of the tubing.

Welltec® was selected as the primary solution for this operation because of its proven track record and innovative interventions. The client needed to perform several operations, including a tubing punch to deliver a maximal pumping rate through the punch and a clean cut to enable retrieval. The Welltec® Puncher and a Well Cutter® could be run in combination to optimize the operation and make the most efficient use of rig time. Furthermore, the Well Cutter’s ability to produce a clean cut while the tubing was under compression, made it easier to grapple the lower part of the well/casing.

E-line conveyed mechanical services were run in combination, as planned.

The Welltec Puncher created six uniform holes in a single run, and the cutter provided an efficient and clean cut to the pipe. To reduce operational expenditure, rigless intervention was carried out.

The expected circulation rate was achieved, and the completion was safely retrieved without overpull.

Welltec’s innovative tools and solutions led to several efficiencies for this operation. Performing the operation on e-line enabled the client to opt for a rigless intervention, saving both time and cost. Combining the Welltec Puncher and Well Cutter enabled both the punching and cutting stages to be completed in a single run.

Completing these two tasks in a single run ultimately saved 24 hours of operational time for the client, meeting primary goals faster than alternative solutions. The expected circulation rate was achieved, and the completion was safely retrieved without overpull.