| 时频分析在北黄海东部坳陷中生界储层的应用 |
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| 引用本文： | 吴淑玉, 刘俊. 时频分析在北黄海东部坳陷中生界储层的应用[J]. 海洋地质与第四纪地质, 2016, 36(1): 189-196. doi: 10.16562/j.cnki.0256-1492.2016.01.019 |
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| 作者姓名： | 吴淑玉 刘俊 |
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| 作者单位： | 1. 国土资源部海洋油气资源与环境地质重点实验室, 青岛 266071;;; 2. 海洋国家实验室海洋矿产资源评价与探测技术功能实验室, 青岛 266071;;; 3. 青岛海洋地质研究所, 青岛 266071;;; 4. 中国地质大学, 武汉 430074 |
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| 基金项目： | 国土资源部海洋油气资源和环境地质重点实验室基金(MRE201318和MRE201115)；国家海洋局海底重点实验室基金(KLSG1102) |
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| 摘 要： | 北黄海东部坳陷有利勘探区块为发育在斜坡上的扇三角洲沉积相,砂岩储层薄,横向变化大,利用常规的地震属性难以圈闭有利储集层,时频分析技术是寻找薄储层最有利的手段。通过研究短时窗傅里叶变换、连续小波变换、时频连续小波变换和S变换等几种经典时频分析方法的特点,分别从时间分辨率、频率分辨率总结了各自的优缺点和适应性,最后优选出S变换对北黄海东部坳陷地震资料进行频谱分解。结果表明,该项技术提高了地震分辨率,对地层细节的刻画更清晰,有效地识别了断层边界,并且能够预测储集层的沉积环境变化及沉积相划分,频谱分解方法是该研究区进行储层预测的新方法和新手段。
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| 关 键 词： | 北黄海 东部坳陷 时频分析 储层 |
| 收稿时间： | 2014-11-30 |
| 修稿时间： | 2015-02-25 |
APPLICATION OF TIME-FREQUENCY ANALYSIS TO THE MESOZOIC RESERVOIR,EASTERN DEPRESSION OF NORTH YELLOW SEA |
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| WU Shuyu, LIU Jun. APPLICATION OF TIME-FREQUENCY ANALYSIS TO THE MESOZOIC RESERVOIR, EASTERN DEPRESSION OF NORTH YELLOW SEA[J]. Marine Geology & Quaternary Geology, 2016, 36(1): 189-196. doi: 10.16562/j.cnki.0256-1492.2016.01.019 |
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| Authors: | WU Shuyu LIU Jun |
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| Affiliation: | 1. The Key Laboratory of Marine Hydrocabon Resources and Environment Geology, Ministry of Land and Resource, Qingdao 266071, China;;; 2. Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266061, China;;; 3. Qingdao Insistute of Marine Geology, Qingdao 266071, China;;; 4. China University of Geosciences, Wuhan 430074, China |
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| Abstract: | The favorable exploration blocks in the eastern depression of the North Yellow Sea are developed on the slopes of a fan-delta. Sandstone reservoisr are thin in thickness with large lateral stratigraphic variations, It is difficult to define the favorable reservoirs by conventional seismic attributes method, Howeoer Time-frequency analysis technology is the best approach for the thin bed reservoirs. By studying on the characteristics of classic time-frequency analysis method, such as Short Time Fourier Transform, Continuous Wavelet Transform, Time-Frequency Continuous Wavelet Transform and S Transform, we summarized their advantages and disadvantages and the adaptability of time resolution and frequency resolution, optimized the S transform applied in the seismic data spectrum decomposition. The actual application shows that, the seismic resolution is much improved.It man describe the formation details more clearly and identify the fault boundary more effectively, also can predict the changes in sedimentary environment and classify the sedimentary facies division, the spectral decomposition is the new methods and new technology for reservoir prediction in this area. |
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| Keywords: | The North Yellow Sea eastern depression time-frequency analysis reservoir |
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