METHOD OF DEVELOPMENT OF DEPOSIT OF SUPERHIGH VISCOSITY OIL WITH WATER-BEARING INTERVALS Russian patent published in 2019 - IPC E21B43/24 E21B7/04 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil industry and can be used in the thermal method of extracting high-viscosity oil and/or bitumen in the presence of aquifers or water-oil contact. Method of development of deposits includes the construction of horizontal producing and located above injection wells, the injection of coolant with a specific weight below the specific gravity of produced water in the injection well and the selection of products from the producing well. Horizontal well sections are equipped with liner filters. Before withdrawal, the deposit is heated by steam injection into both horizontal wells until a hydrodynamic connection is obtained with the creation of a steam chamber. Conduct research monitoring the water content of the production well. With an increase in the water content of the deposit more than profitability levels perform isolation of aquifers. To do this, stop the operation of production and injection wells. Additional horizontal well is drilled. Well is placed above the upper well by 5±1 m. Heat carrier is pumped into an additional well. Injection well is transferred to the selection of products. Lowermost well is also launched to take fluid to eliminate the increase in production watering in the well transferred to selection.

EFFECT: increasing the efficiency of development and reducing the level of produced water.

1 cl, 1 dwg