Directional coupling sensor for ensuring complete...

Details Directional coupling sensor for ensuring complete... Directional coupling sensor for ensuring complete...

E - Fixed Constructions

21

B

E21B 43/119 (2006.01) E21B 47/09 (2006.01)

Patent

CA 2299175

A directional collar locator sensor distinguishes between an outer casing collar from an inner pipe coupling deep within a wellbore by selectively positioning a semi-spherical magnetic shield about a magnetic sensor. The collar locator has virtually no moving parts and facilitates conventional logging, perforating multiple completion wellbores, and splitting of casing collars and inner pipe couplings. When used in perforating a well casing, the directional sensor ensures that the perforating gun is pointed in the right direction to produce complete perforations as opposed to just producing dents.

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