CAJ | 학술논문

结合沈67块油藏特征，研究了交联聚合物微球ESsc深部调驱体系封堵性能，进行聚合物微球室内岩心驱油模拟实验。实验结果显示：微球ESsc驱油时，当岩心渗透率在（500—3500）×10^-3μm。范围内，微球驱对应采收率相对稳定，能满足化学驱提高采收率要求。另外，针对油藏孔隙吼道的多分布特征，在选择微球作为主调驱段塞时，应对特大孔隙采用过250目延迟体膨型颗粒调剖剂进行先期调剖。2009年在沈67块实施聚合物微球体系深部调驱先导试验，取得了较好效果。
결합침67괴유장특정，연구료교련취합물미구ESsc심부조구체계봉도성능，진행취합물미구실내암심구유모의실험。실험결과현시：미구ESsc구유시，당암심삼투솔재（500—3500）×10^-3μm。범위내，미구구대응채수솔상대은정，능만족화학구제고채수솔요구。령외，침대유장공극후도적다분포특정，재선택미구작위주조구단새시，응대특대공극채용과250목연지체팽형과립조부제진행선기조부。2009년재침67괴실시취합물미구체계심부조구선도시험，취득료교호효과。
According to reservoir characteristics of block Shen 67, it was studied on plugging performance of the cross - linked polymer microsphere (ESsc) system for deep profile modification and flooding, and carried out core flooding ex- periments. The experimental results show that if core permeability is within a range of values from 500 ~ 10 -3 m2 to 3500 ~ 10-3 m2' recovery factor of the ESsc flooding is relatively stable, so as to meet the requirement of chemical flooding en- hanced oil recovery. In addition, according to various distribution characters of pores and throats in block Shen 67, if ESsc is used as main drive slug, extra - large pores should be in advance plugged by the delayed expansion grains with 250 mesh. In 2009, pilot project was implemented in block Shen 67 and better results were obtained.