Abstract: Currently, selection of EOR technology methods depends mainly on the industrial standards – ^“Technical Regulation for EOR Screening Guide.^” It is focused on geological characteristics, fluid property adaptability, technological feasibility and economic feasibility of the applied targets once a method is selected. However, some problems exist in this specification, such as lack of quantitative calculation and other details. Therefore, the study comes up with a new assessment mindset for determination of EOR method. There are eight assessment targets – design of matching degree, technological feasibility, production factor improvement margin, incremental oil production, incremental amount for each ton of oil flooding agent, cost for each ton of oil flooding agent, net present value, and recovery period. In addition, there are three risk-appraising targets – safety and environmental degree, execution risk degree and profit from each ton of oil. Comprehensive method is selected for assessment following determination of weight of each target. This new concept is based on integration of various targets and various comprehensive methods with risk assessment. This comprehensive assessment method is computer-programmed, simple and easy to operate. Three reservoir cases verify feasibility and credibility of this calculation method.

Key words: EOR method, comprehensive assessment, appraising targets, quantitative calculation, selection and optimization

摘要： 目前筛选EOR 技术方法的主要依据是行业标准《提高采收率方法筛选技术规范》，其核心思想是备选 方法与应用对象的地质特征、流体性质的适应性、技术可行性、经济可行性评价。该规范实际应用中存在的问题是没 有细化、缺少应有的定量计算。为此研究提出一种确定EOR 方法的综合评价新思路，关键是设定匹配程度、技术可 操作程度、采收率提高幅度、期间增油量、吨驱油剂增油量、吨驱油剂成本、财务净现值、回收期8 项综合评价指标 以及安全环保程度、实施风险程度、吨油利润3 项风险评估指标，确定各指标权重及选用综合评价方法。在方法运用 上提出多指标、多方法综合评价与风险评价有机组合的新理念。综合评价方法计算程序化，简捷方便，经3 个油藏实 例评价说明该计算方法可行、可信。

关键词: EOR 方法, 综合评价, 评价指标, 定量计算, 筛选优化