METHOD TO DEVELOP DEPOSIT OF HYDROCARBON FLUIDS Russian patent published in 2015 - IPC E21B43/243 

FIELD: mining.

SUBSTANCE: method to develop a deposit of hydrocarbon fluids includes construction of a producing horizontal well in the area of the payout rock bed foot, an injection horizontal well above the producing horizontal well, pumping of a coolant into an injection well and bed product bleeding from the producing well. Besides, the horizontal producing well is drilled above the foot of the payout bed, above the horizontal section of the producing well in parallel to it in an identical direction at a distance from the producing well they drill a horizontal injection well. A flow string with a plugged end is lowered into the injection well with holes made at the end section for pumping of working fluids. The pipe section with holes at two sides is limited by packers. Then a heated working fluid is pumped into the injection well via a pipe with holes into the payout bed, and the bed is heated to a temperature of ignition of the fluid contained in the bed. At the same time the fluid is diluted with an increase of its fluidity. An inert working agent is replaced with an oxygen-containing working fluid, and hydrocarbon fluid is ignited in the bed. Monitoring and maintaining conditions of the burn front maintenance and spread, they heat the bed between the wells, in the area of the horizontal section of the producing well they increase the section temperature to the temperature of the hydrocarbon fluid fluidity state, and the heated product is withdrawn. At the same time, using a temperature monitoring device, they monitor the intensity of the burning process and the bed heating in a well-to-well and adjacent space, and the bed temperature is maintained within the necessary limits by the variation of the supplied working agent flow rate. After complete exhaustion of the payout bed area within the first pitch of the packer installation they temporarily stop pumping of the working agents, the pipe with holes and two limiting packers is moved in the direction of the producing well head at least by the length of the distance between the packers. The packers are put in the working condition, and they continue mining of the next area of the payout bed, working through the entire horizontal section of the injection well.

EFFECT: increased fluid payout of the bed and production of hydrocarbon energy resources.

2 cl, 1 dwg