Apparatus and method for well repair operations

Details Apparatus and method for well repair operations Apparatus and method for well repair operations

E - Fixed Constructions

21

B

166/10

E21B 43/11 (2006.01) E21B 43/119 (2006.01) E21B 47/06 (2006.01) E21B 47/10 (2006.01)

Patent

CA 1065246

ABSTRACT OF THE DISCLOSURE Flow channels behind the casing in a well are plugged by detecting a circumferential temperature anomoly on the casing, perforating in the direction of such anomoly, and introducing cement into the perforations. The apparatus for locating and perforating into a flow channel includes a sensitive temperature sensing assembly capable of detecting temperature differences as low as 0.01°F, and an attached perforating gun having a fixed orientation in relation to the temperature sensing assembly.

289430

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