Method to reduce movement of a cpf device via a...

Details Method to reduce movement of a cpf device via a... Method to reduce movement of a cpf device via a...

E - Fixed Constructions

21

B

166/22

E21B 43/27 (2006.01) C09K 8/62 (2006.01) E21B 43/263 (2006.01)

Patent

CA 2030743

ABSTRACT 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.

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