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指标标准化方法在气藏开发效果评价体系中的应用
Index standardization method and its application to development effect evaluation system of gas reservoirs
曾 敏 郝 煦 庄小菊 胡 南 刘媛媛
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作者单位:中国石油天然气集团公司天然气成藏与开发重点实验室——碳酸盐岩天然气成藏机理重点研究室
中文关键字:综合评分法 指标权重 评价指标 指标标准化方法 正向型指标 逆向型指标 极值型指标 中高渗活跃水侵气藏
英文关键字:Comprehensive scoring method, Index weight; Evaluation index; Index standardization method; Positive index; Reverse index; Extreme index; Middle- and high-permeability gas reservoir with active water invasion
中文摘要:    随着气藏开发效果评价体系的推广和应用,评价体系的评价方法及评价思路越来越受到重视。目前运用较多的综合评分法严重依赖指标和评价结果的等级划分,缺少客观性、合理性。数据处理存在离散性,数据的完整度不能充分保证。为了更加直观、有效、科学地评价气藏开发效果,基于综合评分法评价思路,通过大量文献调研,开展气藏评价指标对标研究,引入气藏开发效果评价体系指标标准化方法。该方法是在综合评分法基础上,对评价指标得分参数进行改进,将评价指标标准化,然后根据指标权重计算总得分,确定评价等级。研究结果表明:①指标标准化方法不仅克服了综合评分法的主观因素和数据离散性,而且简单、省时且易操作;②通过典型气藏应用证实,与综合评分法结果相比,此方法评价结果更为客观可靠,能够较为直观的评价气藏开发效果,指导下步生产实践。
英文摘要:    With an application of development effect evaluation system to gas reservoirs, its evaluation methods and ideas attract much attention. A method of comprehensive scoring widely used now relies heavily on both index grading and evaluation results. However it's lack of objectivity and rationality and data processing is discrete, so that data integrity can not be guaranteed sufficiently. In order to evaluate the development effect more intuitively and scientifically, we carried out the benchmarking of evaluation index based on a great amount of literature investigation, and introduced another method of index standardization based on evaluation ideas of compre ensive scoring method. In this method, scoring parameters are improved to standardize the evaluation index, and then the total score is calculated according to index weight to determine evaluation grade. Results show that (1) this index standardization method not only overcomes the subjective factors and data discreteness existing in scoring method, but also is simple, time-saving, and easy to operate; and (2) its application to typical gas reservoirs also proves that, compared with comprehensive scoring method, this new method is more objective and reliable, and can provide more intuitive evaluation on the development effect and guide the next production practice
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国内统一连续出版物号:CN51-1159/TE |国内发行代码: |国际标准出版物号:ISSN1673-3177 |国际发行代码:
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