Orienting whipstock seat, and method for seating a whipstock

Details Orienting whipstock seat, and method for seating a whipstock Orienting whipstock seat, and method for seating a whipstock

2005-11-29

2005-11-29

Bagnell, David (Department: 3672)

Wells

Means for guiding insertable element laterally of well axis

Secured in operative position by movable means engaging well...

C166S117500, C166S207000, C166S206000, C166S050000

Reexamination Certificate

active

06968896

ABSTRACT:
The present invention provides an apparatus and methods for seating a whipstock. The apparatus comprises an expandable seat, or nipple, configured to receive a whipstock. The seat is run into a cased wellbore, and is set by expanding it into frictional contact with the inner surface of the casing. Thereafter, a whipstock is seated onto the seat. The seat includes a keyway configured to receive an orientation member extending from the whipstock. In this manner, the orientation of the seat can be determined. An orientation member of the whipstock can be adjusted to properly orient the face of the whipstock in the seat, and the whipstock lowered onto the seat so that it automatically seats in the proper direction. The whipstock then serves as a diverter tool for drilling a lateral wellbore such as a horizontal well.

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