| 摘要 |
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 wellbor e is provided in which a tubular (420a) having perforations (415) at a predetermined location and a sleeve (425) concentrically covering substantially all of the perforations is expanded into substantial contact with an inner diameter of a tubular (460), such as a casing or a liner. In another aspect, a process of sealing an annular area in a wellbore is provid ed 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 a junction between two tubulars, such as a liner and a casing, or between two liners.
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