OIL-WELL SUCKER-ROD PUMP DRAINING DEVICE Russian patent published in 2003 - IPC

Abstract RU 2202709 C1

FIELD: oil producing industry. SUBSTANCE: proposed device has housing provided with through hole made in radial section over intake valve. Through hole communicates passage channel of housing with annulus and it is stopped by draining device. The latter contains rupture and shutoff members. Draining device is made in form of union turned on thread into union through hole. Rupture member is made as weakened cross-section of union. Shutoff member is made in form of breakable diaphragm pressed to end face of union by union nut. EFFECT: improved reliability, simplified repair of pump. 1 dwg

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RU 2 202 709 C1

Authors

Zakharov B.S.

Bogomol'Nyj E.I.

Drachuk V.R.

Zav'Jalov M.P.

Dates

2003-04-20—Published

2002-05-31—Filed