Yielding of hydrated lime in set-delayed and other settable compositions
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-033/13
E21B-021/06
C09K-008/46
C04B-028/02
C09K-008/467
C04B-028/04
C04B-028/06
C04B-028/08
C04B-028/14
C04B-028/34
B28C-005/34
B28C-007/02
C04B-028/10
E21B-033/14
출원번호
US-0910886
(2013-09-09)
등록번호
US-9869155
(2018-01-16)
국제출원번호
PCT/US2013/058711
(2013-09-09)
국제공개번호
WO2015/034531
(2015-03-12)
발명자
/ 주소
Pisklak, Thomas Jason
Lewis, Samuel J.
Agapiou, Kyriacos
Bou, Peter James
Otieno, Pauline Akinyi
Brothers, Lance Everett
Morgan, Ronnie Glen
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Roddy, Craig W.
인용정보
피인용 횟수 :
0인용 특허 :
13
초록▼
Methods and systems directed to controlling the rheology of settable compositions in subterranean formations. Embodiments include a method of controlling the rheology of a set-delayed cement composition, the method comprising: providing a set-delayed cement composition comprising water, pumice, hydr
Methods and systems directed to controlling the rheology of settable compositions in subterranean formations. Embodiments include a method of controlling the rheology of a set-delayed cement composition, the method comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; shearing the set-delayed cement composition in an amount sufficient to substantially prevent solids settling; storing the set-delayed cement in a pumpable fluid state for at least 1 day; activating the set-delayed cement composition; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation. Additional methods and systems are also provided.
대표청구항▼
1. A method of controlling a rheology of a set-delayed cement composition, the method comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder, wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3:1
1. A method of controlling a rheology of a set-delayed cement composition, the method comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder, wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3:1 to about 5:1, wherein the set retarder is present in an amount of about 0.01% to about 2% by weight of the pumice;shearing the set-delayed cement composition until a log-log-slope value is about 1.05 or lower to substantially prevent solids settling;storing the set-delayed cement composition in a pumpable fluid state for at least 1 day;activating the set-delayed cement composition;pumping the set-delayed cement composition in a fluid state into a subterranean formation; andallowing the set-delayed cement composition to set in the subterranean formation. 2. The method of claim 1 wherein the set-delayed cement composition is sheared by recirculating the set-delayed cement composition with a circulating pump. 3. The method of claim 2 wherein the set-delayed cement composition is recirculated at a rate between about 300 gallons per minute to about 800 gallons per minute. 4. The method of claim 1 wherein the log-log-slope is a slope of a shear stress vs. shear rate curve in log-log space. 5. The method of claim 1 wherein the set-delayed cement composition is sheared until the log-log-slope value is about 1.05 or lower and until the hydrated lime has yielded; wherein the lime has yielded when at least one condition is met; the at least one condition being selected from the group consisting of: the set-delayed cement composition has a residual stress increase of about 2 to about 20 fold, the set-delayed cement composition has an increase in volumetric average apparent viscosity of about 35%, and the set-delayed cement composition further has a reduction in the log-log-slope of about 25%; wherein the log-log-slope is a slope of a shear stress vs. shear rate curve in log-log space. 6. The method of claim 1 wherein the set-delayed cement composition is essentially free of water viscosifying suspension additives. 7. The method of claim 1 wherein the set retarder comprises at least one retarder selected from the group consisting of a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, a salt, 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. 8. 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 a combination thereof. 9. The method of claim 8 wherein the dispersant is the polycarboxylated ether dispersant, and the polycarboxylated ether dispersant is present in an amount of about 0.01% to about 2% by weight of the pumice. 10. The method of claim 1 wherein the activating the set-delayed cement composition step comprises adding a cement set activator to the set-delayed cement composition and the cement set activator comprises at least one cement set activator selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, monovalent salt, sodium sulfate, nanosilica, polyphosphate, sodium hexametaphosphate, and any combination thereof. 