Technologies with Two Azimuths in West Area of South China Sea:A Case Study of Zhusan Sag
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摘要: 南海西部海域珠三凹陷地区地下断裂体系复杂，不同的勘探阶段采集的地震资料，方位角窄，复杂断裂带成像困难，而同一批次采集多方位三维地震采集难度大、成本高.为了更好地实现宽方位地震成像目的，可将不同年度不同方位采集的三维地震资料结合先进的多次波去除技术和地震融合技术进行联合处理，从而间接形成一个宽方位三维地震资料，据此操作将极大地降低采集成本，从实际处理效果对比分析，该方法较好地改善了复杂断裂带的成像效果.Abstract: The fault system in the Zhusan Sag area of the western South China Sea is complex. The seismic data acquired at different exploration stages has a narrow azimuth,and it is difficult to image the complex fracture zones. The seismic data with different azimuths in the same batch need higher operation technology and higher cost.In order to achieve the purpose of wide-azimuth seismic imaging,3D seismic data acquired in different orientations in different years can be combined with advanced multiple suppression technology and seismic fusion technology to indirectly form a wide-azimuth 3D seismic data. This operation will greatly reduce the acquisition cost. The comparison and analysis of the actual imaging effect indicate this method can better improve the imaging effect of the complex fracture zone.
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Key words:
- Zhusan Sag /
- complex fault system /
- multiple suppression /
- fusion processing /
- geophysics
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图 1 不同期采集的地震方位
Fig. 1. The sketch map showing different azimuths on seismic acquisition
图 3 同一位置不同方位速度谱对比
a为2010年北东向速度资料; b为1996年北西向速度资料
Fig. 3. Velocity spectrum of the same survey area in different direction
图 4 新老资料偏移成果对比
a.149/329°处理成果；b. 16/196°处理成果；c.双方位融合后偏移成果
Fig. 4. Migration of old and new seismic data
图 5 简单模型浅水多次波射线路径示意图
Fig. 5. The sketch map of rays path about multiple in shallow water from simple model
图 6 浅水多次波压制原理
a, b为海底一次反射形成的多次波; c, d为地下地层的反射在海底形成的多次波
Fig. 6. The sketch map shows suppressing multiple in shallow water
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Feng, Q.X., Wang, Y.C., Li, S.F., et al., 2015.Model-Driving Shallow-Water-Layer Multiple Attenuation in τ-P Domain. Oil Geophysical Prospecting, 50(1):41-47, 14(in Chinese with English abstract). Grechka, V., Tsvankin, L., 2011. Seismology of Azimuthally Anisotropic Media and Seismic Fracture Characterization. The Leading Edge, 10(3):154-155. Guo, N.M., Shang, X.M., Liu, X.X., et al., 2011.Key Techniques for Non-Repeated Time-Lapse Seismic Data Processing Technology. Oil Geophysical Prospecting, 46(4):581-592, 667, 495-496(in Chinese with English abstract). James, R., Lumley, D. E., 2001.Cross-Equalization Data Processingfor Time-Lapse Seismic Reservoir Monitoring:A Case Study from the Gulf of Mexico. Geophysics, 66(4):1015-1025. https://doi.org/10.1190/1.1487049 Jia, L.K., Wu, S.G., Zhao, C.L., et al., 2014.Application of Multiple Elimination Techniques in the Deepwater Continental Margin of Northern South China Sea. Progress in Geophysics, 29(2):920-930(in Chinese with English abstract). Li, H., Chen, S.H., Zhang, Y.Z., et al., 2014.Faults in the Zhu-3 Depression of Pearl River Mouth Basin and Their Control over Hydrocarbon Accumulation. Marine Geology & Quaternary Geology, 34(3):115-124(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hydzydsjdz201403013 Li, H.T., Huang, Z., Li, Z.Y., et al., 2009.3D SRME (Surface-Related Multiple Elimination) Technique and Its Application in Deep Sea Seismic Data Processing. Oil Geophysical Prospecting, 44(S1):60-62, 167, 5(in Chinese with English abstract). http://d.old.wanfangdata.com.cn/Periodical/sydqwlkt2009z1015 Li, J., Wang, X.T.. 2008.Suppression Multiple on Shot Domain Using Transformation Method. Periodical of Ocean University of China, 38(1):121-124(in Chinese with English abstract). Li, J.L., Lei, B.H., Zheng, Q.G., et al., 2015.Stress Field Evolution and Its Controls on Oil Accumulation in the Wenchang Sag. Geotectonica et Metallogenia, 39(4):601-609(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=ddgzyckx201504004 Li, L.Q., Chen, H.J., Peng, X.C., et al., 2011.The Main Processing Methods of High-Resolution Single-Channel Seismic Data in Marine Regional Geological Survey. Geophysical and Geochemical