Oil and gas production enhancement using electrical means

Details Oil and gas production enhancement using electrical means Oil and gas production enhancement using electrical means

E - Fixed Constructions

21

B

320/1, 166/21

E21B 43/26 (2006.01)

Patent

CA 1226209

-11- ABSTRACT OF THE DISCLOSURE Disclosed is a method and apparatus for enhancing oil and/or gas production from a subterranean well by using high energy, short duration electrical pulses to fracture underground rock formations containing entrapped oil or gas. The invention obviates the large power requirements of the prior art devices by generating a first series of constant voltage pulses having different durations into the rock formation to determine its characteristic impedance. Once the characteristic impedance has been determined, a second series of pulses having amplitudes and durations matching this characteristic impedance is discharged into the rock formation to cause its fracture.

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