METHOD FOR OPERATING A GROUP OF OIL WELLS Russian patent published in 2023 - IPC E21B43/12 

FIELD: oil wells.

SUBSTANCE: method for operating a group of oil wells includes extracting gas from the annulus of a group of wells through a common manifold with gas injection from compression tanks by a "liquid" piston. Gas is injected from compression tanks with a “liquid” piston into pipes coaxially located inside the tubing and passing through the wellhead stuffing box with high-pressure gas pumped through them to provide a flowing method of oil production from wells. Selection of gas-water-oil products from tubing on the surface and its supply to the associated petroleum gas separator from the products in the area of the group of wells and pumping of water-oil products from the separator to the oil collection system by a pump is carried out. At the gas outlet from the separator into the collection manifold, a float regulator of the "gas-oil" interface level is installed, which maintains the level of the "gas-oil" interface in the separator and shuts off the gas outlet when this level is exceeded. When the volume of low-pressure gas supplied to the compressor intake from the annulus of a group of wells is sufficient for well flowing, the entire volume of separated associated gas is diverted to the pressure oil collection system by its ejection by a pump for pumping out water and oil products. In the event of a shortage of low-pressure gas at the compressor inlet, its volume is partially withdrawn from the upper part of the separator to the compressor inlet.

EFFECT: use of excess compressor power to withdraw liquid from a group of oil wells by pumping high-pressure compressed gas into them.

1 cl, 2 dwg