朝50区块微生物驱先导性试验效果及认识  

MEOR pilot effect and prehension on Block 50 of Chaoyanggou oil field

作　　者：王凤兰[1] 王志瑶[2] 王晓冬[1] 

机构地区：[1]中国地质大学能源系,北京100083 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2008年第3期102-105,135,共5页Petroleum Geology & Oilfield Development in Daqing

摘　　要：朝阳沟油田是全国较大的特低渗透油田,探明地质储量2.13×108t,动用地质储量1.57×108t。由于该油田不适合化学采油技术,为进一步挖潜该区的剩余油,改善油田开发效果,开展了2注10采微生物驱先导性试验,累计增油1.36×104t,投入产出比1∶6,含水下降了30.3%,取得了提高采收率3%的好效果,试验证明该技术可以重复应用,环保且不伤害地层,为类似的油田开辟出了一条新的提高采收率途径。Chaoyanggou oilfield is one of the major oilfields in China of extra-low permeability, with proved geologic reserve being 213 million ton and producing geologic reserve being 157 million ton. Chemical oil recovery techniques are not adequate for Chaoyanggou oilfield regarding to the in-situ conditions, in order to improve development effect and extract the residual oil, microbial enhanced oil recovery pilot is carried out in the form of 2 injectors and 10 producers, with achievement of cumulative oil increment being 13.6 thousand ton and input/output ratio being 1 ： 6, in addition, water cut decreases by 30.3% while the recovery factor being enhanced by 3%. The pilot results imply that the technique could be replicated, and the technique would not cause damage to the formations, which gives light to a new way of enhancing oil recovery for oilfields of the similar type.

关 键 词：朝阳沟油田 微生物驱 菌液 驱油效果 

分 类 号：TE357[石油与天然气工程—油气田开发工程]