Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thermal tackifying copolymer cement paste high-temperature stabilizer and preparation method thereof
The invention discloses a thermal tackifying copolymer cement paste high-temperature stabilizer and a preparation method thereof. The thermal tackifying copolymer cement paste high-temperature stabilizer is a cross-linked copolymer formed by copolymerization of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, dimethyl diallyl ammonium chloride, a temperature-sensitive monomer and a cross-linking agent, and the molecular weight of the thermal tackifying copolymer cement paste high-temperature stabilizer is 7-9 * 10<5>; the temperature-sensitive monomer is N-isopropylacrylamide or N-vinylcaprolactam; and the cross-linking agent is divinyl benzene or N, N-methylene bisacrylamide. The cement paste high-temperature stabilizer is obvious in high-temperature tackifying effect, the high-temperature stability of the cement paste can be remarkably improved, the temperature resistance can reach 180 DEG C, the problem of poor stability of the cement paste caused by thinning of other additives, aggravation of cement particle sedimentation and the like can be well solved in deep wells and ultra-deep wells, adverse effects on the comprehensive performance of the cement paste are avoided, and the site construction requirements are met; and the thermal tackifying copolymer cement paste high-temperature stabilizer prepared by the preparation method and the preparation method thereof are simple in process and low in cost, and have market popularization and application prospects.
本发明公开了一种热增粘共聚物类水泥浆高温稳定剂及其制备方法，其为由2‑丙烯酰胺基‑2‑甲基丙磺酸、丙烯酰胺、二甲基二烯丙基氯化铵、温敏单体和交联剂共聚而成的交联共聚物，其分子量为7×105～9×105；其中，所述温敏单体为N‑异丙基丙烯酰胺或N‑乙烯基己内酰胺；所述交联剂为二乙烯基苯或N,N‑亚甲基双丙烯酰胺；该水泥浆高温稳定剂高温增粘效果明显，可显著改善水泥浆高温稳定性，耐温性能可达到180℃，能够在深井和超深井中很好的解决由于其他外加剂变稀、水泥颗粒沉降加剧等造成的水泥浆稳定性差难题，且对水泥浆综合性能无不良影响，满足现场施工需求；在制备方法上制备热增粘共聚物类水泥浆高温稳定剂及其制备方法过程简单，成本低，具有市场推广应用前景。
Thermal tackifying copolymer cement paste high-temperature stabilizer and preparation method thereof
The invention discloses a thermal tackifying copolymer cement paste high-temperature stabilizer and a preparation method thereof. The thermal tackifying copolymer cement paste high-temperature stabilizer is a cross-linked copolymer formed by copolymerization of 2-acrylamido-2-methylpropanesulfonic acid, acrylamide, dimethyl diallyl ammonium chloride, a temperature-sensitive monomer and a cross-linking agent, and the molecular weight of the thermal tackifying copolymer cement paste high-temperature stabilizer is 7-9 * 10<5>; the temperature-sensitive monomer is N-isopropylacrylamide or N-vinylcaprolactam; and the cross-linking agent is divinyl benzene or N, N-methylene bisacrylamide. The cement paste high-temperature stabilizer is obvious in high-temperature tackifying effect, the high-temperature stability of the cement paste can be remarkably improved, the temperature resistance can reach 180 DEG C, the problem of poor stability of the cement paste caused by thinning of other additives, aggravation of cement particle sedimentation and the like can be well solved in deep wells and ultra-deep wells, adverse effects on the comprehensive performance of the cement paste are avoided, and the site construction requirements are met; and the thermal tackifying copolymer cement paste high-temperature stabilizer prepared by the preparation method and the preparation method thereof are simple in process and low in cost, and have market popularization and application prospects.
本发明公开了一种热增粘共聚物类水泥浆高温稳定剂及其制备方法，其为由2‑丙烯酰胺基‑2‑甲基丙磺酸、丙烯酰胺、二甲基二烯丙基氯化铵、温敏单体和交联剂共聚而成的交联共聚物，其分子量为7×105～9×105；其中，所述温敏单体为N‑异丙基丙烯酰胺或N‑乙烯基己内酰胺；所述交联剂为二乙烯基苯或N,N‑亚甲基双丙烯酰胺；该水泥浆高温稳定剂高温增粘效果明显，可显著改善水泥浆高温稳定性，耐温性能可达到180℃，能够在深井和超深井中很好的解决由于其他外加剂变稀、水泥颗粒沉降加剧等造成的水泥浆稳定性差难题，且对水泥浆综合性能无不良影响，满足现场施工需求；在制备方法上制备热增粘共聚物类水泥浆高温稳定剂及其制备方法过程简单，成本低，具有市场推广应用前景。
Thermal tackifying copolymer cement paste high-temperature stabilizer and preparation method thereof
热增粘共聚物类水泥浆高温稳定剂及其制备方法
LIU WENMING (Autor:in) / WU CHAOMING (Autor:in) / QI BEN (Autor:in) / LIN ZHIHUI (Autor:in) / WU XIAOLU (Autor:in) / LUO LIKUI (Autor:in) / SANG MING (Autor:in) / XIAO YAO (Autor:in) / LYU ZE (Autor:in) / CHEN DEFU (Autor:in)
23.10.2020
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
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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