Apparatus for installing condition-sensing means in subterranean

Details Apparatus for installing condition-sensing means in subterranean Apparatus for installing condition-sensing means in subterranean

1979-12-07

1981-07-21

Leppink, James A.

Wells

With heating, refrigerating or heat insulating means

Electrical heater in well

166250, 166277, E21B 4706

Patent

active

042792991

ABSTRACT:
The present invention is directed to an apparatus for installing strain gages or other sensors-transducers in wellbores penetrating subterranean earth formations. The subject apparatus comprises an assembly which is lowered into the wellbore, secured in place, and then actuated to sequentially clean the wellbore or casing surface at a selected location with suitable solvents, etchants and neutralizers, grind the surface to a relatively smooth finish, apply an adhesive to the surface, and attach the strain gages or the like to the adhesive-bearing surface. After installing the condition-sensing gages to the casing or earth formation the assembly is withdrawn from the wellbore leaving the sensing gages securely attached to the casing or the subterranean earth formation.

REFERENCES:
patent: 2286075 (1942-06-01), Evans
patent: 2599405 (1952-06-01), Mennecier
patent: 2608002 (1952-08-01), Bielstein
patent: 2826077 (1958-03-01), Walker
patent: 3301337 (1967-01-01), Vaughn et al.
patent: 3750748 (1973-08-01), Kinley et al.

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