Bottom hole fluid pressure communicating probe and locking mandr

Details Bottom hole fluid pressure communicating probe and locking mandr Bottom hole fluid pressure communicating probe and locking mandr

1977-01-31

1978-01-24

Leppink, James A.

Wells

Combined

166152, 166163, 166264, E21B 3312, E21B 4900

Patent

active

040698653

ABSTRACT:
A well bottom hole fluid pressure measuring structure including external to internal pressure transducer fluid passage communicating structure with pressure balancing on engaged probe members to prevent undesired pressure lift separation of one probe section from another. A locking mandrel, landing nipple and probe structure is provided with positioning of the probe to the lock set state holding the mandrel in a locked state such that fluid pressure differential across the mandrel cannot unlock the probe from the mandrel.

REFERENCES:
patent: 3096823 (1963-07-01), Crowe
patent: 3190360 (1965-07-01), Farley
patent: 3850240 (1974-11-01), Conover

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