注天然气混相驱油藏筛选新方法  

New Screening Method for Reservoir by Natural Gas-Injection Miscible Flooding Process

作　　者：邓波[1] 熊钰[1] 

机构地区：[1]西南石油学院,成都610500

出　　处：《新疆石油地质》2005年第2期212-214,共3页Xinjiang Petroleum Geology

基　　金：油气藏地质及开发工程国家重点实验室开放基金项目(PLN0118)资助

摘　　要：注天然气混相驱是提高原油采收率的重要手段之一。在注富气和贫气天然气混相驱替机理分析和注气工程动态分析的基础上,找出各种影响注气效果的因素,并选取其主要的参数,建立其相应的评价指标体系;结合油层物理和油藏工程评价方法,在对相应评价指标进行量化的基础上,引入现代决策分析方法,利用基于理想最优方案的指标赋权法,对候选油藏进行筛选排序和综合评价,体现各种影响因素对注气的整体影响,最后用于矿场试验。Natural gas injection miscible flooding is one of means for EOR. This paper presents the factors that affect gas injection results based on the analysis of lean-gas and rich-gas injection miscible flooding mechanisms and gas injection performance analysis, by which the related assessment index systems are established. Combining with reservoir physics and reservoir engineering evaluation methods, the related indices are quantified. The modern decision analysis method and optimal scheme index assignment method are used to synthetically screen and assess the candidate reservoir. The result shows that this method could reflect the influences of various factors on gas injection, and will be applied on pilot test.

关 键 词：注天然气 注气 油藏 混相驱油 驱替机理 提高原油采收率 油层物理 评价指标体系 决策分析方法 手段 

分 类 号：TE357[石油与天然气工程—油气田开发工程] TE934.4