# US 7,607,484 B2 · Foamed cement compositions comprising oil-swellable particles and methods of use > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,484 B2 - Document ID: US7607484B2 - Status: Granted - Kind: B2 - Application number: 12/263,800 - Filed: 2008-11-03 - Published: 2009-03-19 - Granted: 2009-10-27 - Earliest claimed: 2005-09-09 - Assignees: Halliburton Energy Services, Inc. - Inventors: Craig W. Roddy; Jiten Chatterji; Bobby J. King; D. Chad Brenneis - Web page: https://patentgrep.com/patent/US7607484B2 ## CPC - C09K 8/473: Density reducing additives, e.g. for obtaining foamed cement compositions - C04B 38/10: by using foaming agents (C04B38/02 takes precedence){or by using mechanical means, e.g. adding preformed foam} - C09K 8/487: Fluid loss control additives; Additives for reducing or preventing circulation loss - Y02W 30/91: Use of waste materials as fillers for mortars or concrete - C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE - C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE - Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT ## Abstract Of the many compositions and methods provided herein, an embodiment of a method comprises introducing a foamed cement composition into a subterranean formation, wherein the foamed cement composition comprises: a cementitious component; a foaming and stabilizing surfactant; an oil-swellable particle; gas; and water; and allowing the settable composition to set in the subterranean formation. Another embodiment of a method comprises introducing a foamed cement composition into an annulus between a pipe string and a subterranean formation, wherein the foamed cement composition comprises comprising: a cementitious component; a foaming and stabilizing surfactant; an oil-swellable particle; gas; and water; and allowing the settable composition to set in the annulus. An embodiment of a foamed cement composition comprises a cementitious component, a foaming and stabilizing surfactant, a swellable particle, gas, and water. ## Claims ### Claim 1 A method comprising: introducing a foamed cement composition into a subterranean formation, wherein the foamed cement composition comprises: a cementitious component, a foaming and stabilizing surfactant, an oil-swellable particle comprising a block copolymer of styrene butadiene rubber, gas, and water; and allowing the foamed cement composition to set in the subterranean formation. ### Claim 2 (depends on 1) The method of claim 1 wherein the foaming and stabilizing surfactant comprises at least one surfactant selected from the group consisting of: a mixture of an ammonium salt of an alkyl ether sulfate, a cocoamidopropyl betaine surfactant, a cocoamidopropyl dimethylamine oxide surfactant, sodium chloride, and water; a mixture of an ammonium salt of an alkyl ether sulfate surfactant, a cocoamidopropyl hydroxysultaine surfactant, a cocoamidopropyl dimethylamine oxide surfactant, sodium chloride, and water; a hydrolyzed keratin; a mixture of an ethoxylated alcohol ether sulfate surfactant, an alkyl or alkene amidopropyl betaine surfactant, and an alkyl or alkene dimethylamine oxide surfactant; and an aqueous solution of an alpha-olefinic sulfonate surfactant and a betaine surfactant. ### Claim 3 (depends on 1) The method of claim 1 wherein the oil-swellable particle is present in the foamed cement composition in an amount of about 1% to about 27% by weight of the cementitious component. ### Claim 4 (depends on 1) The method of claim 1 wherein the cementitious component comprises cement kiln dust. ### Claim 5 (depends on 1) The method of claim 1 wherein the cementitious component comprises hydraulic cement. ### Claim 6 (depends on 1) The method of claim 1 wherein the cementitious component comprises cement kiln dust in an amount of about 1% to about 75% by weight of the cementitious component. ### Claim 7 (depends on 1) The method of claim 1 wherein the cement composition comprises at least one additive selected from the group consisting of fly ash, slag, metakaolin, shale, and zeolite. ### Claim 8 A method comprising: introducing a foamed cement composition into an annulus between a pipe string and a subterranean formation, wherein the foamed cement composition comprises: a cementitious component, a foaming and stabilizing surfactant, an oil-swellable particle comprising a block copolymer of styrene butadiene rubber, gas, and water; and allowing the foamed cement composition to set in the annulus. ### Claim 9 (depends on 8) The method of claim 8 comprising introducing the pipe string into a well bore that penetrates the subterranean formation. ### Claim 10 (depends on 8) The method of claim 8 wherein the oil-swellable particle is present in the foamed cement composition in an amount of about 1% to about 27% by weight of the cementitious component. ### Claim 11 (depends on 8) The method of claim 8 wherein the cementitious component comprises hydraulic cement. ### Claim 12 (depends on 8) The method of claim 8 wherein the cementitious component comprises cement kiln dust. ### Claim 13 (depends on 8) The method of claim 8 wherein the cementitious component comprises cement kiln dust in an amount of about 1% to about 75% by weight of the cementitious component. ### Claim 14 A method comprising: introducing a foamed cement composition into a subterranean formation, wherein the foamed cement composition comprises: a cementitious component, a foaming and stabilizing surfactant, an oil-swellable particle comprising at least one swellable elastomer selected from the group consisting of acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, choloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene block copolymer, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene vinyl acetate copolymer, fluorosilicone rubber, silicone rubber, and combinations thereof, gas, and water; and allowing the foamed cement composition to set in the subterranean formation. ### Claim 15 (depends on 14) The method of claim 14 wherein the allowing the foamed cement composition to set comprises allowing the foamed cement composition to set in an annulus between the subterranean formation and a pipe string. ### Claim 16 (depends on 14) The method of claim 14 wherein the oil-swellable particle is present in the foamed cement composition in an amount of about 1% to about 27% by weight of the cementitious component. ### Claim 17 (depends on 14) The method of claim 14 wherein the cementitious component comprises cement kiln dust. ### Claim 18 (depends on 14) The method of claim 14 wherein the cement composition comprises at least one additive selected from the group consisting of fly ash, slag, metakaolin, shale, and zeolite. ### Claim 19 A method comprising: preparing a cement composition; foaming the cement composition; enhancing at least one mechanical property of the cement composition by including an oil swellable particle comprising a block copolymer of styrene butadiene rubber in the cement composition in an amount sufficient to enhance at least one mechanical property of the cement composition; introducing the cement composition into a subterranean formation; and allowing the cement composition to set in the subterranean formation. ### Claim 20 (depends on 19) The method of claim 19 wherein the cement composition introduced into the subterranean formation comprises: a cementitious component, a foaming and stabilizing surfactant, the oil-swellable particle, gas, and water. ### Claim 21 (depends on 20) The method of claim 20 wherein the cementitious component comprises cement kiln dust. ### Claim 22 (depends on 20) The method of claim 20 wherein the cement composition comprises at least one additive selected from the group consisting of fly ash, slag, metakaolin, shale, and zeolite. ### Claim 23 (depends on 19) The method of claim 19 wherein the allowing the cement composition to set comprises allowing the cement composition to set in an annulus between the subterranean formation and a pipe string. ### Claim 24 (depends on 19) The method of claim 19 wherein the cement composition introduced into the subterranean formation comprises the oil-swellable particle in an amount of about 1% to about 27% by weight of the cementitious component.