METHOD FOR DEVELOPMENT OF HYDROCARBON FLUID DEPOSITS Russian patent published in 2016 - IPC E21B43/243 

FIELD: mining.

SUBSTANCE: method of development of deposit of hydrocarbon fluids provides parallel construction in one direction with two outputs on the surface of horizontal production well in the area of bottom of productive formation and injection horizontal with two outputs on the surface of the well above production horizontal well. Into injection well with two mouths two pipe strings with plugged ends are lowered and made on end sections of holes for pumping of working agents. Sections of each tube with holes on both sides are restricted with packers. Via pipe with holes, pumping of heated inert working fluid to productive formation, productive formation is heated to self-ignition temperature of in-situ hydrocarbon fluid. Inert working agent is replaced by the working agent containing said hydrocarbon fluid in the formation. Tracking and maintaining situ combustion the section between the wells is heated in the area of horizontal section of production well up to temperature of hydrocarbon fluid fluid state and heated product is extracted. Using the temperature control unit the heating reservoir in interwell and surrounding space is controlled, while maintaining formation temperature within required frames is performed by changing flow of supplied oxygen-containing working agent. After complete exhaustion zone of productive formation within the first step of installation of packers, pumping of working agents is temporarily stopped, pipe with holes are moved and two limiting packers in the direction of the heads of production well are moved by the distance not less than length of the distance between packers. Packers are activated and a next zone of productive formation is developed, thus processing the whole horizontal section of injection well.

EFFECT: higher efficiency of fluid extraction.

5 cl, 1 dwg, 1 ex