Q-compensated reverse-time migration for natural gas hydrate using fractional viscoacoustic wave equation
文献类型：期刊论文
| 作者 | Ning, Yaxin; Wang, Yanfei1 |
| 刊名 | ENERGY REPORTS
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 7页码:8505-8521 |
| ISSN号 | 2352-4847 |
| 关键词 | Natural gas hydrate Complex structure imaging Fractional Laplacian Q-Compensation for attenuation |
| DOI | 10.1016/j.egyr.2021.08.030 |
| 英文摘要 | Natural gas hydrate (NGH) is a potential clean alternative energy source for fossil fuels. In seismic imaging profiles, NGH is often identified by the bottom-simulating reflection (BSR), which is characterized by strong reflection amplitude and negative polarity. High-resolution and amplitude-preserved seismic imaging are demanded for the detection of NGH. However, the traditional acoustic reverse-time migration ignores the attenuation characteristics of the medium, which leads to reduced amplitude and distorted phase of the seismic wave. In particular, when the hydrate saturation is low or the underlying formation does not contain free gas, it is difficult to observe the identifiable BSR in the traditional acoustic imaging profile, which causes difficulties in the identification of NGH. Here, we introduce the fractional viscoacoustic wave equation to perform the Q-compensated reverse-time migration (Q-RTM) for NGH, which can accurately recover the amplitude loss, correct the phase distortion, and provide high-resolution and high-illumination imaging results. Finally, Q-RTM can effectively enhance the BSR, reduce the uncertainty of hydrate identification, help to confirm the location and spatial distribution of the gas hydrate-bearing sediments, further refine the geological properties, and provide some theoretical basis for the exploitation and drilling of hydrate. (C) 2021 The Authors. Published by Elsevier Ltd. |
| WOS关键词 | CONSTANT-Q ; PROPAGATION ; ATTENUATION ; ALGORITHM ; INVERSION ; SEDIMENTS ; EFFICIENT ; MEDIA ; ROCKS |
| 资助项目 | Original Innovation Research Program of the Chinese Academy of Sciences (CAS)[ZDBS-LY-DQC003] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-2019031] ; Key Research Program of the Institute of Geology & Geophysics, CAS[SZJJ-201901] |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000727768800007 |
| 资助机构 | Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Original Innovation Research Program of the Chinese Academy of Sciences (CAS) ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103930]  |
| 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, Yanfei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ning, Yaxin,Wang, Yanfei. Q-compensated reverse-time migration for natural gas hydrate using fractional viscoacoustic wave equation[J]. ENERGY REPORTS,2021,7:8505-8521. |
| APA | Ning, Yaxin,&Wang, Yanfei.(2021).Q-compensated reverse-time migration for natural gas hydrate using fractional viscoacoustic wave equation.ENERGY REPORTS,7,8505-8521. |
| MLA | Ning, Yaxin,et al."Q-compensated reverse-time migration for natural gas hydrate using fractional viscoacoustic wave equation".ENERGY REPORTS 7(2021):8505-8521. |
入库方式： OAI收割
来源：地质与地球物理研究所
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