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

1985-04-29

1987-05-26

Suchfield, George A.

Wells

Processes

Electric current or electrical wave energy through earth for...

166 651, 166 66, 166250, 166271, 166308, E21B 4326, E21B 4900

Patent

active

046677380

ABSTRACT:
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 series of constant pulses having different durations into the rock formation to determine its characteristic impedance. Once the characteristic impedance has been determined, a second pulse having an amplitude and duration matching this characteristic impedance is discharged into the rock formation to alter its dynamic characteristics. A third pulse is then discharged into the rock formation to cause its fracture.

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