METHOD OF DEVELOPING OIL AND GAS DEPOSITS Russian patent published in 2017 - IPC E21B43/16 E21B43/12 E21B43/30 

FIELD: oil industry.

SUBSTANCE: invention relates to the oil and gas industry and may find application in the development of oil and gas deposits where oil production is associated with a high risk of a breakthrough of gas from the gas cap. Method involves drilling of horizontal wells. In a horizontal section of oil wells set casing packers and autonomous or adjustable inflow control devices with the creation in the oil-saturated range of not less than 3 sections isolated from each other. Additionally, in the oil rim drill horizontal injection wells. Through them prior to the beginning of operation of oil wells perform pumping of pressure agent to create in the field of oil production of pressure above the initial reservoir one. Through this form the main fluid flow in oil wells in the lateral direction. Gas is produced through one or more horizontal wells in the gas cap angled or perpendicularly to oil producing wells. Extraction is carried out in volumes that allow to create in the gas cap of funnel of depression over the area of extraction of liquid fluids in the oil portion in the area of oil wells. This helps to maintain the stability of the gas-oil contact with a delay of time of formation of the gas cone. Design of the gas wells provides blind inserts located above the injection wells, with a length of at least one of the distance between oil-producing and injection wells preventing production of fluids in those intervals.

EFFECT: technical result is the intensification of oil production and possibility of control over the movement of gas-oil contact to reduce the intensity of gas coning out of the gas cap in the development of oil rims below the gas cap.

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