Method of monodiameter well construction

Details Method of monodiameter well construction Method of monodiameter well construction

E - Fixed Constructions

21

B

E21B 43/10 (2006.01) E21B 29/00 (2006.01)

Patent

CA 2606620

A method and apparatus for completing a well through expansion of tubing enable construction of the well or at least part of the well with a mono- diameter or substantially no inside diameter reduction with subsequent casings/liners. Prior to lining an extended section of the borehole, forming a discrete enlarged portion of the extended section with a relatively larger inner diameter than the remainder of the extended section of the borehole occurs where overlapping tubing sections are to be located. For some embodiments, an open-hole clad expanded in the enlarged portion of the extended section of the borehole provides an inner surface for receiving a bottom of a first expanded liner and optionally a top of a second expanded liner.

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