Acoustic wave attenuation analysis of the abnormal geo-pressure and seismic extrapolation inversion of the formation pressure
文献类型：期刊论文
| 作者 | Zhang Bing; Fu Li-Yun; Wei Wei; Guan Xi-Zhu |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2014-10-01 |
| 卷号 | 57期号:10页码:3373-3388 |
| 关键词 | The Carnarvon Basin in the North West Shelf of Australia Abnormal pressure prediction Acoustic attenuation quality factor Seismic-to-well correlation analysis Seismic extrapolation inversion of the abnormal geo-pressure |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20141024 |
| 文献子类 | Article |
| 英文摘要 | The Carnarvon Basin in the North West Shelf of Australia is rich in hydrocarbon resources, but the geological conditions are very complex, and abnormal formation pressure is ubiquitous; especially local abnormal high pressure zones exist in the middle-deep massive heavy Muderong Shale, which brought great difficulties to the oil drilling. This paper chooses the regional caprock Muderong Shale in the northern Carnarvon Basin as a test target, based on the measured formation pressure data, acoustic logging data, and cross-well seismic data, studies the abnormal geo-pressure and the attenuation characteristics of kHz-scale acoustic response, and the relevant calculation model between attenuation parameter and formation pressure, so as to transit from seismic-to-well correlation analysis of the seismic data in the area to the sensitivity analysis of the abnormal geopressure with the attenuation parameter of borehole-side seismic data and the relevant model building, thus the seismic extrapolation inversion of formation pressure can be achieved. The result of acoustic logging data shows that there is a good positive correlation between the effective pressure and the acoustic velocity/impedance quality factor, and based on the fitting polynomial formulas obtained from the crossplot of the two, the back-calculated effective pressure curve can reflect the variation characteristics of the measured effective pressure well. Then the result of the cross-correlation analysis and correlation coefficients between the filtered impedance logs and the borehole-side seismic relative impedance shows that the seismic data in the Northern Carnarvon Basin has an approved seismic-to-well correlation, so the seismic data quality is relatively reliable,, ensuring seismic-to-well transition of sound -pressure correlation analysis. Finally, based on the correlation analysis of the borehole-side seismic absolute impedance and the effective pressure, we build the seismic extrapolation inversion model of formation pressure, and predict the effective pressure of one cross-well seismic line, the result is basically consistent with the measured pressure and characteristics of pressure distribution in the area. So this paper provides an excellent way to the seismic prediction about local abnormal pressure zones in the Muderong Shale in the northern Carnarvon Basin. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000344039800024 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85990]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang Bing |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Bing,Fu Li-Yun,Wei Wei,et al. Acoustic wave attenuation analysis of the abnormal geo-pressure and seismic extrapolation inversion of the formation pressure[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(10):3373-3388. |
| APA | Zhang Bing,Fu Li-Yun,Wei Wei,&Guan Xi-Zhu.(2014).Acoustic wave attenuation analysis of the abnormal geo-pressure and seismic extrapolation inversion of the formation pressure.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(10),3373-3388. |
| MLA | Zhang Bing,et al."Acoustic wave attenuation analysis of the abnormal geo-pressure and seismic extrapolation inversion of the formation pressure".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.10(2014):3373-3388. |
入库方式： OAI收割
来源：地质与地球物理研究所
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