METHOD OF DEVELOPMENT OF HYDROCARBON FLUID DEPOSIT Russian patent published in 2015 - IPC E21B43/243 

FIELD: mining.

SUBSTANCE: method of development of hydrocarbon fluid deposit involves construction of production horizontal well in the area of bottom of productive formation of the rock, injection horizontal well above the production horizontal well, pumping of heat carrier into the injection well and extraction of products of formation from the production well. The horizontal production well is drilled above the bottom of productive formation, above the horizontal section of the production well, parallel to it, in the opposite direction at a distance from the production well the horizontal injection well is drilled. Into the injection well the pipe string with plugged end and with holes executed on the end section for injection of working agents is lowered, the pipe section with holes is limited from two ends with packers. The heated working agent is injected into the productive formation. The productive formation is heated up to the temperature of ignition of intraformational hydrocarbonic fluid. The inert working agent is substituted by oxygen-containing working agent, the hydrocarbon fluid is ignited in formation, while tracing and maintaining conditions of preservation and propagation of the front of combustion, the formation is heated between wells. In the area of horizontal section of the production well the formation section temperature is heated to the temperature of state of fluidity of hydrocarbon fluid, and the heated product is withdrawn. Using the temperature monitoring unit the intensity of burning process and formation heating in crosshole and adjacent space are monitored, and maintenance of formation temperature within required range is performed by change of flow rate of supplied working agent. After full development of the zone of productive formation within the first step of installation of packers the injection of working agents is temporarily stopped, the pipe with holes and with two limiting packers is moved towards the wellhead of the production well minimum to the distance between packers. Packers are brought into a working condition and the development of the following zone of productive formation is continued, while developing the whole horizontal section of the injection well.

EFFECT: increase of fluid productive capacity of formation, including high-viscosity oils and bitumens.

2 cl, 1 dwg