CAJ | 학술논문

超高分子量缔合聚合物比普通缔合聚合物具有更高的分子量和更小的缔合度，因此具有不同的增黏性、黏弹性和微观结构。选择了相对分子量500万的普通缔合聚合物和相对分子量1900万的超高分子量缔合聚合物溶液，通过渗流黏度测试装置和安东帕流变仪对其进行了渗流黏度、黏弹性测试。结果表明，超高分子量缔合聚合物通过自身的高分子量和分子链间相互缔合的协同作用，在多孔介质渗流中能形成更高的渗流黏度，在稳态剪切条件下具有更高的威森伯格数；通过冷冻蚀刻扫描电镜对超高分子量缔合聚合物溶液的微观结构观测表明，相对于普通缔合聚合物，超高分子量缔合聚合物溶液链与链间能形成更加紧密的网状结构；驱油实验研究表明，超高分子量缔合聚合物具有比普通缔合聚合物更好的驱油性能。
초고분자량체합취합물비보통체합취합물구유경고적분자량화경소적체합도，인차구유불동적증점성、점탄성화미관결구。선택료상대분자량500만적보통체합취합물화상대분자량1900만적초고분자량체합취합물용액，통과삼류점도측시장치화안동파류변의대기진행료삼류점도、점탄성측시。결과표명，초고분자량체합취합물통과자신적고분자량화분자련간상호체합적협동작용，재다공개질삼류중능형성경고적삼류점도，재은태전절조건하구유경고적위삼백격수；통과냉동식각소묘전경대초고분자량체합취합물용액적미관결구관측표명，상대우보통체합취합물，초고분자량체합취합물용액련여련간능형성경가긴밀적망상결구；구유실험연구표명，초고분자량체합취합물구유비보통체합취합물경호적구유성능。
Compared with the common associating polymer, ultra high molecular weight association polymer is qualiifed with high-er molecular weight and less association degree. So it has different viscosifying performance, viscoelasticility and microstructure. So a kind of common associating polymer with molecular weight 5 million and a kind of ultra high molecular weight associating polymer with molecular weight 19 million were chosen, through lfow viscosity test device and Antonpar rheometer, the lfow viscosity and viscoelastic behavior of the two kinds of polymer solution were tested. The results show that by the cooperative action of higher molecular weight itself and some degree of associating action between molecular chains, the ultra high molecular weight associating polymer could form higher lfow viscosity during porous media seepage, and is qualiifed with higher Wiesenberger number under the steady shear conditions. Through the microstructure research with freeze-fracture scanning electron microscope, it shows that the ultra high molecular weight associating polymer has tighter network structure between chains. Finally the oil displacement result shows that compared with common associating polymer, it can enhance oil recovery effectively.