E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/26 (2006.01) E21B 33/14 (2006.01) E21B 43/11 (2006.01)
Patent
CA 2693261
Initiation of injection planes in a well. A method of forming at least one generally planar inclusion in a subterranean formation includes the steps of: expanding a wellbore in the formation by injecting a material into an annulus positioned between the wellbore and a casing lining the wellbore; increasing compressive stress in the formation as a result of the expanding step; and then injecting a fluid into the formation, thereby forming the inclusion in a direction of the increased compressive stress. Another method includes the steps of: expanding a wellbore in the formation by injecting a material into an annulus positioned between the wellbore and a casing lining the wellbore; reducing stress in the formation in a tangential direction relative to the wellbore; and then injecting a fluid into the formation, thereby forming the inclusion in a direction normal to the reduced tangential stress.
Cavender Travis W.
Hocking Grant
Schultz Roger
Wendorf Scott F.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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