油田CO2 EOR及地质埋存潜力评估方法  

EVALUATION METHODS OF CO2 EOR AND GEO-SEQUESTRATION POTENTIAL

作　　者：张亮[1] 任韶然[1] 张银[1] 于洪敏[1] 

机构地区：[1]中国石油大学石油工程学院,山东东营257061

出　　处：《大庆石油地质与开发》2009年第3期116-121,共6页Petroleum Geology & Oilfield Development in Daqing

基　　金：山东省自然科学项目“二氧化碳的捕集与埋存及在稠油开采中的应用研究”（2006RA05096）.

摘　　要：地质埋存是减少CO2排放、防止全球变暖的有效途径之一。实践证明，将CO2注入油藏提高采收率（EOR）是一种技术和经济都可行的地质埋存方法。在调研的基础上，分析总结了油田CO2埋存潜力评估工作内容及评价方法：油田CO2埋存潜力工作应当包括地质评估、埋存筛选、EOR筛选及潜力评估四方面的内容。目前埋存潜力评估方法没有统一的存储能力准则，但计算方法都以物质平衡为基础。油田CO2埋存潜力评估工作，应结合国内油田的开发状况、油品特点，制定新的CO2 EOR和埋存油藏筛选标准以及埋存潜力评估方法。完善不同EOR操作方式下的CO2埋存潜力评估方法，以适应不同情况、不同等级的评估要求。应用国内外专家提出的标准和方法对胜利油田老油区的CO2 EOR和埋存潜力进行了评估。Geological sequestration is an effective way to reduce CO2 emission into atmosphere and to prevent global wanning. Practice shows that injecting CO2 into reservoirs to enhance oil recovery is a feasible geo-sequestration method technically and economically. Based on study, this paper introduces the theory and method for potential evaluation of CO2 geo-sequestration. Evaluation work contains geology evaluation, sequestration reservoir screening, EOR method screening and potential evaluation. At present, there are no uniform criteria for CO2 sequestration potential evaluation, but computing methods are all based on material balance. As for the evaluation of CO2 sequestration potential, new screening criteria of CO2 sequestration and EOR should be laid down in combination with diverse development conditions and oil characteristics in domestic oilfields. Evaluation method for CO2 sequestration poten- tial under different EOR processes should be improved so as to adapt to evaluation needs under various conditions and grades. With the criteria and method proposed by experts at home and abroad, this paper performs a potential evaluation for CO2 geo-sequestration and EOR in the old oil area of Shengli Oilfield.

关 键 词：CO2 EOR 地质埋存 筛选标准 埋存潜力 评估方法 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]