Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Nano-composite hydrogel for repairing cement sheath micro-cracks, self-repairing cement and preparation method of nano-composite hydrogel and self-repairing cement
The invention discloses cement sheath microcrack repairing nano-composite hydrogel, self-repairing cement and a preparation method, relates to the technical field of functional materials, solves the problem of poor plugging effect of an existing well cementation means, and can be applied to an oil and gas well completion construction process in the field of petrochemical engineering. The preparation method of the hydrogel comprises the following steps: slowly adding a certain amount of nano material into deionized water, and stirring to obtain a uniform mixture; the preparation method comprises the following steps: adding at least two monomers of an anionic monomer, a functional monomer capable of generating anions after hydrolysis and a functional monomer capable of generating cationic groups after hydrolysis in the presence of acidic gas into a mixture, then adding a cross-linking agent and an initiator, and reacting to obtain the nano composite hydrogel. Preparing self-repairing cement, namely drying the cement sheath micro-crack repairing nano-composite hydrogel, crushing into gel powder, adding into cement paste, and stirring to obtain a uniform mixture; and drying the mixture to obtain the self-repairing cement.
一种水泥环微裂缝修复纳米复合水凝胶、自修复性水泥及制备方法，涉及功能材料技术领域，解决了现有固井手段封堵效果不佳的问题，可应用于石油化工领域的油气井完井施工过程中。水凝胶的制备方法：将一定量的纳米材料缓慢加入到去离子水中，搅拌得到均匀的混合物；将阴离子单体、水解后产生阴离子的功能单体、遇酸性气体水解产生阳离子基团的功能单体中的至少两种单体加入到混合物中，再加入交联剂和引发剂，反应后得到纳米复合水凝胶。自修复性水泥制备：将所述水泥环微裂缝修复纳米复合水凝胶干燥处理后打碎成凝胶粉末，加入到水泥浆中，搅拌得到均匀的混合物；将混合物干燥处理，得到自修复性水泥。
Nano-composite hydrogel for repairing cement sheath micro-cracks, self-repairing cement and preparation method of nano-composite hydrogel and self-repairing cement
The invention discloses cement sheath microcrack repairing nano-composite hydrogel, self-repairing cement and a preparation method, relates to the technical field of functional materials, solves the problem of poor plugging effect of an existing well cementation means, and can be applied to an oil and gas well completion construction process in the field of petrochemical engineering. The preparation method of the hydrogel comprises the following steps: slowly adding a certain amount of nano material into deionized water, and stirring to obtain a uniform mixture; the preparation method comprises the following steps: adding at least two monomers of an anionic monomer, a functional monomer capable of generating anions after hydrolysis and a functional monomer capable of generating cationic groups after hydrolysis in the presence of acidic gas into a mixture, then adding a cross-linking agent and an initiator, and reacting to obtain the nano composite hydrogel. Preparing self-repairing cement, namely drying the cement sheath micro-crack repairing nano-composite hydrogel, crushing into gel powder, adding into cement paste, and stirring to obtain a uniform mixture; and drying the mixture to obtain the self-repairing cement.
一种水泥环微裂缝修复纳米复合水凝胶、自修复性水泥及制备方法，涉及功能材料技术领域，解决了现有固井手段封堵效果不佳的问题，可应用于石油化工领域的油气井完井施工过程中。水凝胶的制备方法：将一定量的纳米材料缓慢加入到去离子水中，搅拌得到均匀的混合物；将阴离子单体、水解后产生阴离子的功能单体、遇酸性气体水解产生阳离子基团的功能单体中的至少两种单体加入到混合物中，再加入交联剂和引发剂，反应后得到纳米复合水凝胶。自修复性水泥制备：将所述水泥环微裂缝修复纳米复合水凝胶干燥处理后打碎成凝胶粉末，加入到水泥浆中，搅拌得到均匀的混合物；将混合物干燥处理，得到自修复性水泥。
Nano-composite hydrogel for repairing cement sheath micro-cracks, self-repairing cement and preparation method of nano-composite hydrogel and self-repairing cement
一种水泥环微裂缝修复纳米复合水凝胶、自修复性水泥及制备方法
XU KUN (Autor:in) / ZHANG FAN (Autor:in) / HUANG XIAONA (Autor:in) / BAI YUNGANG (Autor:in) / CHI HUI (Autor:in) / WANG PIXIN (Autor:in)
21.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024
Self-repairing cement-based composite material and preparation method thereof
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023