METHOD FOR RECOVERY OF HYDROCARBON RAW MATERIAL FROM BED OF DEPOSIT Russian patent published in 1998 - IPC

FIELD: oil, gas, and gas-condensate production industry. SUBSTANCE: this increases inflow of hydrocarbons to wells due to involvement in operation of entire well plugging zone. According to method, well is driven, and hydrocarbons are drawn from down-hole zone of productive bed until well production is reduced or stopped. Then, driving is effected from well upwards at angle to well axis and with changing direction of driving around well. Driving is gradually withdrawn from well in spiral path. Driving is removed beyond zone of plugging with viscous hydrocarbon depositions. Driving is effected by means of working member with center of gravity displaced relative to its geometric center. Working member has gas-generator and nozzles which at one side of working member are oriented along normal to its axis. At other side of working member, nozzles are either parallel to aforesaid axis or create acute angle to it. EFFECT: high efficiency. 1 cl, 5 dwg