Pump down tool and check valve

Details Pump down tool and check valve Pump down tool and check valve

E - Fixed Constructions

21

B

166/2, 254/30

E21B 34/06 (2006.01)

Patent

CA 1218294

Case No. 6828 PUMP DOWN TOOL AND CHECK VALVE Abstract of the Disclosure A device for use during operation of a borehole survey probe or the like. The device is attachable to a flexible cable which in turn is con- nected to the survey probe, and the device includes an outer sealing or swab member and an interior valve. The valve and sealing member cooperate during pumping of the survey probe down through a conduit, and the valve opens during retrieval of the survey probe so that fluid in the conduit passes through the device as the survey probe is removed.

469426

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