水基钻井液降粘剂JNG-1的合成与性能评价  

Synthesis and performance evaluation of water-based drilling fluid viscosity reducer JNG-1

作　　者：明显森[1] 彭新侠 李强[3] 程兴春 阚兴栋[4] 

机构地区：[1]川庆钻探工程有限公司钻采工程技术研究院,四川广汉618300 [2]西南油气田公司蜀南气矿,四川泸州646000 [3]青海油田钻采工艺研究院钻井室,甘肃敦煌736200 [4]新疆油田公司采油一厂,新疆克拉玛依834000

出　　处：《应用化工》2014年第1期124-127,共4页Applied Chemical Industry

摘　　要：以苯乙烯磺酸钠(SSS)、丙烯酰胺(AM)和丙烯酸(AA)为原料,合成了SSS/AM/AA共聚物降粘剂,并对其在泥浆中的降粘性能进行了评价。最佳合成方案为:n(苯乙烯磺酸钠)∶n(AM)∶n(AA)=2∶1∶4,单体质量为15%,反应温度80℃,反应时间3 h,引发剂用量为2%。在此条件下,合成的聚合物降粘剂结构和预计的结构一致,具有较好的抗温能力,在盐浓度为30%的盐水泥浆中,降粘率为62.71%。An SSS/AM/AA copolymer as drilling fluid viscosity reducer was synthesized with acrylic acid（AA）,maleic anhydride（MA）,sodium styrene sulfonate（SSS） as raw materials. Its properties to reduce mud viscosity were evaluated. The optimum molar ratio of monomer SSS∶ AM∶ AA is 2∶ 1∶ 4,monomer mass is 15%,temperature of reaction is 80 ℃,reaction time is 3 h,dosage of initiator is 2%. Under this condition,synthetic polymer viscosity reducer structure and consistent with the structure expected,has good resistance to temperature capability. Moreover,this thinner has shown good temperature resistance and salt resistance（salt concentration up to 30%）,and the thinner is 62. 71%.

关 键 词：钻井液 降粘剂 聚合物 苯乙烯磺酸钠 AM AA 抗温性 

分 类 号：TE254.4[石油与天然气工程—油气井工程]