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.
作者
曹成章
常庆露
胡苗苗
郭锦棠
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)
出处
《化学工业与工程》
CSCD
北大核心
2024年第6期70-74,共5页
Chemical Industry and Engineering
关键词
油井水泥
耐高温
降失水剂
oil well cement
high temperature resistance
fluid loss agent
