Gelation inhibiting retarders for highly reactive calcium silicate based binder compositions and methods of making and using same
First Claim
1. A method of servicing a wellbore comprising:
- placing in the wellbore a composition comprising a non-API compliant reactive calcium silicate based hydraulic binder, wherein the non-API compliant reactive calcium silicate based hydraulic binder, when mixed with water alone, has a thickening time of less than 90 minutes, at least one gelation inhibiting retarder, and a set modifier; and
allowing the composition to set.
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Accused Products
Abstract
A method of servicing a wellbore comprising placing in the wellbore a composition comprising a non-API compliant reactive calcium silicate based hydraulic binder and at least one gelation inhibiting retarder, and allowing the composition to set. A method of servicing a wellbore comprising placing in a wellbore a cement composition comprising an industrial waste product selected from the group consisting of Class C Fly ash, cement kiln dust, and combinations thereof and a gelation inhibitor, and allowing the composition to set. A method of controlling the thickening time of a cementitious composition comprising contacting a material having greater than 15 wt. % of tricalcium aluminate and tetracalcium aluminoferrite with a gelation inhibitor comprising a alkylbenzene sulfonic acid, at least one methallyl sulfonic acid monomer; at least one copolymerizable nonionic monomer, and at least one copolymerizable olefinically unsaturated carboxylic acid monomer.
65 Citations
30 Claims
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1. A method of servicing a wellbore comprising:
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placing in the wellbore a composition comprising a non-API compliant reactive calcium silicate based hydraulic binder, wherein the non-API compliant reactive calcium silicate based hydraulic binder, when mixed with water alone, has a thickening time of less than 90 minutes, at least one gelation inhibiting retarder, and a set modifier; and allowing the composition to set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A method of servicing a wellbore comprising:
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placing in a wellbore a cement composition comprising a cementitious material consisting essentially of an industrial waste product selected from the group consisting of Class C Hy ash, cement kiln dust, and combinations thereof, wherein the cementitious material, when mixed with water alone, has a thickening time of less than 90 minutes and a gelation inhibitor; and allowing the composition to set.
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29. A method of servicing a wellbore comprising:
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controlling the thickening time of a cementitious composition by contacting a material having from about 20% to about 40% of tricalcium aluminate and tetracalcium aluminoferrite with a gelation inhibitor comprising an alkylbenzene sulfonic acid, at least one methallyl sulfonic acid monomer, at least one copolymerizable nonionic monomer, and at least one copolymerizable olefinically unsaturated carboxylic acid monomer; placing the composition in the wellbore; and allowing the composition to set. - View Dependent Claims (30)
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Specification