Set-delayed cement compositions comprising pumice and associated methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B29C-045/02
B29C-039/02
B28B-013/02
B29C-039/00
B28B-001/14
B28B-001/24
C04B-028/18
C04B-040/06
C09K-008/467
C04B-014/16
출원번호
US-0634767
(2015-02-28)
등록번호
US-10195764
(2019-02-05)
발명자
/ 주소
Agapiou, Kyriacos
Pisklak, Thomas Jason
Morgan, Ronnie Glen
Lewis, Samuel Jason
Brothers, Lance Everett
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Rooney, Thomas
인용정보
피인용 횟수 :
0인용 특허 :
114
초록
Disclosed is a method of forming a set cement shape. The method comprises providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; forming the set-delayed cement composition into a shape; and allowing the shaped set-delayed cement composition to set.
대표청구항▼
1. A method of forming a set cement, the method comprising: mixing a set-delayed cement composition with an activator composition to form an activated cement composition;placing the activated cement composition into a cavity of an injection mold, wherein the injection mold comprises a first part and
1. A method of forming a set cement, the method comprising: mixing a set-delayed cement composition with an activator composition to form an activated cement composition;placing the activated cement composition into a cavity of an injection mold, wherein the injection mold comprises a first part and a second part, and wherein the cavity is defined by an interior surface of the first part and by an interior surface of the second part;setting the activated cement composition in the injection mold to from a hardened mass; andseparating the first part of the injection mold from the second part of the injection mold to reveal the hardened mass,wherein the set-delayed cement composition comprises pumice, lime in an amount of about 20% to about 40% by weight of the pumice, water in an amount of about 35% to about 70% by weight of the pumice, and a phosphonic acid set retarder in an amount of about 1% to about 4% by weight of the pumice, wherein the set-delayed cement composition does not contain any additional components that hydraulically set in the presence of water other than the pumice and hydrated lime, wherein the set-delayed cement composition is capable of remaining in a pumpable fluid state for a period of at least one day or longer at room temperature, wherein the activator composition comprises a cement set activator and aluminum sulfate as an accelerator, and wherein after and as a result of the step of mixing, the activated cement composition undergoes said setting so as to form the hardened mass in a time period of about 10 seconds to about 10 minutes. 2. The method of claim 1, wherein the set delayed cement composition further comprises an additional set retarder selected from the group consisting of a phosphate, a phosphonate, a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, an organic acid, a carboxymethylated hydroxyethylated cellulose, a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups, a borate compound, and any mixture thereof. 3. The method of claim 1, wherein the cement set activator is selected from the group consisting of a zeolite, amine, silicate, Group IA hydroxide, Group IIA hydroxide, monovalent salt, divalent salt, nanosilica, polyphosphate, and any combination thereof. 4. The method of claim 1, wherein the set-delayed cement composition further comprises a fiber. 5. The method of claim 1, wherein the set-delayed cement composition further comprises a dispersant selected from the group consisting of a sulfonated-formaldehyde-based dispersant, a polycarboxylated ether dispersant, and any combination thereof. 6. The method of claim 1, further comprising, prior to the placing step, storing the set-delayed cement composition for a period of at least about 1 day. 7. The method of claim 1, wherein the cavity comprises a shape selected from the group consisting of a tile, flooring, underlay, a counter, a backsplash, roofing, a shingle, a shale, weatherboard, façade, cladding, an exterior wall, a partition wall, acoustic insulation, thermal insulation, a soffit, a ceiling, an architrave, a brick, a monolithic shape, and any combination thereof. 8. The method of claim 1, wherein the set-delayed cement composition further comprises a refractory material. 9. The method of claim 1, wherein the set-delayed cement composition further comprises a dye and/or a bead. 10. A method of forming a molded set cement, the method comprising: mixing a set-delayed cement composition with an activator composition to form an activated cement composition;placing the activated cement composition into a cavity of a cast mold, wherein the cast mold comprises a first part and a second part, and wherein the cavity is defined by an interior surface of the first part and by an interior surface of the second part;setting the activated cement composition in the cast mold to from a hardened mass; andremoving the first part of the cast mold to reveal the hardened mass,wherein the set-delayed cement composition comprises pumice, lime in an amount of about 20% to about 40% by weight of the pumice, water in an amount of about 35% to about 70% by weight of the pumice, and a phosphonic acid set retarder in an amount of about 1% to about 4% by weight of the pumice, wherein the set-delayed cement composition does not contain any additional components that hydraulically set in the presence of water other than the pumice and hydrated lime, wherein the set-delayed cement composition is capable of remaining in a pumpable fluid state for a period of at least one day or longer at room temperature, wherein the activator composition comprises a cement set activator and aluminum sulfate as an accelerator, and wherein after and as a result of the step of mixing, the activated cement composition undergoes said setting so as to form the hardened mass in a time period of about 10 seconds to about 10 minutes. 11. The method of claim 10, wherein the set delayed cement composition further comprises an additional set retarder selected from the group consisting of a phosphate, a phosphonate, a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, an organic acid, a carboxymethylated hydroxyethylated cellulose, a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups, a borate compound, and any mixture thereof. 12. The method of claim 10, wherein the cement set activator is selected from the group consisting of a zeolite, amine, silicate, Group IA hydroxide, Group IIA hydroxide, monovalent salt, divalent salt, nanosilica, polyphosphate, and any combination thereof.
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