改性瓜胶压裂液的制备及性能研究  

Study on preparation and properties of modified guar-based fracturing fluids

作　　者：吴亚[1] 赵攀[1] 李凡[1] 徐甜莉[1] 白海涛[1] 吴新民[1] 

机构地区：[1]西安石油大学化学化工学院,陕西西安710065

出　　处：《应用化工》2015年第4期636-639,共4页Applied Chemical Industry

基　　金：陕西省教育厅专项科研计划基金项目(12JK0644);陕西省2013年省级大学生创新创业训练项目(1173);西安石油大学大学生科研训练计划项目

摘　　要：分别以十二烷基和磺酸盐甜菜碱为修饰基团,以瓜胶原粉为主剂,制备了2种改性瓜胶增稠剂:疏水改性羟丙基瓜胶和磺酸盐甜菜碱型瓜胶。模拟现场配方,对其配制的压裂液的抗剪切性能和耐温性能进行评价。通过对比发现磺酸盐甜菜碱型胍胶比油田提供CJ2-6胍胶耐温抗剪切能力有所下降,疏水改性羟丙基胍胶比油田提供CJ2-6胍胶耐温抗剪切能力有明显改善。其中,疏水改性羟丙基瓜胶80℃下剪切60 min后,表观粘度为93.4 m Pa·s,比油田提供CJ2-6瓜胶耐温抗剪切能力有明显改善。可以考虑疏水改性羟丙基瓜胶在压裂液体系的进一步应用。Two modified guar-based fluids were prepared using meloncollagen powder as the main agent , halogenated dodecylane and sulfonate betaine as modified groups ,respectively.According to oil field,the shear ability and temperature resistance were evaluated .It was found sulfonate betaine-type guanidine gum are less tolerant of high-shear conditions and high temperature than CJ 2-6 guanidine gum ,while the hy-drophobic modification of hydroxypropyl guar gum are less tolerant of high-shear conditions and high tem-perature.Among them,the apparent viscosity of the hydrophobically modified hydroxypropyl guar gum re-mains 93.4 mPa· s for shearing 60 min at 80℃.Considering the hydrophobically modified hydroxypropyl guar gum in the further application of fracturing fluid system .

关 键 词：改性瓜胶 疏水改性 磺酸盐甜菜碱 性能评价 

分 类 号：TQ013.2[化学工程]