| 压裂酸化选井选层中的变权评判方法研究 |
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| 引用本文： | 杨小松,孙雷,张国强,刘永兵,孙良田.压裂酸化选井选层中的变权评判方法研究[J].天然气地球科学,2004,15(6):640-645. |
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| 作者姓名： | 杨小松 孙雷 张国强 刘永兵 孙良田 |
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| 作者单位： | 西南石油学院研究生院,四川,成都,610500 |
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| 基金项目： | 西南石油学院油气藏地质及开发工程国家重点实验室(编号:PLN018)资助. |
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| 摘 要： | 首先通过求解模糊综合评判的逆问题,得到各因素对压裂酸化选井选层影响的重要程度,然后对比分析了当某一因素缺少时变权和常权选井结果与现场实际情况的贴近程度,发现变权评判结果比常权评判结果更合理。通过对比不同因素缺少时变权评判结果,发现缺少的因素越重要,评判结果与现场实际符合程度越低。
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| 关 键 词： | 压裂酸化 选井选层 模糊评判 常权 变权 |
| 文章编号： | 1672-1926(2004)06-0640-06 |
THE RESEARCH OF VARIABLE WEIGHT EVALUATION METHOD IN WELLS AND LAYERS CHOICE FOR GAS WELLS FRACTURING AND ACIDIZING |
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| YANG Xiao-song,SUN Lei,ZHANG Guo-qiong,LIU Yong-bing,SUN Liang-tian.THE RESEARCH OF VARIABLE WEIGHT EVALUATION METHOD IN WELLS AND LAYERS CHOICE FOR GAS WELLS FRACTURING AND ACIDIZING[J].Natural Gas Geoscience,2004,15(6):640-645. |
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| Authors: | YANG Xiao-song SUN Lei ZHANG Guo-qiong LIU Yong-bing SUN Liang-tian |
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| Abstract: | Firstly, the converse of fuzzy integrated evaluation is solved and the importance of every factor for wells and layers choice of fracturing and acidizing is aware. Then when one factor is absent, the degree according with the field practice that is calculated by constant weight evaluation method(CWEM) is compared with the degree calculated by variable weight evaluation method(VWEM). It is showed that results calculated by VWEM are more accurate than results calculated by CWEM. Thirdly, when one different factor is absent. Different results calculated by VWEM are compared with each other. it is discovered that more important factor is absent, The degree according with field practice is more bad. |
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| Keywords: | Fracturing and acidizing Selecting wells and layers Fuzzy evaluation Constant weight Variable weight |
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