METHOD OF SEALING THE SWABBING MEMBER IN PIPE IN THE COURSE OF SWABBING AND DEVICE FOR METHOD EMBODIMENT Russian patent published in 2002 - IPC

Abstract RU 2188936 C2

FIELD: method of swabbing of oil and gas wells. SUBSTANCE: located in gap between swabbing member and pipe is a sealing substance in the form of well fluid removed by swabbing. Said fluid is taken into swabbing member, its pressure and speed of motion in cavities of swabbing member are increased. Then, it is thrown into gap between swabbing member and pipe. Angle of fluid throwing into gap is selected larger than that of rubbing of fluid jet against metal. Device for method embodiment has a body in the form of upper and lower cones connected with each other and having conical cavities and cavity between cones for passage of fluid. EFFECT: excluded wear of swabbing member in the course of swabbing. 2 cl, 1 dwg

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RU 2 188 936 C2

Authors

Dates

2002-09-10Published

2000-09-05Filed