Seismic characteristics of a reef carbonate reservoir and implications for hydrocarbon exploration in deepwater of the Qiongdongnan Basin, northern South China Sea
文献类型：期刊论文
| 作者 | Wu, Shiguo1,4; Yuan, Shengqiang1,2; Zhang, Gongcheng3; Ma, Yubo1,2; Mi, Lijun5; Xu, Ning6 |
| 刊名 | MARINE AND PETROLEUM GEOLOGY
 |
| 出版日期 | 2009-06-01 |
| 卷号 | 26期号:6页码:817-823 |
| 关键词 | Qiongdongnan Basin (Qdnb) Deepwater Hydrocarbons Sequence Stratigraphy Reef Carbonate Seismic Attributes |
| ISSN号 | 0264-8172 |
| DOI | 10.1016/j.marpetgeo.2008.04.008 |
| 文献子类 | Article |
| 英文摘要 | Our analysis of approximately 40,000 km of multichannel 2-D seismic data, reef oil-field seismic data, and data from several boreholes led to the identification of two areas of reef carbonate reservoirs in deepwater areas (water depth >= 500 in) of the Qiongdongnan Basin (QDNB), northern South China Sea. High-resolution sequence stratigraphic analysis revealed that the transgressive and highstand system tracts of the mid-Miocene Meishan Formation in the Beijiao and Ledong-Lingshui Depressions developed reef carbonates. The seismic features of the reef carbonates in these two areas include chaotic bedding, intermittent internal reflections, chaotic or blank reflections, mounded reflections, and apparent amplitude anomalies, similar to the seismic characteristics of the LH11-1 reef reservoir in the Dongsha Uplift and Island Reef of the Salawati Basin, Indonesia, which house large oil fields. The impedance values of reefs in the Beijiao and Ledong-Lingshui Depressions are 8000-9000 g/cc x m/s. Impedance sections reveal that the impedance of the LH11-1 reef reservoir in the northern South China Sea is 800010000 g/cc x m/s, whereas that of pure limestone in BD23-1-1 is > 10000 g/cc x m/s. The mid-Miocene paleogeography of the Beijiao Depression was dominated by offshore and neritic environments, with only part of the southern Beijiao uplift emergent at that time. The input of terrigenous sediments was relatively minor in this area, meaning that terrigenous source areas were insignificant in terms of the Beijiao Depression: reef carbonates were probably widely distributed throughout the depression, as with the Ledong-Lingshui Depression. The combined geological and geophysical data indicate that shelf margin atolls were well developed in the Beijiao Depression, as in the Ledong-Lingshui Depression where small-scale patch or pinnacle reefs developed. These reef carbonates are promising reservoirs, representing important targets for deepwater hydrocarbon exploration. (C) 2008 Elsevier Ltd. All rights reserved.; Our analysis of approximately 40,000 km of multichannel 2-D seismic data, reef oil-field seismic data, and data from several boreholes led to the identification of two areas of reef carbonate reservoirs in deepwater areas (water depth >= 500 in) of the Qiongdongnan Basin (QDNB), northern South China Sea. High-resolution sequence stratigraphic analysis revealed that the transgressive and highstand system tracts of the mid-Miocene Meishan Formation in the Beijiao and Ledong-Lingshui Depressions developed reef carbonates. The seismic features of the reef carbonates in these two areas include chaotic bedding, intermittent internal reflections, chaotic or blank reflections, mounded reflections, and apparent amplitude anomalies, similar to the seismic characteristics of the LH11-1 reef reservoir in the Dongsha Uplift and Island Reef of the Salawati Basin, Indonesia, which house large oil fields. The impedance values of reefs in the Beijiao and Ledong-Lingshui Depressions are 8000-9000 g/cc x m/s. Impedance sections reveal that the impedance of the LH11-1 reef reservoir in the northern South China Sea is 800010000 g/cc x m/s, whereas that of pure limestone in BD23-1-1 is > 10000 g/cc x m/s. The mid-Miocene paleogeography of the Beijiao Depression was dominated by offshore and neritic environments, with only part of the southern Beijiao uplift emergent at that time. The input of terrigenous sediments was relatively minor in this area, meaning that terrigenous source areas were insignificant in terms of the Beijiao Depression: reef carbonates were probably widely distributed throughout the depression, as with the Ledong-Lingshui Depression. The combined geological and geophysical data indicate that shelf margin atolls were well developed in the Beijiao Depression, as in the Ledong-Lingshui Depression where small-scale patch or pinnacle reefs developed. These reef carbonates are promising reservoirs, representing important targets for deepwater hydrocarbon exploration. (C) 2008 Elsevier Ltd. All rights reserved. |
| 学科主题 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000266903600007 |
| 公开日期 | 2010-12-22 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/3715]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.CNOOC Res Ctr, Beijing 100027, Peoples R China 4.China Univ Petr, Qingdao 266555, Peoples R China 5.CNOOC China Ltd, Explorat Dept, Beqing 100010, Peoples R China 6.China Natl Oil & Gas Explorat & Dev Corp, Beijing 100034, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Shiguo,Yuan, Shengqiang,Zhang, Gongcheng,et al. Seismic characteristics of a reef carbonate reservoir and implications for hydrocarbon exploration in deepwater of the Qiongdongnan Basin, northern South China Sea[J]. MARINE AND PETROLEUM GEOLOGY,2009,26(6):817-823. |
| APA | Wu, Shiguo,Yuan, Shengqiang,Zhang, Gongcheng,Ma, Yubo,Mi, Lijun,&Xu, Ning.(2009).Seismic characteristics of a reef carbonate reservoir and implications for hydrocarbon exploration in deepwater of the Qiongdongnan Basin, northern South China Sea.MARINE AND PETROLEUM GEOLOGY,26(6),817-823. |
| MLA | Wu, Shiguo,et al."Seismic characteristics of a reef carbonate reservoir and implications for hydrocarbon exploration in deepwater of the Qiongdongnan Basin, northern South China Sea".MARINE AND PETROLEUM GEOLOGY 26.6(2009):817-823. |
入库方式： OAI收割
来源：海洋研究所
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