E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/22 (2006.01) E21B 7/04 (2006.01) E21B 17/20 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2550207
A method and apparatus for conducting earth borehole operations include a reel (28) of continuous coiled casing (30), and an injector (20) for moving the coiled casing. The bottomhole assembly including at least a motor (54) and a bit (56) is connected to the free end of the coiled casing, and injected into the earth while circulating fluid through the coiled casing to form a drilled earth borehole having a borehole wall. The coiled casing drill string may be retrieved from the borehole, the bottomhole assembly removed, and the coiled casing again injected into the borehole, then suspended from a wellhead assembly. After severing the coiled casing, a bonding agent such as a cementitious material may be injected into the suspended coiled casing and into the annulus between the coiled casing and the borehole.
Benge Carl J.
Charron Randolph M.
Wood Thomas D.
1243939 Alberta Ltd.
Benge Carl J.
Charron Randolph M.
Goodwin Mckay
Wood Thomas D.
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