Orientation and locator system

Details Orientation and locator system Orientation and locator system

E - Fixed Constructions

21

B

E21B 7/10 (2006.01) E21B 23/01 (2006.01)

Patent

CA 2383421

An orientation and locator system including a receiver sub disposed in and installed with a casing string in the borehole. The receiver sub has azimuth and depth profiles for positively locating a predetermined position within the borehole. The profiles are within the inside diameter of the casing string and do not restrict the flowbore of the casing. The orientation and locator system further includes a locator sub attached to a well tool and adapted to engage the casing receiver sub to orient and locate the well tool within the borehole for conducting a well operation. The locator sub has an alignment key and a plurality of dogs for engaging the azimuth and depth profiles, respectively. Further, the locator sub may pass completely through the receiver sub en route to another receiver sub located in the casing string further downhole. The locator sub and receiver sub are configured such that they may be engaged whether the locator sub is passing upstream or downstream through the casing string.

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