超低渗透处理剂YHS-1的研制与表征  

The Development and Characterization of a Ultra-low Filtrate Reducer

作　　者：薛玉志[1] 蓝强[1] 李公让[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院

出　　处：《钻井液与完井液》2010年第2期1-5,共5页Drilling Fluid & Completion Fluid

基　　金：国家重大办项目"低渗油气田高效开发钻井技术"课题"低渗透储层保护技术研究"(2008ZX05022-004)部分研究内容

摘　　要：根据国外产品动态降滤失剂FLC2000的特点,研制和筛选出了AZ-1、GF-1、AX-1三种处理剂,然后按照m(AZ-1)∶m(GF-1)∶m(AX-1)=4∶5∶1的比例进行有机复配,研制出了超低渗透处理剂YHS-1。AX-1为该剂的主剂,它是通过用均相聚合的方法对植物衍生物AX进行疏水改性,合成出的性能优良的胶束聚合物。通过IR图谱证实,该聚合物已经成功接枝上疏水基团,采用高精度显微镜证实了聚合物胶束的存在;AZ-1是通过在木质素中引入少量—SO3–和—COO–基团使其活化而合成的,用以提高体系的井壁稳定能力;抗压辅剂GF-1是根据颗粒粒径的级配要求优选出的。性能测试结果表明,YHS-1的粒径分布和国外产品FLC2000相似,且其中压砂床渗透性能和抗压能力均优于FLC2000,对基浆流变性能影响不大,符合现场使用要求。400余口井的现场应用结果表明,YHS-1具有优良的井壁稳定和油层保护性能,能够提高地层的承压能力,可以进一步推广应用。An ultra-low filtrate reducer,YHS-1 is synthesized through homogeneous polymerization. A micelle polymer,AX-1 is made through hydrophobic modification of a plant derivative,AX. A borehole stabilizer,AZ-1,is obtained by introducing —SO3– and —COO– into the molecules of lignin. GF-1,a sized particle material with high compressive capacity is chosen. Compounding these three additives in a mass ratio of AZ-1∶GF-1∶AX-1 = 4∶5∶1,the YHS-1 is obtained. Laboratory study shows that the particle size distribution is very similar to that of FLC2000,the filtration control and compressive capacity of YHS-1,on the other hand,are better than those of FLC2000. YHS-1 has very small effect on the property of base fluid. The application of YHS-1 in 400 wells shows that YHS-1 is effective in bore hole stabilization,reservoir protection and formation compressive capacity enhancement.

关 键 词：超低渗透处理剂 井眼稳定 防止地层损害 胶束聚合物 抗压辅剂 

分 类 号：TE254.4[石油与天然气工程—油气井工程]