孤东馆5^(2+3)层油藏三元复合驱油体系双截锥体模型驱替试验  

ALKALINE-SURFACTANT-POLYMER FLOODING TESTS ON DOUBLE CONUSOID CORE MODELS FOR STRATA GUAN5^(2+3) IN GUDONG RESERVOIR

作　　者：曹绪龙[1] 王宝瑜 李可彬 刘异男 袁是高 

机构地区：[1]胜利石油管理局地质科学研究院开发试验室,山东省东营市257015

出　　处：《油田化学》1993年第2期159-163,共5页Oilfield Chemistry

摘　　要：在模拟孤东小井距试验区水线的双截锥体模型上,使用孤东馆5^(2+3)层原油和地层水,系统研究了三元复合驱油体系段塞尺寸、段塞中表面活性剂浓度、复合注入方式、驱替速度对采收率提高量的影响。由研究结果确定的化学剂总量为0.4PV,段塞中表面活性剂浓度为0.4％,注入方式为三段塞式％0.2PV(A+S)/0.2PV(A+S+P)/0.2PV(P)。In a series of simulating flooding tests on double-conusoid-shaped core model with the crude oil and formation water from strata Guan5^(2+2) of Gudong reservoir in the planned pilot district, the alkaline-surfactant-polymer flooding fluids, formulated on the basis of extensive laboratory studies previously, are investigated systematically for optimizing the size of plugs,surfactant concentration, combination of various plugs, and injecting rate. The highest oil recovery enhancement(△η=15.2%, η=76,67%) is obtained with 0.2PV(1.5%A+0.4%S)/0.2PV(1.5%A+0.4%S+0.1%P)/0.2PV(0.1%P) where A denotes Na_2CO_, S-surfactant OP-10, and P-polyacrylamide 3530S.

关 键 词：驱油体系 驱替 二次采油 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]