Accuracy analysis of borehole observation microseismic location based on time reverse imaging
文献类型：期刊论文
| 作者 | Cheng Qian2,3,4; Wei Wei2,3,4 ; Fu LiYun1
|
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2022-08-01 |
| 卷号 | 65期号:8页码:3213-3228 |
| ISSN号 | 0001-5733 |
| 关键词 | Microseismic Acquisition design Location accuracy Time reverse imaging |
| DOI | 10.6038/cjg2022P0237 |
| 英文摘要 | Microseismic location is a key step in exploration and development of unconventional and low permeability reservoirs or safety monitoring of underground engineering. Its accuracy is an important basis for realizing real-time characterization of reservoirs and engineering disaster monitoring and early warning. Due to the characteristics of weak energy, high frequency and low signal-to-noise ratio of microseismic signals, the accuracy of microseismic location is easily affected by the location of the acquisition and observation system, especially in the downhole confined space and environment with high temperature and pressure. Based on this, this paper proposes an analysis method for the location accuracy of downhole microseismic acquisition based on time reverse imaging, which can quantitatively predict the location bias and uncertainty in horizontal and depth directions of the actual acquisition and observation system layout scheme. Different from traditional location accuracy analysis methods, this method is based on waveform rather than travel time and is suitable for complex and inhomogeneous media. Meanwhile, the influence of SNR and focal mechanism on location accuracy is considered. The application results in both homogeneous and inhomogeneous media show that the proposed method can effectively evaluate the expected location accuracy of the microseismic acquisition scheme, and then feedback the design of acquisition parameters to improve the microseismic location effect in complex media from the source of data acquisition. |
| WOS关键词 | MINING-INDUCED SEISMICITY ; ACQUISITION GEOMETRIES ; EARTHQUAKE LOCATION ; WAVE PROPAGATION ; FRACTURE SYSTEM ; FIELD ; HYPOCENTER ; ALGORITHM ; MEDIA |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000836816500031 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/108403]  |
| 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 | Wei Wei |
| 作者单位 | 1.China Univ Petr East China, Key Lab Deep Oil & Gas, Qingdao 266580, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 4.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 | Cheng Qian,Wei Wei,Fu LiYun. Accuracy analysis of borehole observation microseismic location based on time reverse imaging[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2022,65(8):3213-3228. |
| APA | Cheng Qian,Wei Wei,&Fu LiYun.(2022).Accuracy analysis of borehole observation microseismic location based on time reverse imaging.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,65(8),3213-3228. |
| MLA | Cheng Qian,et al."Accuracy analysis of borehole observation microseismic location based on time reverse imaging".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 65.8(2022):3213-3228. |
入库方式： OAI收割
来源：地质与地球物理研究所
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