PROCESS OF EXTRACTION OF WORM FLUID FROM WELL AND GEAR FOR ITS REALIZATION Russian patent published in 2002 - IPC

FIELD: oil and gas production. SUBSTANCE: in correspondence with invention heat insulation is put on suction pipe. Suction pipe is run to depth of raised temperature of fluid. Lower part of suction pipe expands in the form of cone to area exceeding clearance area between cone and well column. Holes are drilled in upper part of pipe, beneath face of well-head. Discharge pipe is placed on well-head between face of well-head and holes in suction pipe. Fluid is poured into hole to face of well-head. Discharge pipe is opened and fluid is removed from well. Productivity of extraction of worm fluid is secured by section of pipes and filter in well. Temperature of worm fluid is controlled by depth of setting of suction pipe. EFFECT: potential for extraction of warm fluid of any calculated temperature without pumps. 2 cl, 1 dwg