作　　者： ; ; (饶天利）; (刘向伟）; (张文来）; (候艳红）;

机构地区： 低渗透油气田勘探开发国家工程实验室

出　　处： 《石油天然气学报》 2014年第4期148-151,10,共4页

摘　　要： 靖安侏罗系油藏为长庆油田典型低渗透油藏,在开发中后期各生产区块普遍面临区块综合含水率逐年升高,产油量、产液量逐年下降,为此引进了微生物驱油技术。通过室内试验研究得到合适微生物菌种及合理注入段塞设计,并在塞XX区成功开展了矿场试验研究。试验结果表明,微生物驱油在低渗透油藏具有堵水调剖作用,起到较好的降水增油效果。措施后累计增油5097t,投入产出比为1∶19.96。该次矿场试验为侏罗系低渗透油藏开发提高采收率技术提供了发展方向。 Jurassic reservoir was a typical low permeability reservoir in Changqing Oilfield,the problems of overall water content increasing and oil production and fluid production reduction year by year were often induced in each block at the late stage of production.Thus to solve these problems,microbial oil displacement technology was introduced.By laboratory study,the appropriate microbial culture and reasonable slugs design were obtained,and a field test was successfully carried out in Block Sai 248.The results show that microbial displacement is suitable for water shutoff and profile control for water reduction and oil increment in low permeability reservoirs.After stimulation,the comprehensive water-cut reduces 2.3%,the cumulative oil production increases 5097t,and the effect has been remained unchanged.The field test provides direction for enhancing oil recovery during the development of the Jurassic low permeability reservoirs.

关 键 词： 微生物驱油 低渗透油藏 堵水调剖 靖安油田

领　　域： [石油与天然气工程]