Multi-exponential inversions of nuclear magnetic resonance relaxation signal
文献类型：期刊论文
| 作者 | Wang, WM; Li, P; Ye, CH |
| 刊名 | SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
 |
| 出版日期 | 2001-11-01 |
| 卷号 | 44期号:11页码:1477-1484 |
| 关键词 | nuclear magnetic resonance multi-exponential inversion core analysis NMR logging |
| 英文摘要 | Beginning from the first kind of integral equation, two kinds of methods, i.e. Singular Value Decomposition (SVD) and transform that are fit for the inversion calculation of NMR multi-relaxation data from rock, have been derived. The mathematical processing was discussed in detail. The advantage and disadvantage of the two methods have been compared in theory and application. From the view of the degree of freedom of the inversion solution, we discussed the resolution of the solution of NMR relaxation inversion and the selection of optimal inversion modeling. Results showed that SVD method is fit for the inversion of NMR relaxation data with a higher signal to noise ratio and transform inversion method is more flexible and can be used in NMR data with a lower signal to noise ratio. It is advisable that transform inversion method be selected for the multi-relaxation inversion of rock NMR data. SVD method can be used when the signal to noise ratio is better than 80. In order to ensure the accuracy, the number of T-2 points should be varied from 30 to 50. The results of the research are useful for NMR core analysis and the interpretation of NMR logging data. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Mathematics, Applied ; Mathematics |
| 研究领域[WOS] | Mathematics |
| 关键词[WOS] | INTEGRAL-EQUATIONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000173578500014 |
| 公开日期 | 2015-12-01 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/8579]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 2.CNPC, Inst Porous, Langfang 065007, Peoples R China 3.Chinese Acad Sci, Langfang 065007, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, WM,Li, P,Ye, CH. Multi-exponential inversions of nuclear magnetic resonance relaxation signal[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,2001,44(11):1477-1484. |
| APA | Wang, WM,Li, P,&Ye, CH.(2001).Multi-exponential inversions of nuclear magnetic resonance relaxation signal.SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,44(11),1477-1484. |
| MLA | Wang, WM,et al."Multi-exponential inversions of nuclear magnetic resonance relaxation signal".SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY 44.11(2001):1477-1484. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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