耐240℃超高温降失水剂的制备及性能研究

摘要为改善油井水泥高温下的降失水性能,通过引入特殊抗高温单体对苯乙烯磺酸钠(S),以2-丙烯酰胺-2-甲基丙磺酸(AMPS)、N, N-二甲基丙烯酰胺(DMAA)、衣康酸(IA)和抗高温环状单体S为原料,在引发剂APS的存在下,采用自由基共聚法合成了耐高温的降失水剂FLA-2。采用AMPS、DMAA及IA3种单体合成了降失水剂FLA-1作为对比样,分析添加抗高温单体S后降失水剂FLA-2的性能。结果表明,含有降失水剂FLA-2的水泥在质量分数为15%的盐水体系下失水量为22 mL,相较于含有FLA-1的水泥失水量明显减少了21.4%。

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	曹成章
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关键词：油井水泥耐高温降失水剂

Abstract： In order to improve the fluid loss performance of oil well cement at high temperature, a high temperature resistant fluid loss additive FLA-2 was synthesized by free radical copolymerization using 2-acrylamide-2-methylpropanesulfonic acid (AMPS), N, N-dimethylacrylamide (DMAA), itaconic acid (IA) and high temperature resistant cyclic monomer S as raw materials in the presence of initiator APS. The fluid loss additive FLA-1 was synthesized by AMPS, DMAA and IA as a comparison sample, and the performance of the fluid loss additive FLA-2 after adding the high temperature resistant monomer S was analyzed. The results showed that the water loss of cement containing FLA-2 was 22 mL in a salt water system with a salt mass fraction of 15%, which was significantly reduced by 21.4% compared with that of cement containing FLA-1.

Keywords： oil well cement high temperature resistance fluid loss agent

Received 2023-06-18;

Corresponding Authors: 郭锦棠,教授,E-mail:jtguo@tju.edu.cn。 Email: jtguo@tju.edu.cn

About author: 曹成章(1984—),男,副研究员,主要从事固井技术研究和应用工作。

引用本文:

曹成章, 常庆露, 胡苗苗, 郭锦棠.耐240℃超高温降失水剂的制备及性能研究[J]. 化学工业与工程, 2024,41(6): 70-74

CAO Chengzhang, CHANG Qinglu, HU Miaomiao, GUO Jintang.Preparation and performance study of high temperature resistant fluid loss additive[J]. Chemcial Industry and Engineering, 2024,41(6): 70-74

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