西南石油大学学报（自然科学版）Issue(6)：95-104,10.DOI:10.11885/j.issn.1674-5086.2012.08.30.03
特低渗透油藏注CO2驱参数优化研究
Research on CO2 Flooding Parameters Optimization of Extra-low Permeability Reservoirs
摘要
Abstract
The Chang-6 formation of Block Wangyao in Ansai Oilfield belongs to the extra-low permeability reservoir. Cur-rently,it has entered the high water-cut stage. It is difficult to further enhance recovery by water flooding. However,CO2 flooding is an important EOR approach in extra-low permeability reservoir,which can compensate for the disadvantages of wa-ter flooding. Taking the Chang-6 of Wangyao extra-low permeability reservoir for example,this paper analyzes the geological features of the block and the problems in water flooding development,and optimizes the CO2 flooding pattern fitting for the pilot area by applying geological modeling and reservoir numerical simulation techniques,and further optimizes the parame-ters of formation pressure,production rate,water alternating gas time,shut-in gas-oil ratio and total gas injection volume. The results of this study will offer basic parameters of CO2 miscible flooding to the construction and implementation of field test. It also provides reference to implement action of CO2 flooding technology to the entire Ansai Oilfield.关键词
特低渗透油藏/长6储层/CO2驱油/数值模拟/参数优化Key words
extra-low permeability reservoirs/Chang-6 formation/CO2 flooding/numerical simulation/parameter optimiza-tion分类
能源科技引用本文复制引用
王欢,廖新维,赵晓亮..特低渗透油藏注CO2驱参数优化研究[J].西南石油大学学报（自然科学版）,2014,(6):95-104,10.基金项目
国家自然科学基金委员会-中国石油天然气集团公司石油化工联合基金（U1262101）。 （）
