产气功能菌微观驱油机理研究  

Microscopic oil displacement mechanism of gas producing bacteria

作　　者：吴晓玲[1] 孙刚正[1] 段传慧[1] 程建军[2] 叶小川[2] 

机构地区：[1]中国石油化工股份有限公司胜利油田分公司石油工程技术研究院,山东东营257000 [2]中国石油化工股份有限公司胜利油田分公司河口采油厂,山东东营257000

出　　处：《生物加工过程》2016年第3期63-67,80,共6页Chinese Journal of Bioprocess Engineering

基　　金：国家高技术研究发展计划(863计划)(2013AA064401)

摘　　要：利用研制的微观仿真可视模型,对产气功能菌驱油过程中的剩余油形态及流动特征进行显微观察,定量分析产气功能菌对不同形态剩余油的微观驱替效果。结果表明:产气功能菌注入模型后,在原位产气降低了原油黏度,增强了原油流动性,对簇状和柱状剩余油的作用效果显著,最终提高采收率达22%;与常规气驱相比,产气功能菌的主动运移能够有效扩大波及体积,提高了模型过渡区和边界的驱替效率,从而获得较高的最终采收率。Morphology and flow characteristic of remaining oil in the displacement process were observed with a microscopic visual simulation model. Microscopic displacement effect of various remaining oil by the gas producing bacteria was quantitatively analyzed. After the injection of gas producing bacteria into the model,crude oil viscosity was reduced and oil mobility was enhanced. The effect on the cluster and columnar remaining oil was obvious and final oil recovery was increased by 22%. Compared with conventional gas drive, the sweep volume was enlarged and the displacement efficiency was improved in the active migration of gas producing bacteria. Therefore, a higher oil recovery was obtained.

关 键 词：产气功能菌 提高采收率 微观驱油 

分 类 号：TE357.9[石油与天然气工程—油气田开发工程] Q939.97[生物学—微生物学]