Modified cement composition, preparation and application thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C04B-028/02
C09K-008/473
B82Y-030/00
C04B-014/06
C04B-028/04
C09K-008/487
C09K-008/493
E21B-033/14
C04B-111/40
C04B-111/00
출원번호
US-0452596
(2014-08-06)
등록번호
US-9353308
(2016-05-31)
발명자
/ 주소
Soltanian, Hamid
Mortazavi, Ali Reza
Modjtahedi, Mohammad Javad
Badamaki, Mahmoud Reza
Mesbah, Ali
Khoshniyat, Ali Reza
Kamali, Mohammad Reza
출원인 / 주소
RESEARCH INSTITUTE OF PETROLEUM INDUSTRY
대리인 / 주소
Mannava & Kang, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
Light to ultra-light cement compositions with modified rheological properties. The cement composition includes cement, hydrophobic nano-silica, at least one additive and a sufficient amount of water to make a cement slurry with high compressive strength, low porosity, low free water, and low fluid l
Light to ultra-light cement compositions with modified rheological properties. The cement composition includes cement, hydrophobic nano-silica, at least one additive and a sufficient amount of water to make a cement slurry with high compressive strength, low porosity, low free water, and low fluid loss with a quick thickening time.
대표청구항▼
1. A modified cement composition comprising cement, hydrophobic nano-silica, at least one additive and a sufficient amount of water to make a cement slurry. 2. The modified cement composition of claim 1, wherein the hydrophobic nano-silica includes a surface area of from about 110 m2/g to about 260
1. A modified cement composition comprising cement, hydrophobic nano-silica, at least one additive and a sufficient amount of water to make a cement slurry. 2. The modified cement composition of claim 1, wherein the hydrophobic nano-silica includes a surface area of from about 110 m2/g to about 260 m2/g. 3. The modified cement composition of claim 1, wherein the hydrophobic nano-silica includes a surface area of from about 240 m2/g to about 260 m2/g. 4. The modified cement composition of claim 1, wherein water is present in an amount of from about 30% by weight of blend cement to about 170% by weight of blend cement. 5. The modified cement composition of claim 1, wherein water is present in an amount of from about 30% by weight of blend cement to about 80% by weight of blend cement. 6. The modified cement composition of claim 1, wherein the hydrophobic nano-silica includes a particle size of from about 1 nm to about 100 nm. 7. The modified cement composition of claim 1, wherein the hydrophobic nano-silica includes a particle size of from about 1 nm to about 60 nm. 8. The modified cement composition of claim 1, wherein the hydrophobic nano-silica includes a particle size of from about 1 nm to about 6 nm. 9. The modified cement composition of claim 1, wherein the hydrophobic nano-silica is present in an amount of from about 1% BWOC to about 15% BWOC. 10. The modified cement composition of claim 1, wherein the hydrophobic nano-silica is present in an amount of from about 1% BWOC to about 9% BWOC. 11. The modified cement composition of claim 1, wherein the at least one additive comprises at least one of light weight additive, an anti-foaming agent, a retardant, an accelerator, a dispersant, a fluid loss controlling agent, a surfactant, and a gas migration controlling agent. 12. The modified cement composition of claim 11, wherein the gas migration controlling agent comprises at least one of (i) a composition including at least about 90% SiO2, from about 0.5% to about 2.0% Al2O3, from about 0.2% to about 1.5% Fe2O3, from about 0.1% to about 0.5% CaO, from about 0.1% to about 1.5% Na2O, from about 0.5% to about 2.0% K2O, from about 0.5% to about 2.0% MgO, from about 0.1% to about 0.4% SO3, and from about 0.5% to about 2.5% C and (ii) a composition including at least latex particles. 13. The modified cement composition of claim 1, wherein the cement, hydrophobic nano-silica, and the at least one additive include a particle size to maximize a packing volume fraction. 14. The modified cement composition of claim 1, wherein the cement includes a particle size of from about 10 μm to about 50 μm and the at least one additive includes a particle size of from about 51 μm to about 370 μm. 15. The modified cement composition of claim 1, wherein the additive is present in an amount of from about 0.1% BWOC to about 150% BWOC. 16. The modified cement composition of claim 1 comprising a 24-hour compressive strength of about 4450 psi. 17. A modified cement composition comprising cement, hydrophobic nano-silica, and at least one additive and water to make a cement slurry having a 24-hour compressive strength of about 4450 psi. 18. The modified cement composition of claim 17, wherein water is present in an amount of about 127% or less by weight of blend cement. 19. A modified cement composition comprising cement with a particle size of from about 10 μm to about 50μm, hydrophobic nano-silica with a surface area of from about 110 m2/g to about 260 m2/g, at least one additive with a particle size of from about 51 μm to about 370 μm, and a sufficient amount of water to make a cement slurry. 20. A method for making a well structure resistant to damaging and corrosive fluids and securement of a well casing to a well borehole wall comprising the steps of applying the modified cement composition of claim 1 to a location.
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이 특허에 인용된 특허 (21)
Baker Wilford S. (Thibodaux LA) Harrison James J. (Glenshaw PA), Cement composition and method of cement casing in a well.
Baireddy R. Reddy ; Ronald J. Crook ; Bryan K. Waugh ; Russell M. Fitzgerald ; Dennis W. Gray ; Brent E. Traxel, Early-enhanced strength cement compositions and methods.
Roddy, Craig W.; Chatterji, Jiten; Brenneis, D. Chad; Morgan, Ronnie G., Methods of cementing in subterranean formations using cement kiln cement kiln dust in compositions having reduced Portland cement content.
Harris Kirk L. (Duncan OK) Vinson Edward F. (Duncan OK) Bour Daniel L. (Duncan OK) Brunette Patrick T. (Humble TX) Freyaldenhoven Philip C. (Humble TX) Lee Lindsey D. (Houston TX), Primary cementing.
Ewert David P. (Bakersfield CA) Kundert D. P. (Casper WY) Dahl Jeffrey A. (Duncan OK) Dalrymple E. Dwyann (Duncan OK) Gerke Richard R. (Charlotte NC), Squeeze cementing.
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