含洞穴地层随钻电阻率测井响应自适应印有限元数值模拟
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Published in | 应用地球物理:英文版 no. 1; pp. 97 - 108 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
2013
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Subjects | |
Online Access | Get full text |
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Author | 刘得军 马中华 邢晓楠 李辉 郭智勇 |
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AuthorAffiliation | 中国石油大学(北京)地球物理与信息工程学院,北京102249 恒泰艾普石油天然气技术服务股份有限公司,北京100084 |
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DocumentTitleAlternate | lumerical simulation of LWD resistivity response o carbonate formation using self-adaptive hp-FEM |
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EndPage | 108 |
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Notes | LWD resistivity, hp-FEM, self-adaptive, exponential convergence, numerical simulation, cavity, reservoirs Most of the carbonate formation are highly heterogeneous with cavities of different sizes, which makes the prediction of cavity-filled reservoir in carbonate rocks difficult. Large cavities in carbonate formations pose serious threat to drilling operations. Logging-whiledrilling (LWD) is currently used to accurately identify and evaluate cavities in reservoirs during drilling. In this study, we use the self-adaptive hp-FEM algorithm simulate and calculate the LWD resistivity responses of fracture-cavity reservoir cavities. Compared with the traditional h-FEM method, the self-adaptive hp-FEM algorithm has the characteristics of the self-adaptive mesh refinement and the calculations exponentially converge to highly accurate solutions. Using numerical simulations, we investigated the effect of the cavity size, distance between cavity and borehole, and transmitted frequency on the LWD resistivity response. Based on the results, a method for recognizing cavities is proposed. This research can provide the theoretical basis for the accurate identification and quantitative evaluation of various carbonate reservoirs with cavities encountered in practice. 11-5212/O Liu De-Jun, Ma Zhong-Hua, Xing Xiao-Nan, Li Hui, and Guo Zhi-Yong 1. College of Geophysics and Information Engineering, China University of Petroleum, Beijing 102249, China. 2. Land Ocean Energy Services Co., Ltd, Beijing 100084, China. |
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PublicationDate | 2013 |
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PublicationTitle | 应用地球物理:英文版 |
PublicationTitleAlternate | Applied Geophysics |
PublicationYear | 2013 |
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StartPage | 97 |
SubjectTerms | 地层洞穴 指数收敛 数值模拟 自适应 随钻测井 高阶有限元 |
Title | 含洞穴地层随钻电阻率测井响应自适应印有限元数值模拟 |
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