生物加工过程2017，Vol.15Issue(3)：69-73,5.DOI:10.3969/j.issn.1672-3678.2017.03.011
高温高盐油藏内源微生物室内模拟激活
Simulation of microbial flooding in high temperature and high salinity reservoir
摘要
Abstract
At present,conventional technology of chemical flooding is difficult to improve oil recovery in Yong 8 block of Shengli Oilfield because of the high viscosity of the crude oil,high temperature and high salinity of the reservoir condition.Potential application of the endogenous microbial flooding technology was thus studied.Structural analysis indicated that various functional bacteria,e.g.,emulsifier production microbes and methanogen were detected.Several nutritional formulas were then used to activate the bacteria and an optimum one was obtained.The effective concentration of the bacteria in the cultured brothreached 108 cfu/mL and the pressure in the culture bottle reached to 0.088 MPa with an average gas production rate of 0.2 L per gram per day.The activated bacteria broth showed good emulsifying ability,which could emulsify diesel completely and steadily.Core flooding tests showed that the improved oil recovery reached to 9% after 0.3 PV(pore volume) of the activator was injected,and the water cut decreased from 95.1% to 81.4%.The technology of the endogenous microbial flooding might find its application in the test block.关键词
高温高盐油藏/内源微生物驱/激活剂/乳化/提高采收率Key words
high temperature and high salinity reservoir/endogenous microbial flooding/activator/emulsion/enhanced oil recovery分类
能源科技引用本文复制引用
段传慧,林军章,丁明山,刘涛,宋欣..高温高盐油藏内源微生物室内模拟激活[J].生物加工过程,2017,15(3):69-73,5.基金项目
国家高技术研究发展计划(863计划)(2013AA064401) （863计划）
