Patent ID: 9739131
Date: 2017-08-22
CPC Classifications: E21B

Claim:
1. A method for stimulating a treatment zone near a wellbore area in fluid connection with at least one porous zone of a subterranean formation, said method comprising the steps of: generating at least one electrical discharge with two spaced apart electrodes located in a wellbore at a distance from the at least one porous zone, thereby propagating at least one shock wave; fracturing said treatment zone with said at least one shock wave thereby increasing contact areas of paths between the treatment zone and the wellbore; introducing a chemical agent from an upper surface external of the wellbore to a chemical agent introducing unit located inside the wellbore within said treatment zone for increasing the permeability of said treatment zone; and wherein said chemical agent introducing unit comprises a plurality of acid flow channels operable to direct the chemical agent onto a wall of the wellbore.