11. A method of controlling a rheology of a settable composition, the method comprising: providing a settable composition comprising water, hydrated lime, and a material selected from the group consisting of a Portland cement, a pozzolanic cement, a gypsum cement, a soil cement, a calcium phosphate cement, a high-alumina content cement, a silica cement, a high-alkalinity cement, a slag cement, cement kiln dust, pumice, and mixtures thereof, wherein the material is present in a material-to-hydrated-lime weight ratio of about 3:1 to about 5:1;shearing the settable composition until a log-log-slope value is about 1.05 or lower to substantially prevent solids settling;pumping the settable composition in a fluid state into a subterranean formation; andallowing the settable composition to set in the subterranean formation. 12. The method of claim 11 wherein the settable composition is sheared by recirculating the settable composition with a circulating pump. 13. The method of claim 12 wherein the settable composition is recirculated at a rate between about 300 gallons per minute to about 800 gallons per minute. 14. The method of claim 11 wherein the log-log-slope is a slope of a shear stress vs. shear rate curve in log-log space. 15. The method of claim 11 wherein the settable composition is sheared until the log-log-slope value is about 1.05 or lower and until the hydrated lime has yielded; wherein the lime has yielded when at least one condition is met; the at least one condition being selected from the group consisting of: the settable composition has a residual stress increase of about 2 to about 20 fold, the settable composition has an increase in volumetric average apparent viscosity of about 35%, and the settable composition further has a reduction in the log-log slope of about 25%; wherein the log-log-slope is a slope of a shear stress vs. shear rate curve in log-log space. 16. The method of claim 11 wherein the settable composition is essentially free of water viscosifying suspension additives. 17. A system for controlling a rheology of a set-delayed cement composition, the system comprising: a set-delayed cement composition comprising: water;pumice;hydrated lime, wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3:1 to about 5:1; anda set retarder, wherein the set retarder is present in an amount of about 0.01% to about 2% by weight of the pumice; andmixing equipment configured to shear the set-delayed cement composition until a log-log-slope value is about 1.05 or lower to substantially prevent solids settling in the set-delayed cement composition; andpumping equipment configured to pump the set-delayed cement composition in a fluid state into a wellbore. 18. The system of claim 17 wherein the mixing equipment comprises a circulating pump and wherein the circulating pump recirculates the set-delayed cement composition at a rate between about 300 gallons per minute to about 800 gallons per minute. 19. The system of claim 17 further comprising storage equipment for storage of the set-delayed cement composition; and a cement set activator for activation of the set-delayed cement composition, and wherein the cement set activator comprises at least one cement set activator selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, monovalent salt, sodium sulfate, nanosilica, polyphosphate, sodium hexametaphosphate, and any combination thereof. 20. A method of controlling a rheology of a set-delayed cement composition, the method comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, a set retarder, and a dispersant, wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3:1 to about 5:1, wherein the set retarder is present in an amount of about 0.01% to about 2% by weight of the pumice, and wherein the dispersant is a polycarboxylated ether dispersant, and the polycarboxylated ether dispersant is present in an amount of about 0.01% to about 2% by weight of the pumice;shearing the set-delayed cement composition until a log-log-slope value is about 1.05 or lower to substantially prevent solids settling;storing the set-delayed cement composition in a pumpable fluid state for at least 1 day;activating the set-delayed cement composition;introducing the set-delayed cement composition into a subterranean formation; andallowing the set-delayed cement composition to set in the subterranean formation.
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이 특허에 인용된 특허 (13)
Carpenter Robert B. ; Bloys J. Benjamin ; Johnson David L., Cement composition.
Naegele Phillip N. (Duncan OK) Dant Ronald E. (Duncan OK) Dieball Kent J. (Duncan OK) Stephenson Stanley V. (Duncan OK) Padgett Paul O. (Duncan OK), Cement mixing and pumping system and method for oil/gas well.
Pearson C. Mark (Plano TX) Zeren Fevzi (Plano TX) Abou-Sayed Ahmed S. (Plano TX), Method and system for determining fluid pressures in wellbores and tubular conduits.
Adams Sally L. (Pittsburgh MA) Cook Michael M. (Boxford MA) Martin Fred David (McMurray PA), Well cementing composition having improved flow properties containing a polyamido-sulfonic additive.
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