Method and apparatus for downhole tubular expansion

Details Method and apparatus for downhole tubular expansion Method and apparatus for downhole tubular expansion

2006-06-06

2006-06-06

Bagnell, David (Department: 3672)

Wells

Expansible anchor or casing

Expansible casing

C166S206000, C166S382000, C166S384000

Reexamination Certificate

active

07055597

ABSTRACT:
The present invention provides apparatus and methods for expanding tubulars in a wellbore. In one aspect, a process of sealing an annular area in a wellbore is provided in which a tubular having perforations at a predetermined location and a sleeve concentrically covering substantially all of the perforations is expanded into substantial contact with an inner diameter of a tubular, such as a casing or a liner. In another aspect, a process of sealing an annular area in a wellbore is provided in which a tubular having perforation at a predetermined location and a sleeve concentrically coving substantially all of the perforations is expanded into substantial contact with a junction between two tubulars, such as a liner and a casing, or between two liners.

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U.K. Office Action, Application No. GB0318178.1, dated Jun. 29, 2004.

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