Method and apparatus for monitoring downhole temperatures

Details Method and apparatus for monitoring downhole temperatures Method and apparatus for monitoring downhole temperatures

1992-12-04

1995-05-16

Williams, Hezron E.

Measuring and testing

Borehole or drilling

Downhole test

E21B 4706

Patent

active

054150370

ABSTRACT:
A method and apparatus for determining the temperature in a wellbore is disclosed. The apparatus is lowered into a wellbore to a desired depth and logged over a selected interval. At least one first heat flux and temperature sensor contacts the wellbore wall. At least one second heat flux and temperature sensor is maintained in contact with the drilling fluid. Comparison of sensor responses provides an accurate determination of the wellbore wall temperature, and a determination of the quality of sensor-wellbore wall contact.

REFERENCES:
patent: 3668927 (1972-06-01), Howell et al.
patent: 3808889 (1974-05-01), Rawson et al.
patent: 3874232 (1975-04-01), Hardison
patent: 4779994 (1988-10-01), Diller et al.
patent: 4811598 (1989-03-01), Dillier et al.
patent: 4881406 (1989-11-01), Coury
patent: 5121993 (1992-06-01), Carrigan et al.

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