METHOD FOR CONSTRUCTING AN UNDERGROUND TUNNEL RESERVOIR IN A ROCK SALT RESERVOIR OF LIMITED CAPACITY Russian patent published in 2021 - IPC B65G5/00 

FIELD: mining industry.

SUBSTANCE: invention relates to the construction of underground reservoirs by dissolving rock salt through vertical and vertical-horizontal wells. According to the invention, when implementing the method, at the initial stage, a technological pipe column consisting of two suspended columns is installed on a vertical well, an insoluble agent is injected into the well and a preparatory production is created with dimensions that ensure the linkage of vertical and vertical-horizontal wells. The point of water supply to the production under construction is periodically changed by installing a vertical-horizontal well packer in the process column and then perforating the column in front of the packer. The level of the insoluble agent in the vertical well is periodically raised to prevent the exposure of the roof of the salt layer near the casing shoe.

EFFECT: invention makes it possible to increase the efficiency of the construction of the tank and ensure its large capacity.

1 cl, 2 dwg