Sealing member for use in well shafts

Details Sealing member for use in well shafts Sealing member for use in well shafts

F - Mech Eng,Light,Heat,Weapons

16

J

277/50

F16J 15/52 (2006.01) E21B 33/127 (2006.01) F16J 15/46 (2006.01)

Patent

CA 1113136

ABSTRACT OF THE DISCLOSURE A sealing member for use in well shafts. The sealing member comprises a hose which is mounted over a tube sleeve and is sealed at its ends relative thereto. At least one pipe carrying pressure water passes through said sleeve. The pressure water pipe is connected with a space between the sleeve and the hose, and the connection means includes a valve arranged to allow water to flow from the pressure water pipe to said space but not in the opposite direction. Through this arrangement the pressure water inside the space between the hose and the sleeve keeps said hose in sealing engagement against the wall of the well shaft.

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