Method to reduce movement of a CPF device via a drag-reducing fluid tamp

摘要

A method for minimizing damage to downhole equipment utilized in controlled pulse fracturing (CPF) where a drag reducing fluid tamp is used. Said tamp has a viscosity sufficient to reduce the flowing pressure drop thereby diminishing frictional forces along fluid/solid interfaces. The CPF device is submersed in said tamp. Upon ignition of a CPF device, the upwardly traveling pressure forces the tamp of drag-reducing characteristics to pass the downhole equipment thereby minimizing tool and equipment damage. Afterwards, the pressure is allowed to leak off slowly into the formation.