Apparatus for and a method of expanding tubulars

摘要

Apparatus for and a method of expanding tubulars, and particularly tubulars or a string of tubulars that have one or more per orated portions and one or more non-perforated portions. In one embodiment, the apparatus ( 150 ) includes an inflatable element (e.g. a packer 152 ) that has a shaft ( 156 ) rotatably coupled thereto so that the shaft ( 156 ) can rotate relative to the inflatable element ( 152 ). An expansion cone ( 158 ) is threadedly engaged with a threaded portion ( 156 t) of the shaft ( 156 ) so that it moves along the threaded portion ( 156 t) upon rotation of the shaft ( 156 ) relative to the cone ( 158 ).