含环糊精结构四元共聚物驱油剂的制备及性能研究  

Synthesis and properties of a tetra-copolymer containing β-cyclodextrin as enhanced oil recovery chemical

作　　者：苟绍华[1,2] 赵鹏[1] 彭川[1] 张勤[1] 王博乐 宋雨阳[1] 

机构地区：[1]油气田应用化学四川省重点实验室西南石油大学,四川成都610500 [2]油气藏地质及开发工程国家重点实验室西南石油大学,四川成都610500

出　　处：《化学研究与应用》2017年第5期664-669,共6页Chemical Research and Application

基　　金：四川省科技支撑计划项目(2016GZ0274)资助;油气田应用化学四川省重点实验室开放基金项目(YQKF201404)资助;四川省教育厅重点项目(15ZA0051)资助

摘　　要：以丙烯酸(AA)、丙烯酰胺(AM)、二烯丙基胺甲磺酸钠(SDMS)、6-O-烯丙基-β-环糊精(DPTD)为原料,合成了一种新型四元共聚物AA/AM/SDMS/DPTD。确立了该聚合物的最佳合成条件,通过红外光谱(IR)对该聚合物结构进行了表征。该聚合物具有较好的抗温、抗盐、流变性能:在120℃时,2 000 mg·L^(-1)的聚合物溶液的黏度保留率为58.8%;在10 000 mg·L^(-1)的NaCl浓度下,聚合物溶液粘度保留率达到10.6%;在1 000s^(-1)的剪切速率条件下,2 000 mg·L^(-1)的聚合物溶液的黏度保留率可以达到10.2%。通过室内模拟岩芯驱替实验表明,该聚合物能够将模拟原油采收率提高12.1%。A novel tetra-copolymer AA/AM/SDMS/DPTD was synthesized as enhanced oil recovery( EOR) chemical using acrylic acid( AA),acrylamide( AM),sodium diallylamine methanesulfonate( SDMS) and 6-O-allyl-β-cyclodextrin( DPTD) as the main raw material.The optimum conditions for the synthesis of the polymer were established,and the structure of copolymer was determined by infrared spectroscopy( IR). The polymer had good temperature-tolerance,salt-resistance and rheological properties. At 120 ℃,the viscosity retention rate of the polymer solution of 2000 mg·L^(-1)was 58. 8%. Under the Na Cl concentration of 10 000 mg·L^(-1),the viscosity retention rate of the polymer solution reached 10. 6%. Under the shear rate of 1 000 s^(-1),the viscosity retention rate of the polymer solution of 2 000 mg·L^(-1)reached 10. 2%. Core flooding experiments revealed that the enhanced oil recovery of the polymer could increase by 12. 1%.

关 键 词：聚合物驱油剂 Β-环糊精 抗温 提高采收率 

分 类 号：O632[理学—高分子化学]