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| 基于模糊概率理论的地层流体精确识别方法 |
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翟应虎1, 李祖光1, 张旭1, 李亚2, 马冬梅3, 王文广4
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(1.中国石油大学 石油工程教育部重点实验室,北京 102249;2.大庆钻探工程公司测井二公司,吉林 松原 138003;3.中石油吉林油田公司 采油工艺研究院,吉林 松原 138003;4.中国石油天然气勘探开发公司,北京 100034)
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| 摘要: |
| 充分考虑火山岩地层流体的交互性及模糊性特征, 从模糊概率理论出发,应用测井解释基本原理,对选取的火山岩样本层位测井数据进行综合统计;借助离差平方和的概念,构建地层流体的模糊概率识别功能函数;应用模糊数学及统计理论方法,确定模糊概率的概率密度函数和隶属函数;在此基础上建立基于模糊概率理论的松辽盆地火山岩地层流体识别数学模型。实例计算的识别准确率在80％以上,表明该方法切实可行,具有推广应用的价值。 |
| 关键词: 模糊概率 流体识别 松辽盆地 火山岩 |
| DOI： |
| 分类号::TE 142 |
| 文献标识码:A |
| 基金项目:教育部“长江学者和创新团队发展计划”项目(RT0411);吉林石油集团有限责任公司重点科技攻关项目(jw-07-w44-jz-1-17) |
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| Exact identification approach to volcanics formation fluid based on fuzzy probability theory |
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ZHAI Ying hu1, LI Zu guang1, ZHANG Xu1, LI Ya2, MA Dong mei3, WANG Wen guang4
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(1. MOE Key Laboratory of Petroleum Engineering in China University of Petroleum, Beijing 102249, China;2. 2nd Logging Company, Daqing Exploratory Drilling Company, Songyuan 138003, China;3. Oil Production Technology Research Institute, Jilin Oilfield Company, PetroChina, Songyuan 138003, China;4. Oil & Gas Exploration and Development Corporation, PetroChina, Beijing 100034, China)
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| Abstract: |
| The interactivity and ambiguity of volcanic fluid were adequately considered. Based on fuzzy probability theory and log interpretation axiom, sampled data of volcanics were selected and cluster analyzed. A fuzzy probability function for fluid identification was established by using the conception of sum of squares of deviations. The probability density function and subordinate functions were established by using the theory of fuzzy mathematics and probability. And a mathematical model used for formation fluid identification in Songliao Basin by fuzzy probability was derived. The precision ratio of example identification is above 80％. The calculated results show that the approach is feasible and has popularization value. |
| Key words: fuzzy probability fluid identification Songliao Basin volcanics |
