DEVELOPMENT METHOD OF HIGH-VISCOSITY OIL DEPOSIT Russian patent published in 2011 - IPC E21B43/24 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil industry and can be used during production of high-viscosity heavy and bituminous oils. Methods involves fuel pumping through vertical injection wells and air pumping through injection well with horizontal section located above horizontal section of production well to the value exceeding the value of air breakthrough, arrangement of in-situ combustion and extraction of product through production well with horizontal shaft, periodic pumping of water in volumes allowing the support of formation combustion. Production well is equipped with temperature sensors throughout the length of horizontal section. Vertical injection wells are equipped with inner fuel supply pipe and their tube space is used for water supply and closed from below with packer with valve. Valve has the possibility of keeping the fluid column in the well. Fluid supply through the valve is controlled so that almost equal temperature of products can be maintained throughout the length of horizontal section of production well.

EFFECT: reducing the costs for development of high-viscosity oil deposit without decreasing production rate, increasing development efficiency of high-viscosity oil deposit, and enlarging the volume of extracted product.

2 dwg