低渗透油藏微生物的调剖驱油  

Profile adjustment and oil displacement by bacteria in low permeability reservoisr

作　　者：贾振岐[1] 覃生高[1] 田利[1] 

机构地区：[1]大庆石油学院提高采收率教育部重点实验室,黑龙江大庆163318

出　　处：《大庆石油学院学报》2006年第1期106-108,共3页Journal of Daqing Petroleum Institute

摘　　要：针对特低渗透油藏注水开发过程中呈现出的油井产水快速上升、产能下降、供液能力差、低产低效的局面，选用自制的以微生物表面活性剂为主的菌液，在室内进行了实验，并推入矿场进行试验．结果表明：利用微生物调剖驱油，能降低注水井注入压力的25．3％～61．0％，提高原油采收率6．30％～10．50％，改善注采状况，对区块起到降水增油的作用．Aiming at the condition of low production and low efficiency of the oil wells in the special low permeability reservoirs in the process of water flooding,such as the poor capability of feed flow,the rapid increase of water production and decrease of productivity,we choose the surfactant producing bacteria for lab experiment first and then for field experiment.The results show that,in the special low permeability reservoirs,the microbial profile adjustment and oil displacement can reduce the injection pressure of the water wells by 25.3%～61.0%,improve the oil recovery by 6.3%～10.5%,better the injection and recovery status,so it plays an important role in water reduction and oil improvement for the fields.

关 键 词：微生物驱油 调剖 表面活性剂 

分 类 号：TE348[石油与天然气工程—油气田开发工程]