| 页岩气水平井TOC测井评价新方法 |
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| 引用本文： | 刘伟男,张超谟,朱林奇,胡松,孔政,邓瑞.页岩气水平井TOC测井评价新方法[J].物探与化探,2021(2):423-431. |
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| 作者姓名： | 刘伟男 张超谟 朱林奇 胡松 孔政 邓瑞 |
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| 作者单位： | 油气资源与勘探技术教育部重点实验室（长江大学）;中海石油（中国）有限公司深圳分公司;中国科学院深海科学与工程研究所;中国石化石油勘探开发研究院;中石化胜利油田勘探开发研究院 |
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| 基金项目： | 国家科技重大专项(2016ZX05060-002、2017ZX05032003-005);长江大学优秀硕士学位论文培育计划资助项目。 |
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| 摘 要： | 由于存在地层缺失、井眼穿层不断变化、重点层段测井曲线较少、井眼环境复杂、测井响应值与储层参数关系较为复杂等特点,页岩气储层水平井测井解释难度较大。针对该问题,本文采用“水平井钻遇地层模型—水平井间及水平井与直井响应差异分析—水平井曲线校正—基于直井的参数评价模型”的评价技术流程,进行页岩气水平井TOC测井评价。在测井评价中,针对响应规律复杂的特点,采用直方图法进行测井响应规律分析,同时考虑到水平井测井曲线较少,为了综合利用测井曲线信息,结合曲线重叠方法提出双重信息融合评价模型。结果表明,本方法在充分分析测井响应差异的基础上对水平井测井曲线进行校正,且提出的双重信息融合模型具有能充分利用测井信息、评价精度高以及操作简单等优点。
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| 关 键 词： | 页岩气 测井响应差异 水平井测井曲线校正 TOC 双重信息融合 |
A new method for TOC logging evaluation in shale gas for horizontal well |
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| LIU Wei-Nan,ZHANG Chao-Mo,ZHU Lin-Qi,HU Song,KONG Zheng,DENG Rui.A new method for TOC logging evaluation in shale gas for horizontal well[J].Geophysical and Geochemical Exploration,2021(2):423-431. |
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| Authors: | LIU Wei-Nan ZHANG Chao-Mo ZHU Lin-Qi HU Song KONG Zheng DENG Rui |
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| Institution: | (Key Laboratory of Exploration Technologies for Oil and Gas Resources,Yangtze University,Wuhan 430100,China;Shenzhen Branch,CNOOC China Co.,Ltd.,Shenzhen 518054,China;Institute of Deep-sea Science and Engineering,Chinese Academy of Sciences,Sanya 572000,China;Exploration&Production Research Institute,SINOPEC,Beijing 100083,China;Exploration and Development Research Institute,Shengli Oilfield company,SINOPEC,Dongying 257099,China) |
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| Abstract: | Due to the lack of layer,the constant change in borehole formation,the fewer logging curves in key intervals,the complex borehole environment,the complex relationship between logging response and reservoir parameters and some other factors,the logging interpretation of horizontal well in shale gas is difficult.Aimed at tackling this problem,the authors adopted the evaluation technique flow of"Formation method of horizontal well logging-Analysis of response differences between horizontal wells and between horizontal and vertical wells-Correction of horizontal well curves-Parameter evaluation method based on vertical wells"to evaluate TOC in shale gas for horizontal wells.In the logging evaluation,in view of the complex response law,the histogram method is used to analyze the logging response law and,in consideration of the fact that there are fewer logging curves for horizontal wells in the logging evaluation,a dual information fusion method is proposed based on combination with curve overlap method so as to comprehensively utilize the logging curve information.The results show that this method can correct horizontal well logging curves based on fully analyzing the logging response differences,and the dual information fusion method has the advantages of full use of logging information,high accuracy of evaluation method and simple operation. |
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| Keywords: | shale gas the logging response difference the correction of logging curves in horizontal well TOC dual information fusion |
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