西南石油大学学报（自然科学版）
西南石油大學學報（自然科學版）
서남석유대학학보（자연과학판）
JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SEIENCE & TECHNOLOGY EDITION)
2013年
4期
114-120
,共7页
姚传进%李蕾%雷光伦%高雪梅
姚傳進%李蕾%雷光倫%高雪梅
요전진%리뢰%뢰광륜%고설매
孔喉尺度弹性微球%粒径分布%封堵特性%分流特性%深部调驱%提高采收率
孔喉呎度彈性微毬%粒徑分佈%封堵特性%分流特性%深部調驅%提高採收率
공후척도탄성미구%립경분포%봉도특성%분류특성%심부조구%제고채수솔
pore-scale elastic microspheres%particle size distribution%plugging property%bifurcation flow property%deep profile control and flooding%enhanced oil recovery
针对油田注水开发存在的问题及弹性微球调驱应用现状，利用激光粒度分析仪分析了弹性微球的粒径分布；利用填砂管岩芯（单管、长管、非均质双管、非均质三管）驱替实验，研究了弹性微球的封堵特性、运移能力、分流特性、驱油性能及聚驱后的深部调驱性能。结果表明，弹性微球粒径具有单峰分布特征，服从威布尔分布；弹性微球可在岩芯中不断运移和封堵，具有良好的深部调驱性能；弹性微球可选择性封堵高渗层，用于非均质岩芯调驱分别提高采收率16.11%（低渗管）、11.28%（中渗管）和5.02%（高渗管），说明弹性微球可改善中低渗层及高渗层中低渗区的波及状况和驱替效果，有效提高采收率；聚驱后弹性微球调驱比单一聚驱提高采收率5.73%，具有良好的聚驱后深部调驱效果。
針對油田註水開髮存在的問題及彈性微毬調驅應用現狀，利用激光粒度分析儀分析瞭彈性微毬的粒徑分佈；利用填砂管巖芯（單管、長管、非均質雙管、非均質三管）驅替實驗，研究瞭彈性微毬的封堵特性、運移能力、分流特性、驅油性能及聚驅後的深部調驅性能。結果錶明，彈性微毬粒徑具有單峰分佈特徵，服從威佈爾分佈；彈性微毬可在巖芯中不斷運移和封堵，具有良好的深部調驅性能；彈性微毬可選擇性封堵高滲層，用于非均質巖芯調驅分彆提高採收率16.11%（低滲管）、11.28%（中滲管）和5.02%（高滲管），說明彈性微毬可改善中低滲層及高滲層中低滲區的波及狀況和驅替效果，有效提高採收率；聚驅後彈性微毬調驅比單一聚驅提高採收率5.73%，具有良好的聚驅後深部調驅效果。
침대유전주수개발존재적문제급탄성미구조구응용현상，이용격광립도분석의분석료탄성미구적립경분포；이용전사관암심（단관、장관、비균질쌍관、비균질삼관）구체실험，연구료탄성미구적봉도특성、운이능력、분류특성、구유성능급취구후적심부조구성능。결과표명，탄성미구립경구유단봉분포특정，복종위포이분포；탄성미구가재암심중불단운이화봉도，구유량호적심부조구성능；탄성미구가선택성봉도고삼층，용우비균질암심조구분별제고채수솔16.11%（저삼관）、11.28%（중삼관）화5.02%（고삼관），설명탄성미구가개선중저삼층급고삼층중저삼구적파급상황화구체효과，유효제고채수솔；취구후탄성미구조구비단일취구제고채수솔5.73%，구유량호적취구후심부조구효과。
According to the problems of water flooding and the application status of elastic microspheres profile control and flooding,the particle size distribution of elastic microspheres was analyzed using laser particle size analyzer;using sandpack core(single tube sandpack,long sandpack,heterogeneous two-tube sandpacks,heterogeneous three-tube sandpacks)displace-ment experiments,the plugging property,migration capacity,diversion property,oil displacing performance and deep profile control and flooding property after polymer flooding of elastic microspheres were studied. The results show that the particle size of elastic microspheres bears a typical single-peak distribution character obeying Weibull Distribution;elastic microspheres can migrate and plug in sandpacks gradually,which indicate that elastic microspheres have deep displacement performance;elastic microspheres can plug high permeability layer selectively which can be applied to heterogeneous sandpacks,with the enhanced oil recovery 16.11%(low permeability tube),11.28%(middle permeability tube)and 5.02%(high permeability tube)respec-tively. This indicates that elastic microspheres can improve the middle and low permeability oil layers as well as middle and low permeability areas of high permeability layers selectively and thus enhance oil recovery effectively;elastic microspheres profile control and flooding after polymer flooding can enhance oil recovery by 5.73%more than single polymer flooding which indicates that elastic microspheres have better deep profile control and flooding efficiency after polymer flooding.
