INTER-SECTION CONNECTION OF SUBMERSIBLE ELECTRIC CENTRIFUGAL PUMPING UNITS Russian patent published in 1998 - IPC

Abstract RU 2116519 C1

FIELD: oil industry; production of oil and other formation fluids by means of submersible electric centrifugal pumping units. SUBSTANCE: inter- section flanged joint contains additionally limiting members in form of detachable metal half-rings mounted in bore for fitting the bolts used for connection of flange with housing. One end surface of half-rings is supported by bead of bore and other, by bolt heads. Half-rings are interconnected by means of fasteners and provision is made for locking them. EFFECT: avoidance of unscrewing of bolts and drop of parts of unit into well. 2 dwg

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RU 2 116 519 C1

Authors

Lotfullin B.T.

Dates

1998-07-27—Published

1997-05-15—Filed