Exploration, 35(1):86-92, 102(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=wtyht201101019 Mancini, F., Fairhead, S., King, A., 2010. Data Quality Uplift from a Dual-Azimuth Acquisition Offshore Libya. SEG Technical Program Expanded Abstracts, 29:11-15. Michell, S., Sharp, J., Chergotis, D., 2007. Dual-Azimuth Versus Wide-Azimuth Technology as Applied in Subsalt Imaging of Mad Dog Field——A Case Study. The Leading Edge, 26(4):470-478. https://doi.org/10.1190/1.2723211 Song, J.W., Verschuur, D.J., Chen, X.H., 2014.Research Status and Progress in Multiple Elimination. Progress in Geophysics, 29(1):240-247(in Chinese with English abstract). Tsvankin, I., 1997. Anisotropic Parameters and P-Wave Velocity for Orthorhombic Media. Geophysics, 62(4):1292-1309. https://doi.org/10.1190/1.1444231 Verschuur, D. J., 2006.Seismic Multiple Removal Techniques-Past, Present and Future. EAGE Publications, BV, 1-10. Wang, S.J., Yang, K., Tang, J., 2016.New Technology and Application in Marine Seismic Survey. Petroleum Industry Press, Beijing, 58-164(in Chinese). Xie, Y., Birdus, S., Sun, J., et al., 2012. Prestack Depth Imaging of Multi-Azimuth Seismic Data in the Presence of Orthorhombic Anisotropy. ASEG Extended Abstracts, 2012(1):1-4. https://doi.org/10.1071/aseg2012ab045 Xing, Z.H., Pan, J., Zhao, L.H., et al., 2016.Application of SRME to Multiple Attenuation in Shallow Profile Seismic Data. Progress in Geophysics, 31(3):1207-1215(in Chinese with English abstract) http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqwlxjz201603038 Zhang, J.H., Miao, Y.S., Zheng, X.G., et al., 2009.Discussion of Several Theoretical Questions to Remove Seismic Multiples Using Predictive Deconvolution. Computing Techniques for Geophysical and Geochemical Exploration, 31(1):6-10, 5(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=wthtjsjs200901003 Zhang, Y.Z., Zhang, K.K., Yuan, B., et al., 2014.Fault System and Structural Style of Cenozoic and Their Controlling Effects on Hydrocarbon-Forming in Wenchang Sag. Science Technology and Engineering, 14(23):26-31(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=kxjsygc201423005 Zhu, J.M., Li, L., Yang, W., et al., 2013.Multi-Azimuth Seismic Data Applied Analysis on the Exploration and Development of Wenchang Sag. Progress in Geophysics, 28(5):2587-2596(in Chinese with English abstract). http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqwlxjz201305038 冯全雄, 王彦春, 李三福, 等, 2015.τ-p域水体模型驱动压制浅水区水层多次波.石油地球物理勘探, 50(1):41-47, 14. http://d.old.wanfangdata.com.cn/Periodical/sydqwlkt201501008 郭念民, 尚新民, 刘欣欣, 等, 2011.非重复性时移地震数据关键处理技术应用研究.石油地球物理勘探, 46(4):581-592, 667, 495-496. http://d.old.wanfangdata.com.cn/Periodical/sydqwlkt201104017 贾连凯, 吴时国, 赵昌垒, 等, 2014.多次波压制技术在南海北部陆缘深水区的应用.地球物理学进展, 29(2):920-930. 李宏图, 黄志, 李振勇, 等, 2009.三维SRME技术及其在深海资料处理中的应用.石油地球物理勘探, 44(S1):60-62, 167, 5. http://d.old.wanfangdata.com.cn/Periodical/sydqwlkt2009z1015 李辉, 陈胜红, 张迎朝, 等, 2014.珠江口盆地珠三坳陷断裂特征与油气成藏.海洋地质与第四纪地质, 34(3):115-124. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=hydzydsjdz201403013 李键, 王修田, 2008.炮集域压制海水鸣震的τ-p变换法.中国海洋大学学报, 38(1):121-124. http://d.old.wanfangdata.com.cn/Periodical/qdhydxxb200801014 李俊良, 雷宝华, 郑求根, 等, 2015.珠江口盆地文昌凹陷应力场演化及其对成藏要素的控制作用.大地构造与成矿学, 39(4):601-609. http://d.old.wanfangdata.com.cn/Periodical/ddgzyckx201504004 李丽青, 陈泓君, 彭学超, 等, 2011.海洋区域地质调查中的高分辨率单道地震资料关键处理技术.物探与化探, 35(1):86-92, 102. http://d.old.wanfangdata.com.cn/Periodical/wtyht201101019 宋家文, Verschuur, D.J., 陈小宏, 等, 2014.多次波压制的研究现状与进展.地球物理学进展, 29(1):240-247. http://d.old.wanfangdata.com.cn/Periodical/dqwlxjz201401034 王守君, 杨凯, 唐进, 2016.海洋地震勘探新技术与应用.北京:石油工业出版社, 58-164. 邢子浩, 潘军, 赵俐红, 等, 2016.SRME技术在浅剖资料多次波压制中的应用.地球物理学进展, 31(3):1207-1215. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=dqwlxjz201603038 张军华, 缪彦舒, 郑旭刚, 等, 2009.预测反褶积去多次波几个理论问题探讨.物探化探计算技术, 31(1):6-10, 5. doi: 10.3969/j.issn.1001-1749.2009.01.003 张迎朝, 张坤坤, 袁冰, 等, 2014.文昌凹陷新生界断裂体系与构造样式及对油气成藏的控制作用.科学技术与工程, 14(23):26-31. doi: 10.3969/j.issn.1671-1815.2014.23.005 朱江梅, 李列, 杨薇, 等, 2013.多方位角地震资料在文昌凹陷勘探开发中的应用分析.地球物理学进展, 28(5):2587-2596. http://d.old.wanfangdata.com.cn/Periodical/dqwlxjz201305038 -
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