E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 17/08 (2006.01) E21B 29/00 (2006.01) E21B 43/10 (2006.01)
Patent
CA 2492981
A monobore wellbore (68) and method for completing the same are disclosed. The monobore wellbore (68) comprises a first casing (74) having an inner diameter (76) and a lap region (80). A second casing (90) is positioned within the wellbore (70) by passing through the first casing (74) such that an uphole end of the second casing (90) is positioned within the lap region (80) of the first casing (74). After downhole expansion, the second casing (90) has an inner diameter (114) that is substantially the same as the inner diameter (76) of the first casing. The uphole end of the second wellbore is coupled to the lap region (80) of the first casing (74) to create a mechanical connection and a hydraulic seal, thereby creating the monobore wellbore (68).
Halliburton Energy Services Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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