Well cementing material
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IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0555859
(2009-09-09)
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등록번호 |
US7892348
(2011-02-08)
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우선권정보 |
FR-2004-4 10330(2004-09-29) |
발명자
/ 주소 |
- Lecolier, Eric
- Rivereau, Alain
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출원인 / 주소 |
- Institut Francais du Petrole
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대리인 / 주소 |
Antonelli, Terry, Stout & Kraus, LLP.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
The present invention relates to a formulation of a high-performance foamed cement material, comprising:at least one hydraulic binder,microparticles whose grain size ranges between 0.1 and 30 μm, whose proportion ranges between 15% and 50% by mass in relation to the mass of hydraulic binder,mineral
The present invention relates to a formulation of a high-performance foamed cement material, comprising:at least one hydraulic binder,microparticles whose grain size ranges between 0.1 and 30 μm, whose proportion ranges between 15% and 50% by mass in relation to the mass of hydraulic binder,mineral particles whose grain size ranges between 1 and 500 μm, whose proportion ranges between 10% and 35% by mass in relation to the mass of hydraulic binder, the proportion of particles being lower than the proportion of microparticles,a hydrosoluble polymer thinning agent whose proportion ranges between 0.1% and 8% by mass in relation to the mass of hydraulic binder,water whose proportion is at most 40% by mass in relation to the mass of hydraulic binder,a foaming agent whose proportion ranges between 0.1% and 10% by mass in relation to the mass of hydraulic binder.
대표청구항
▼
The invention claimed is: 1. A method of producing a foamed cement slurry, wherein the following stages are carried out:mixing a powder with water comprising a hydrosoluble polymer thinning agent so as to obtain a cement slurry, the powder comprising a hydraulic binder, microparticles, mineral parti
The invention claimed is: 1. A method of producing a foamed cement slurry, wherein the following stages are carried out:mixing a powder with water comprising a hydrosoluble polymer thinning agent so as to obtain a cement slurry, the powder comprising a hydraulic binder, microparticles, mineral particles, and a foam stabilizing additive, the hydraulic binder being selected from the group consisting of class G Portland cements, class H Portland cements, aluminous cements whose alumina content is at least above 30% by mass, and sulfoaluminous cements, the microparticles being selected from the group consisting of microsilica particles and silico-aluminate particles, of grain size ranging between 0.1 and 30 μm, whose proportion ranges between 15% and 50% by mass in relation to the mass of hydraulic binder, the mineral particles having a grain size ranging between 1 and 500 μm with a D50 comprised between 35 μm and 210 μm, with a proportion ranging between 10% and 35% by mass in relation to the mass of hydraulic binder, the proportion of particles being lower than the proportion of microparticles, the hydrosoluble polymer thinning agent having a proportion ranging between 0.1 and 8% by mass in relation to the mass of hydraulic binder, the foam stabilizing additive being a hydrosoluble associative polymer comprising hydrophobic units, the foam stabilizing additive proportion ranging between 0.1% and 2% by mass in relation to the mass of hydraulic binder,introducing a foaming agent in the cement slurry, wherein the foaming agent is a surfactant compound in a proportion ranging between 0.1% and 3% by mass in relation to the mass of hydraulic binder,pumping the cement slurry comprising the foaming agent, andinjecting a gas into the cement slurry comprising the foaming agent and stirring the mixture of slurry and of gas so as to foam the slurry and to obtain a foamed cement slurry.
이 특허에 인용된 특허 (4)
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Villar John,NOX ; Baret Jean-Francois,FRX ; Michaux Michel,FRX ; Dargaud Bernard,FRX, Cementing compositions and applications of such compositions to cementing oil (or similar) wells.
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Stiles David A. ; de Rozieres ; deceased Jean Mari Guy, Compositions and methods for cementing a well.
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Tinsley John M. (Duncan OK) Watters Larry T. (Duncan OK), Lightweight cement and method of cementing therewith.
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Chatterji Jiten ; King Bobby J. ; Onan Patty L. ; Onan David D., Resilient well cement compositions and methods.
이 특허를 인용한 특허 (1)
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Muthusamy, Ramesh; Deshpande, Abhimanyu Pramod; Patil, Rahul Chandrakant; Lewis, Samuel J., Alkyl polyglycoside derivative as biodegradable foaming surfactant for cement.
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