生物礁地震响应特征的数值模拟
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摘要
为了有效地识别生物礁的地震响应特征,采用频率—波数域的波动方程数值模拟方法,对时间剖面上生物礁的各种典型特征进行了数值模拟,提出了将地震正演与深度偏移相结合的地震数值模拟流程,有效地检验了生物礁解释成果的正确性。在二维模拟的基础上,采用三维波动方程延拓方法实现了三维环礁模型的地震数值模拟,得到了时间剖面上环礁的各种地震反射特征。理论和实际生物礁的模拟记录仅包含地震波的反射和绕射特征,信噪比高,有助于消除实际生物礁地震解释的多解性。
Many features of reef in seismic time profile were numerically simulated by the way of F-K wave equation modeling to effectively recognize seismic response features of reef. A calculation program by combining seismic forward with depth migration was proposed to test the explanation for reef. Based on the 2-D seismic modeling, the continuation method of 3-D wave equation was applied to realize poststack forward modeling of 3-D atoll model. Many representative response features in different seismic profiles were obtained. The simulated synthetic records only contain the primary reflections and diffractions with high signal-to-noise ratio, which is available for eliminating the multiplicity of reef seismic interpretation.
Many features of reef in seismic time profile were numerically simulated by the way of F-K wave equation modeling to effectively recognize seismic response features of reef. A calculation program by combining seismic forward with depth migration was proposed to test the explanation for reef. Based on the 2-D seismic modeling, the continuation method of 3-D wave equation was applied to realize poststack forward modeling of 3-D atoll model. Many representative response features in different seismic profiles were obtained. The simulated synthetic records only contain the primary reflections and diffractions with high signal-to-noise ratio, which is available for eliminating the multiplicity of reef seismic interpretation.
引文
[1]卫平生,刘全新,张景廉,等.再论生物礁与大油气田的关系[J].石油学报,2006,27(2):38-42.Wei Pingsheng,Liu Quanxin,Zhang Jinglian.Re-discussion of re-lationship between reef and giant oil-gas field[J].Acta Petrolei Sinica,2006,27(2):38-42.
[2]凡睿,高林,何莉,等.川东北飞仙关组鲕滩储层地震预测[J].勘探地球物理进展,2003,26(3):199-203.Fan Rui,Gao Lin,He Li,et al.Prediction of oolitic beach reser-voir of Feixianguang Formation in northeast Xuanhan,North-eastern Sichuan[J].Progressin Exploration Geophysics,2003,26(3):199-203.
[3]敬朋贵.川东北地区礁滩相储层预测技术与应用[J].石油物探,2007,46(4):363-369.Jing Penggui.Reservoir prediction technology of reef-flat facies in northeast Sichuan province andits application[J].Geophysical Prospecting for Petroleum,2007,46(4):363-369.
[4]Yil maz OZ.Seismic data analysis[M].Tulsa:Society of Explora-tion Geophysicists,2001.
[5]贺振华.反射地震资料偏移处理与反演方法[M].重庆:重庆大学出版社,1989.He Zhenhua.Reflective seismic data migration and inversion method[M].Chongqing:Chongqing University Press,1989.
[6]熊晓军,贺振华,黄德济.三维波动方程正演及模型应用研究[J].石油物探,2005,44(6):554-556.Xiong Xiaojun,He Zhenhua,Huang Deji.The application of3-D wave equation forward and modeling[J].Geophysical Prospec-ting for Petroleum,2005,44(6):554-556.
[7]Gazdag J,Sguazzero P.Migration of seismic data by phase shift plus interpolation[J].Geophysics,1984,49(2):124-131.
[8]Sheriff R E,Geldart L P.Exploration seismology[M].2nd ed.New York:Cambridge University Press,1995.
[9]曾鼎乾,刘炳温,黄蕴明.中国各地质历史时期生物礁[M].北京:石油工业出版社,1988.Zeng Dingqian,Liu Bingwen,Huang Yunming.Chinese reefs in different geological period[M].Beijing:Petroleum Industry Press,1988.
[10]胡平忠,王金忠.珠江口盆地第三纪生物礁[M]∥范嘉松.中国生物礁与油气.北京:海洋出版社,1996:294-323.Hu Pingzhong,Wang Jinzhong.Tertiary reefs of Pearl River Mouth Basin[M]∥Fan Jiasong.Chinese reefs and oil-gas sources.Beijing:Ocean Press,1996:294-323.
[2]凡睿,高林,何莉,等.川东北飞仙关组鲕滩储层地震预测[J].勘探地球物理进展,2003,26(3):199-203.Fan Rui,Gao Lin,He Li,et al.Prediction of oolitic beach reser-voir of Feixianguang Formation in northeast Xuanhan,North-eastern Sichuan[J].Progressin Exploration Geophysics,2003,26(3):199-203.
[3]敬朋贵.川东北地区礁滩相储层预测技术与应用[J].石油物探,2007,46(4):363-369.Jing Penggui.Reservoir prediction technology of reef-flat facies in northeast Sichuan province andits application[J].Geophysical Prospecting for Petroleum,2007,46(4):363-369.
[4]Yil maz OZ.Seismic data analysis[M].Tulsa:Society of Explora-tion Geophysicists,2001.
[5]贺振华.反射地震资料偏移处理与反演方法[M].重庆:重庆大学出版社,1989.He Zhenhua.Reflective seismic data migration and inversion method[M].Chongqing:Chongqing University Press,1989.
[6]熊晓军,贺振华,黄德济.三维波动方程正演及模型应用研究[J].石油物探,2005,44(6):554-556.Xiong Xiaojun,He Zhenhua,Huang Deji.The application of3-D wave equation forward and modeling[J].Geophysical Prospec-ting for Petroleum,2005,44(6):554-556.
[7]Gazdag J,Sguazzero P.Migration of seismic data by phase shift plus interpolation[J].Geophysics,1984,49(2):124-131.
[8]Sheriff R E,Geldart L P.Exploration seismology[M].2nd ed.New York:Cambridge University Press,1995.
[9]曾鼎乾,刘炳温,黄蕴明.中国各地质历史时期生物礁[M].北京:石油工业出版社,1988.Zeng Dingqian,Liu Bingwen,Huang Yunming.Chinese reefs in different geological period[M].Beijing:Petroleum Industry Press,1988.
[10]胡平忠,王金忠.珠江口盆地第三纪生物礁[M]∥范嘉松.中国生物礁与油气.北京:海洋出版社,1996:294-323.Hu Pingzhong,Wang Jinzhong.Tertiary reefs of Pearl River Mouth Basin[M]∥Fan Jiasong.Chinese reefs and oil-gas sources.Beijing:Ocean Press,1996:294-323.
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