METHOD FOR DEVELOPMENT OF HYDROCARBON FLUID DEPOSITS Russian patent published in 2017 - IPC E21B43/243 

FIELD: mining.

SUBSTANCE: invention relates to mining. In method of hydrocarbon fluids deposit development, involving construction of horizontal production well, over productive formation bottom parallel to first horizontal production well at same depth and in same direction with it second horizontal production well is drilled, between them in parallel and equidistant to them at same depth and in opposite direction injection horizontal well is drilled. Pipe string with plugged end and made on end section holes for working agents pumping is lowered into injection well. Pipe section with holes at both ends is limited by packers, based on oil-bearing rock properties. Performing heated working fluid injection into productive formation. Heating productive formation to in-situ hydrocarbon fluid self-ignition temperature, performing inert working fluid replacement with oxygen-containing working fluid, igniting hydrocarbon fluid in the formation. Tracking and keeping condition of combustion front maintaining and propagation, heating formation between wells, in production wells horizontal section area, bringing section temperature to hydrocarbon fluid fluidity state temperature and performing heated product extraction. At that using temperature and pressure control device performing control over combustion process intensity and formation heating in wells interwell and bottom-hole zones, while formation temperature maintaining with required limits is performed by supplied working fluid temperature and flow rate changing. After complete exhaustion of area of productive stratum within first step of installation of packers pumping of working agents is temporarily stopped, moving pipe with holes and with two limiting packers is moved towards injection well mouth for not less than length of distance between packers, packers are brought to working state and development of productive formation next area is continued, thus whole horizontal section of injection well is developed. Pumping of waterproofing sealant is made in spent interval.

EFFECT: technical result is increase in extracted fraction of hydrocarbon fluid contained in rock productive formation, increased volume of hydrocarbon energy sources production, fluids, enabling initiation, maintenance, monitoring and control of productive formation hydrocarbon fluid in-situ combustion and rocks heating.

1 cl, 3 dwg, 1 ex