耐240℃超高温降失水剂的制备及性能研究  

Preparation and performance study of high temperature resistant fluid loss additive

作　　者：曹成章 常庆露 胡苗苗 郭锦棠[2,3] CAO Chengzhang;CHANG Qinglu;HU Miaomiao;GUO Jintang(Sinopec Shengli Oilfield Service Corporation,Shangdong,Dongying 257064,China;School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;Zhejiang Institute of Tianjin University(Shaoxing),Zhejiang,Shaoxing 312000,China)

机构地区：[1]中石化胜利石油工程有限公司固井技术服务中心,山东东营257064 [2]天津大学化工学院,天津300072 [3]天津大学浙江研究院(绍兴),浙江绍兴312000

出　　处：《化学工业与工程》2024年第6期70-74,共5页Chemical Industry and Engineering

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%。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.

关 键 词：油井水泥 耐高温 降失水剂 

分 类 号：TE256.6[石油与天然气工程—油气井工程]