Key preprocessing technology and its application for CBM AVO analysis
文献类型：期刊论文
| 作者 | Liu, Zhiwei1; Si, Guoshuai2; Chen, Xinping3; Wang, Qing4; Deng, Shiguang1 |
| 刊名 | ACTA GEOPHYSICA
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 65期号:5页码:1069-1079 |
| 关键词 | CBM AVO analysis Relative amplitude preserved Radial trace filter Surface-consistent amplitude compensation Kirchhoff prestack time migration |
| ISSN号 | 1895-7455 |
| DOI | 10.1007/s11600-017-0083-0 |
| 文献子类 | Article |
| 英文摘要 | The hazards of amplitude versus offset (AVO) technique mostly applied in seismic explorations for predicting coalbed methane (CBM) content mainly derive from multi-stage amplitude modifications during seismic signal preprocessing. The modifications are undoubtedly necessitated by improving high signal-to-noise ratio (SNR) and high resolution, and achieve high fidelity to some extent; and nevertheless lead to an unfavorable possibility to implement CBM AVO analysis. Similar to sandstone reservoir with gas, AVO analysis preprocessing for CBM reservoir strictly abides by a relative amplitude preserved (RAP) principle and particularly emphasizes on preserving the evanescent class IV AVO anomaly. As for those indispensable dealings with linear noise attenuations, near-surface variety compensations and time/depth spatial imaging, the key technologies adapted to CBM AVO preprocessing should use radial trace (RT) filter, refined surface-consistent amplitude compensation (SCAC), and RAP Kirchhoff prestack time migration (PSTM). The theoretical analysis and one real 3D example in this paper demonstrate that three key technologies compliant to RAP principle in CBM AVO preprocessing can preserve the class IV AVO anomaly and benefit an operation of CBM AVO analysis and an improvement of CBM evaluation. |
| WOS关键词 | COAL-BED METHANE ; GAS SANDS ; RESERVOIRS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000412972300013 |
| 出版者 | SPRINGER INTERNATIONAL PUBLISHING AG |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/61981]  |
| 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 | Liu, Zhiwei |
| 作者单位 | 1.Chinese Acad Geol Sci, Beijing 100037, Peoples R China 2.CNPC, BGP Inc, Res Inst, Zhuozhou 072751, Peoples R China 3.Geomodulus Co Ltd, Beijing 102208, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zhiwei,Si, Guoshuai,Chen, Xinping,et al. Key preprocessing technology and its application for CBM AVO analysis[J]. ACTA GEOPHYSICA,2017,65(5):1069-1079. |
| APA | Liu, Zhiwei,Si, Guoshuai,Chen, Xinping,Wang, Qing,&Deng, Shiguang.(2017).Key preprocessing technology and its application for CBM AVO analysis.ACTA GEOPHYSICA,65(5),1069-1079. |
| MLA | Liu, Zhiwei,et al."Key preprocessing technology and its application for CBM AVO analysis".ACTA GEOPHYSICA 65.5(2017):1069-1079. |
入库方式： OAI收割
来源：地质与地球物理研究所
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