CREATION AND OPERATION OF UNDERGROUND GAS STORAGE Russian patent published in 2014 - IPC E21F17/16 B65G5/00 

FIELD: oil-and-gas industry.

SUBSTANCE: proposed method comprises construction of wells with exposure of geological structure with pods and pool cap, injection of gas into said structure to force formation water downward from pool cap with prevention of gas escape from the boundaries of geological structure and gas extraction from underground storage (UGS) top section. Note here that availability of superhigh-seam-pressure formation water deposits with dissolved and/or dispersed gas is checked in region with geological structure intended for underground gas storage. Production wells are made with exposure of said deposit, water with dissolved and/or dispersed gas is extracted there through and bypassed into aforesaid geological structure. Gas extraction from UGS is carried out after extraction of dissolved and/or dispersed gas from water and their immiscibility. Water with dissolved and/or dispersed gas is bypassed from superhigh-seam-pressure geological structure is carried out as pressure in UGS decreases owing to gas extraction.

EFFECT: use of dispersed and dissolved gas in abyssal aquifers.

1 ex, 1 dwg