Whipstock assembly with hydraulically set anchor

Details Whipstock assembly with hydraulically set anchor Whipstock assembly with hydraulically set anchor

E - Fixed Constructions

21

B

E21B 7/08 (2006.01) E21B 7/06 (2006.01) E21B 23/04 (2006.01)

Patent

CA 2051724

ABSTRACT OF THE DISCLOSURE A one-trip whipstock assembly incorporating a hydraulically set anchor which includes an interlock for maintaining the anchor in its set position upon interruption of hydraulic pressure. The anchor is connected to the lower end of the assembly which also includes a whipstock for diverting cutting tools and a locator sub for positioning the assembly in the cased well bore. The whipstock assembly is designed to be run into the well using a running string or a mill attached to the upper end of the whipstock in order to locate and set the whipstock and mill the casing in only one trip.

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