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A platform for research: civil engineering, architecture and urbanism
Temperature-responsive well cementation cement slurry and preparation method thereof
The invention discloses temperature-responsive well cementation cement slurry which comprises the following components in percentage by mass: 63-67% of oil well cement, 3.3-9.4% of a bidirectional intelligent temperature control material, 27.3-29.4% of mixing water, 0.1% of a dispersing agent and 0.2% of a filtrate reducer, and the sum of the mass percentages of the components is 100%. The invention further discloses a preparation method of the well cementation cement slurry; wherein the temperature-responsive well cementation cement slurry is constructed by taking oil well cement as a base material and a bidirectional intelligent temperature control material as an auxiliary material and being supplemented with other additives. The bidirectional intelligent temperature control material has the characteristics of bidirectional and intelligent temperature control, and realizes reversible, timely and efficient control of the hydration temperature rise of the deepwater natural gas hydrate layer well cementation cement slurry. In the cement hydration acceleration period, the cement slurry hydration temperature rise is reduced through phase change heat absorption of the bidirectional intelligent temperature control material core material, thermal decomposition of metastable state hydrate is avoided, in the deceleration period, the cement slurry temperature reduction rate is reduced through phase change heat release, and therefore, low-temperature mechanical property development is promoted.
本发明公开了一种温度响应性固井水泥浆，包括以下组分：油井水泥63～67％、双向智能控温材料3.3～9.4％、拌合水27.3～29.4％、分散剂0.1％、降滤失剂0.2％，以上组分质量百分比之和为100％。本发明还公开了该固井水泥浆的制备方法，以油井水泥为基料，双向智能控温材料为辅料，辅以其它外加剂构建温度响应性固井水泥浆。双向智能控温材料具有双向、智能控温特性，实现了对深水天然气水合物层固井水泥浆水化温升的可逆、适时及高效控制。水泥水化加速期通过双向智能控温材料芯材的“相变吸热”降低水泥浆水化温升，避免亚稳态水合物受热分解，减速期通过“相变放热”降低水泥浆温度下降速率，促进低温力学性能发育。
Temperature-responsive well cementation cement slurry and preparation method thereof
The invention discloses temperature-responsive well cementation cement slurry which comprises the following components in percentage by mass: 63-67% of oil well cement, 3.3-9.4% of a bidirectional intelligent temperature control material, 27.3-29.4% of mixing water, 0.1% of a dispersing agent and 0.2% of a filtrate reducer, and the sum of the mass percentages of the components is 100%. The invention further discloses a preparation method of the well cementation cement slurry; wherein the temperature-responsive well cementation cement slurry is constructed by taking oil well cement as a base material and a bidirectional intelligent temperature control material as an auxiliary material and being supplemented with other additives. The bidirectional intelligent temperature control material has the characteristics of bidirectional and intelligent temperature control, and realizes reversible, timely and efficient control of the hydration temperature rise of the deepwater natural gas hydrate layer well cementation cement slurry. In the cement hydration acceleration period, the cement slurry hydration temperature rise is reduced through phase change heat absorption of the bidirectional intelligent temperature control material core material, thermal decomposition of metastable state hydrate is avoided, in the deceleration period, the cement slurry temperature reduction rate is reduced through phase change heat release, and therefore, low-temperature mechanical property development is promoted.
本发明公开了一种温度响应性固井水泥浆，包括以下组分：油井水泥63～67％、双向智能控温材料3.3～9.4％、拌合水27.3～29.4％、分散剂0.1％、降滤失剂0.2％，以上组分质量百分比之和为100％。本发明还公开了该固井水泥浆的制备方法，以油井水泥为基料，双向智能控温材料为辅料，辅以其它外加剂构建温度响应性固井水泥浆。双向智能控温材料具有双向、智能控温特性，实现了对深水天然气水合物层固井水泥浆水化温升的可逆、适时及高效控制。水泥水化加速期通过双向智能控温材料芯材的“相变吸热”降低水泥浆水化温升，避免亚稳态水合物受热分解，减速期通过“相变放热”降低水泥浆温度下降速率，促进低温力学性能发育。
Temperature-responsive well cementation cement slurry and preparation method thereof
一种温度响应性固井水泥浆及其制备方法
HUO JINHUA (author) / CHE YUANJUN (author) / ZHANG CHI (author) / LIU HONGCHEN (author) / ZUO WEI (author) / YU BAISONG (author)
2021-06-04
Patent
Electronic Resource
Chinese
IPC:
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
C04B
Kalk
,
LIME
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
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