公开(公告)号：CA2674350A1

公开(公告)日：2010-02-01

申请号：CA2674350

申请日：2009-07-29

Applicant: WEATHERFORD LAMB

Inventor： MCINTIRE SCOTT ,  STULBERG MICHAEL ,  SOKOL JONATHAN P

IPC: E21B23/00 ,  E21B7/08 ,  E21B21/01

Abstract: A method and apparatus for retrieving an assembly having a whipstock and a n anchor from a wellbore. A method of retrieving an assembly having a whipstoc k coupled to an anchor from a wellbore may comprise the steps of releasing the whipstock from the anchor in the wellbore, re-engaging the whipstock to the anchor, and retrieving the whipstock with the anchor from the wellbore. An apparatus for use in a wellbore may comprise a whipstock, a latch coupled to the whipstock, an d an anchor operable to be selectively retrieved from the wellbore using the latc h.

公开(公告)号：CA2674350C

公开(公告)日：2013-03-26

申请号：CA2674350

申请日：2009-07-29

Applicant: WEATHERFORD LAMB

Inventor： SOKOL JONATHAN P ,  MCINTIRE SCOTT ,  STULBERG MICHAEL

IPC: E21B23/00 ,  E21B7/08 ,  E21B21/01

Abstract: A method and apparatus for retrieving an assembly having a whipstock and an anchor from a wellbore. A method of retrieving an assembly having a whipstock coupled to an anchor from a wellbore may comprise the steps of releasing the whipstock from the anchor in the wellbore, re-engaging the whipstock to the anchor, and retrieving the whipstock with the anchor from the wellbore. An apparatus for use in a wellbore may comprise a whipstock, a latch coupled to the whipstock, and an anchor operable to be selectively retrieved from the wellbore using the latch.