Measuring and testing – Borehole or drilling – Downhole test
Patent
1974-03-01
1976-02-24
Queisser, Richard C.
Measuring and testing
Borehole or drilling
Downhole test
E21B 4706
Patent
active
039397050
ABSTRACT:
In accordance with an illustrative embodiment of the present invention, a hollow mandrel mounted in a production string has an eccentrically disposed, lateral recess adapted to receive a measuring instrument. A plug-in contact assembly is located at the lower end of the recess and is connected to an electric cable which is fixed to the outside of the production string. The measuring instrument includes a receptacle assembly on its lower end which is fitted onto the contact assembly during emplacement of the instrument in the recess, thereby to provide in combination with the cable an insulated electric connection between the measuring instrument and the surface. The measuring instrument can be placed into, or removed from, the recess as desired, for example by means of conventional running and pulling tools that are lowered into the production string at the end of a wireline.
REFERENCES:
patent: 2776563 (1957-01-01), Holbert
patent: 3696332 (1972-10-01), Dickson, Jr. et al.
patent: 3744307 (1973-07-01), Harper et al.
Glotin Bernard J. P.
Guimard Andre J.
Moore Stewart F.
Moseley David L.
Queisser Richard C.
Rasco Marcus S.
Schlumberger Technology Corporation
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