TCP
TCP is the abbreviation of 'Tubing Conveyed Perforating'. It's the process of running perforating guns on tubing, drill pipe, or coil tubing for perforating a required section of the well. Guns can also be run on wireline, but have limited application to low inclination wells. TCP is well suited for perforating vertical, highly deviated, or horizontal wells. It also facilitates underbalanced perforations, which limit the formation damage. TCP guns can be dropped in the well if there is enough rat hole. They can also be left attached to the tubing string and can be recovered later when pulling the tubular out of the well.