Sealant compositions comprising cement kiln dust and tire-rubber particles and method of use
First Claim
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1. A method comprising:
- providing a sealant composition comprising kiln dust, tire-rubber particles, and water;
determining locations in a wellbore annulus where a hardenable resin or latex is to be placed to provide increased ductility;
intermittently injecting about 2 gallons to about 20 barrels of the hardenable resin or latex into the sealant composition while the sealant composition is being introduced into the well-bore annulus such that the hardenable resin or latex is placed in the locations in the wellbore annulus; and
allowing the sealant composition to set in the well-bore annulus, wherein the set sealant composition forms a hardened mass in the well-bore annulus and the resin or latex forms spaced apart rings within the hardened mass in the locations.
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Abstract
Methods and compositions are provided that relate to sealant compositions comprising cement kiln dust, tire-rubber particles, and water. An embodiment discloses a method comprising: providing a sealant composition comprising cement kiln dust, tire-rubber particles, and water; and allowing the sealant composition to set to form a hardened mass.
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Citations
23 Claims
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1. A method comprising:
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providing a sealant composition comprising kiln dust, tire-rubber particles, and water; determining locations in a wellbore annulus where a hardenable resin or latex is to be placed to provide increased ductility; intermittently injecting about 2 gallons to about 20 barrels of the hardenable resin or latex into the sealant composition while the sealant composition is being introduced into the well-bore annulus such that the hardenable resin or latex is placed in the locations in the wellbore annulus; and allowing the sealant composition to set in the well-bore annulus, wherein the set sealant composition forms a hardened mass in the well-bore annulus and the resin or latex forms spaced apart rings within the hardened mass in the locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of cementing in a subterranean formation comprising:
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preparing a dry blend comprising cement kiln dust and tire-rubber particles; mixing the dry blend with water to form a sealant composition that is pumpable, wherein the cement kiln dust is present in the sealant composition in an amount of at least about 70% by weight of a total amount of cementitious components present in the sealant composition; determining locations in a wellbore annulus where a hardenable resin or latex is to be placed to provide increased ductility; introducing the sealant composition into a well-bore annulus; intermittently injecting about 2 gallons to about 20 barrels of a hardenable resin or latex into the sealant composition while the sealant composition is being introduced into the well-bore annulus such that the hardenable resin or latex is placed in the locations in the wellbore annulus; and allowing the sealant composition to set in the well-bore annulus, wherein the set sealant composition forms a hardened mass in the well-bore annulus and the resin or latex forms spaced apart rings within the hardened mass in the locations. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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Specification