TECHNOLOGY FOR THE DEVELOPMENT OF A HIGHLY PERMEABLE RESERVOIR BED SATURATED WITH GAS AND UNDERLAIN BY RESERVOIR WATER Russian patent published in 2021 - IPC E21B43/12 E21B43/32 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry and can be used in the construction of horizontal production wells for the development of highly permeable gas-condensate-saturated reservoirs with underlying bottom water. At the construction stage of the well, after the descent of the flow string, the shank is suspended, consisting of a filter in the remote zone and a blind pipe in the near zone at the entrance to the formation, a swollen column cementing packer is installed between them, at the initial stage of reservoir development, the near zone of the shank is fixed with cement mortar. At a late stage of development, the fastening is carried out without cementing with the separation of the column space by a swelling packer. In the initial stage of well operation, gas reserves are extracted from a remote zone, before reaching the water cone of the filter part, perforation and launch of the blind part of the shank are performed with simultaneous gas extraction from the reservoir by both sites. When the critical value of the water content of the products is reached, a clogging/water-shielding solution is injected into the remote zone along the borehole, a packer plug is installed in front of the filter to separate the watered and untreated parts of the horizontal trunk, and gas is taken through the near zone.

EFFECT: development of reserves of deposits is ensured without advanced breakthroughs of reservoir water, the completeness of gas and condensate extraction is increased, and the management of the process of reserves development over time is ensured.

1 cl, 8 dwg