METHOD OF EXPLOITATION OF SUBSURFACE STORAGE OF NATURAL GAS Russian patent published in 2017 - IPC B65G5/00 E21F17/16 

FIELD: oil and gas industry.

SUBSTANCE: invention is targeted at the exploitation of the subsurface storages of gas (SSG). In the SSG, at which in the crestal area of the collector layer the producing wells are constructed, the deep disposal wells in the provinces of the collector layer and the control wells in the intermediate area between the producing and the deep disposal wells, produce the cycling pumping of the natural gas to the storage with creating of its buffer and active volumes and the separation of the natural gas. During the process of the SSG exploitation, the carbon dioxide is pumped to its lower section in the overcritical aggregative state and the buffer volume of the natural gas is replaced by it.

EFFECT: improving the quality of the stored natural gas at the expense of the lowering the risk of creation of the rich zones of combination the natural gas and the carbon dioxide, effective exploitation of the subsurface storages of gas at the expense of the replacing the part of the buffer volume of the stored natural gas into the carbon dioxide based on the reasoned choice of the aggregative state of the carbon dioxide.

12 dwg