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采用混合法和递推矩阵算法模拟层状介质中随钻电磁波电阻率测量仪器的响应 Simulating electromagnetic wave resistivity MWD tool‘S response in stratified media using hybrid method and recursive matrix algorithm |
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baiyuefei
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oven1986: 检索EPI+1, 感谢你的应助！ 2013-10-13 16:53:48
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Accession number: 20131016087632 Title: Simulating electromagnetic wave resistivity MWD tool's response in stratified media using hybrid method and recursive matrix algorithm Authors: Wei, Bao-Jun1, 2 Email author weibj@upc.edu.cn; Zhang, Ke1; Ou, Yong-Feng1; Wu, Yang1 Author affiliation: 1 College of Science in China University of Petroleum, Qingdao 266580, China 2 Key Laboratory of New Energy Physics and Material Science in Universities of Shandong, China University of Petroleum, Qingdao 266580, China Corresponding author: Wei, B.-J. (weibj@upc.edu.cn) Source title: Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban)/Journal of China University of Petroleum (Edition of Natural Science) Abbreviated source title: Zhongguo Shiyou Daxue Xuebao (Ziran Kexue Ban) Volume: 37 Issue: 1 Issue date: February 2013 Publication year: 2013 Pages: 61-69 Language: Chinese ISSN: 16735005 Document type: Journal article (JA) Publisher: University of Petroleum, China, Shandong, Dongying 257061, 257062, China Abstract: The hybrid method and the recursive matrix algorithm were combined to compute the electromagnetic wave resistivity MWD tool's response in cylindrically symmetrical 2-D stratified media. A matrix equation group for ascertaining all the coefficients was obtained according to the continuity condition of electromagnetic fields at the interfaces, which can be solved rapidly via a recursive algorithm.Thus the tedious mode of up-going and down-going waves was abandoned and the appearance of exponentially increasing terms has been prevented. The influence of borehole, invasion and collar groove on electromagnetic wave resistivity MWD tool's response was analyzed by the combined hybrid and recursive matrix method. The results show that the influence of drilling fluid on the receiver coil's response is weakened since the space occupied by the drilling fluid within the borehole is reduced by the existence of metal drilling collar. The influence of the collar groove on the MWD tool's phase difference and amplitude ratio can be neglected, but the collar groove has exerted distinct influence on the single receiver coil's phase and amplitude. The collar groove's influence on amplitude is more obvious than that on phase. Number of references: 15 Main heading: Drill collars Controlled terms: Algorithms - Boring - Drilling fluids - Electric logging - Electromagnetic fields - Electromagnetic waves - Matrix algebra - Well drilling Uncontrolled terms: Amplitude ratios - Continuity conditions - Hybrid method - Matrix equations - Measurement while drillings - Phase difference - Receiver coil - Recursive matrix - Recursive matrix methods - Stratified media Classification code: 921 Mathematics - 723 Computer Software, Data Handling and Applications - 711 Electromagnetic Waves - 921.1 Algebra - 701 Electricity and Magnetism - 512.1.2 Petroleum Deposits : Development Operations - 511.2 Oil Field Equipment - 604.2 Machining Operations DOI: 10.3969/j.issn.1673-5005.2013.01.010 Database: Compendex Compilation and indexing terms, © 2013 Else |
2楼2013-10-13 09:32:01
baiyuefei
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- 虫号: 676696
- 注册: 2008-12-18
- 性别: GG
- 专业: 合成药物化学
- 管辖: 有机交流
3楼2013-10-13 09:32:11