Apparatus for placement and retrieval of downhole gauges

Details Apparatus for placement and retrieval of downhole gauges Apparatus for placement and retrieval of downhole gauges

1983-03-31

1985-03-26

Leppink, James A.

Wells

Combined

166250, E21B 2302, E21B 4706

Patent

active

045067317

ABSTRACT:
The present invention comprises an apparatus for placement and retrieval of gauges employed to measure temperature, pressure and other parameters in a well bore. The apparatus comprises a gauge receptacle means incorporated in a pipe string including a substantially tubular outer housing having a substantially tubular inner housing substantially coaxially therein, the inner housing being supported in the outer housing by a plurality of support rings having longitudinally extending apertures therethrough. The inner housing has a landing nipple profile cut therein, whereby a locking mandrel having a gauge holder secured thereto may be run into the pipe string on a wireline, and locked into the inner housing after which the wireline may be retracted. The locking mandrel may also be subsequently unlocked and retrieved with the gauge holder by wireline.

REFERENCES:
patent: 3918747 (1975-11-01), Putch
patent: 4051897 (1977-10-01), Kingelin
patent: 4149593 (1979-04-01), Gazda et al.
patent: 4248300 (1981-02-01), Braddick

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