Tubing-Conveyed Perforating Guns in Deviated Wellbores

Application

The Baker Hughes Tubing-Conveyed Perforating (TCP) system in deviated wellbores is ideally suited for low-side or directional perforating. The combination of a tubing swivel and orienting lugs ensures the proper orientation of the gun system. Low side capability permits perforating of long horizontal sections that have excessive leak-off during gravel pack operations.

Running In

The orienting lugs and tubing swivel facilitate gun orientation to the low side of the hole as the TCP work string is run into the hole.

Firing Guns

Nitrogen or a lightweight completion fluid is circulated into the hole to establish the desired underbalance. Tubing pressure is then applied and bled off to activate the firing heads, detonating the perforating guns.

Well Flowing

The well is flowed through the ported sub and up the tubing. Production is then monitored at the surface.

Stabilizing the Well

The packer bypass is opened to allow reverse circulation through the bypass and flow ports to stabilize the well.