A study on gravity field downward continuation using the regularized equivalent-layer method
文献类型：期刊论文
| 作者 | Li XiaoJie1,2,3; Wang ZhenLi1,3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2018-07-01 |
| 卷号 | 61期号:7页码:3028-3036 |
| 关键词 | Downward continuation Equivalent layer Tikhonov regularization Iterative compensation |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2018L0249 |
| 英文摘要 | In recent years, dynamic reservoir monitoring technology using time-lapse microgravity method has been receiving much attention of researchers at home and abroad. As a result of the low signal to noise ratio (SNR) and weak signal in observation data, it is impossible to quantitatively interpret fluid migration in reservoirs using time-lapse microgravity data. In order to suppress observation noise and enhance weak signals, this article presents the regularized equivalent source downward continuation (RESDC) method, and derives the RESDC operator in the wavenumber domain. Besides, the iterative compensation algorithm is proposed to compensate for amplitude attenuation of the downward continuation field. With tests on synthetic data, this work further studies the wavenumber response of the filtering operators and the downward continuation operators of regularized equivalent layers at different depths. Results show that the downward continuation field of the RESDC method is more accurate and stable compared with the field from the Tikhonov downward continuation method. Applying the iterative compensation RESDC method to field data of a time-lapse microgravity survey verifies that the proposed method can effectively enhance weak signals and stably realizes large-depth downward continuation. |
| WOS关键词 | POTENTIAL FIELDS ; ITERATION METHOD ; MAGNETIC-FIELD ; SURFACE ; REDUCTION ; PLANE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000438837800030 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/94029]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Wang ZhenLi |
| 作者单位 | 1.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li XiaoJie,Wang ZhenLi. A study on gravity field downward continuation using the regularized equivalent-layer method[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(7):3028-3036. |
| APA | Li XiaoJie,&Wang ZhenLi.(2018).A study on gravity field downward continuation using the regularized equivalent-layer method.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(7),3028-3036. |
| MLA | Li XiaoJie,et al."A study on gravity field downward continuation using the regularized equivalent-layer method".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.7(2018):3028-3036. |
入库方式： OAI收割
来源：地质与地球物理研究所
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