Methods and apparatus for wellbore construction and completion

Details Methods and apparatus for wellbore construction and completion Methods and apparatus for wellbore construction and completion

E - Fixed Constructions

21

B

E21B 33/14 (2006.01) E21B 7/20 (2006.01) E21B 21/00 (2006.01) E21B 43/10 (2006.01)

Patent

CA 2708591

The present invention relates methods and apparatus for lining a wellbore. In one aspect, a drilling assembly having an earth removal member and a wellbore lining conduit is manipulated to advance into the earth. The drilling assembly includes a first fluid flow path and a second fluid flow path. Fluid is flowed through the first fluid flow path, and at least a portion of which may return through the second fluid flow path. In one embodiment, the drilling assembly is provided with a third fluid path. After drilling has been completed, wellbore lining conduit may be cemented in the wellbore.

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