AA/AMPS/DMDAAC共聚物钻井液降粘剂性能评价  

Properties of AA/AMPS/DMDAAC Copolymer as Viscosity Reducer for Drilling Fluids

作　　者：谢建宇[1,2] 王旭[2] 张滨[2] 周乐群[2] 王亚彬[2] 

机构地区：[1]北京化工大学理学院 [2]中原石油勘探局钻井工程技术研究院

出　　处：《石油与天然气化工》2009年第5期434-436,443,共4页Chemical engineering of oil & gas

摘　　要：对丙烯酸(AA)、2-丙烯酰胺基-2-甲基丙磺酸(AMPS)和二甲基二烯丙基氯化铵(DMDAAC)共聚物钻井液降粘剂在钻井液中的降粘性能进行了室内评价,并利用IR对共聚物进行了表征,借助热分析考察了共聚物的热稳定性。研究结果表明,该降粘剂可以显著降低钻井液的粘度和切力,加入0.5%降粘剂的淡水基浆,高温降粘率可以达到92.1%,并且具有较好的抑制性和抗盐、抗钙性能。The properties of acrylic acid/ 2-acrylamido-2-methylpropanesulfanic acid/ diallyl dimethyl ammonium chloride copolymer as viscosity reducer in drilling fluids were evaluated in laboratory. Viscosity reducer was characterized with IR. Thermal stability of copolymer was measured by thermal analysis. The experimental results showed that it could reduce viscosity and shearing force of mud. When the addition of viscosity reducer was 0.5%, the thinning rate at high temperature was 92.1% for fresh water clay mud. And it had very good inhibition, salt tolerance and calcium tolerance.

关 键 词：钻井液 丙烯酸/2-丙烯酰胺基-2-甲基丙磺酸/二甲基二烯丙基氯化铵共聚物 降粘剂 高温 

分 类 号：TE254.4[石油与天然气工程—油气井工程] O632.13[理学—高分子化学]