利用叠前全波形反演进行储层预测
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摘要
利用完整地震反射波形求取地层弹性参数是叠前全波形反演的核心内涵。该方法可同时提取纵、横波阻抗和泊松比等多种岩性信息,在此基础上结合孔隙结构动力学分析成果与碎屑岩弹性参数分布规律,采用聚类分析方法,了解储层与产气层空间展布规律。对四川盆地YB地区珍珠冲段的储层预测结果表明,利用叠前全波形反演与孔隙结构动力学相结合,能够解决该区复杂的致密储层与产层预测问题。
Full waveform inversion uses complete prestack seismic waveform to extract horizon elastic parameters.More lithology information such as acoustic and shear wave impedance,Poisson ratio,can be simultaneously retrieved with this method.Spatial distribution of reservoirs and gas-pays can further be predicted with pore structure dynamics analysis and multi-parameter clustering analysis.Applications of full waveform inversion in Zhenzhuchong members in YB district,Sichuan Basin show that this method has successfully predicted complex terrestrial tight gas sand reservoir and gas-pay zone in the region.
Full waveform inversion uses complete prestack seismic waveform to extract horizon elastic parameters.More lithology information such as acoustic and shear wave impedance,Poisson ratio,can be simultaneously retrieved with this method.Spatial distribution of reservoirs and gas-pays can further be predicted with pore structure dynamics analysis and multi-parameter clustering analysis.Applications of full waveform inversion in Zhenzhuchong members in YB district,Sichuan Basin show that this method has successfully predicted complex terrestrial tight gas sand reservoir and gas-pay zone in the region.
引文
[1]Tarantola A.Inversion of seismic reflection data inthe acoustic approximation.Geophysics,1984,49(8):1259~1266
[2]Tarantola A.A strategy for nonlinear elastic inver-sion of seismic reflection data.Geophysics,1986,51(10):1893~1903
[3]卞爱飞,於文辉,周华伟.频率域全波形反演方法研究进展.地球物理学进展,2010,25(3):982~993Bian Ai-fei,Yu Wen-hui,Zhou Hua-wei.Progress inthe frequency-domain full waveform inversion meth-od.Progress in Geophysics,2010,25(3):982~993
[4]Virieux J,Operto S.An overview of full-waveforminversion in exploration geophysics.Geophysics,2009,74(6):WCC1~WCC26
[5]Mallick S.Some practical aspects of prestack wave-form inversion using a genetic algorithm:An examplefrom the east Texas Woodbine gas sand.Geophysics,1999,64(2):326~336
[6]Simmons J L,Jr Backus M M.Waveform-based AVOinversion and AVO prediction-error.Geophysics,1996,61(6):1575~1588
[7]Aki K,Richards P G.Quantitative Seismology(2nded).Sausalito:University Science Books,2002
[8]Shuey R T.A simplification of the Zoeppritz equa-tions.Geophysics,1985,50(4):609~614
[9]郑晓东.Zoeppritz方程的近似及其应用.石油地球物理勘探,1991,26(2):129~144Zheng Xiao-dong.Approximation of Zoeppritz equa-tion and its application.OGP,1991,26(2):129~144
[10]Mallick S.A simple approximation to the P-wave re-flection coefficient and its implication in the inversionof amplitude variation with offset data.Geophysics,1993,58(4):544~552
[11]Fatti J L,Smith G C,Vail P J et al.Detection of gasin sandstone reservoirs using AVO analysis:a 3Dseismic case history using the geostack technique.Geophysics,1994,59(9):1362~1376
[12]杨绍国,周熙襄.Zoeppritz方程的级数表达式及近似.石油地球物理勘探,1994,29(4):399~412Yang Shao-guo and Zhou Xi-xiang.Series expressionand approximation of Zoeppritz's equation.OGP,1994,29(4):399~412
[13]Ramos C B.Useful approximations for converted-wave AVO.Geophysics,2001,66(6):1721~1734
[14]孙鹏远,孙建国,卢秀丽.P-SV波AVO方法研究进展.地球物理学进展,2003,18(4):602~607Sun Peng-yuan,Sun Jian-guo,Lu Xiu-li.Progress inresearch on the method of P-SV wave AVO.Pro-gress in Geophysics,2003,18(4):602~607
[15]张以明,康洪全,沈华,常建华.碎屑岩储层预测技术适用性研究.石油地球物理勘探,2008,43(4):447~452Zhang Yi-ming,Kang Hong-quan,Shen hua andChang Jian-hua.Study on adaptability of clastic reser-voir prediction technique.OGP,2008,43(4):447~452
[16]杨建礼.叠前敏感弹性参数及在西湖凹陷的应用研究[博士学位论文].北京:中国地质大学(北京),2006
[17]Yu Wen-hui,Jing Peng-gui,Zhu Wei et al.Abnormalpore pressure prediction of complex structure in north-east of Sichuan.SEG Technical Program ExpandedAbstracts,2009,28:2125~2129
[18]朱伟.孔隙弹性介质中的损伤因子研究[硕士学位论文].湖北武汉:中国地质大学(武汉),2010
[2]Tarantola A.A strategy for nonlinear elastic inver-sion of seismic reflection data.Geophysics,1986,51(10):1893~1903
[3]卞爱飞,於文辉,周华伟.频率域全波形反演方法研究进展.地球物理学进展,2010,25(3):982~993Bian Ai-fei,Yu Wen-hui,Zhou Hua-wei.Progress inthe frequency-domain full waveform inversion meth-od.Progress in Geophysics,2010,25(3):982~993
[4]Virieux J,Operto S.An overview of full-waveforminversion in exploration geophysics.Geophysics,2009,74(6):WCC1~WCC26
[5]Mallick S.Some practical aspects of prestack wave-form inversion using a genetic algorithm:An examplefrom the east Texas Woodbine gas sand.Geophysics,1999,64(2):326~336
[6]Simmons J L,Jr Backus M M.Waveform-based AVOinversion and AVO prediction-error.Geophysics,1996,61(6):1575~1588
[7]Aki K,Richards P G.Quantitative Seismology(2nded).Sausalito:University Science Books,2002
[8]Shuey R T.A simplification of the Zoeppritz equa-tions.Geophysics,1985,50(4):609~614
[9]郑晓东.Zoeppritz方程的近似及其应用.石油地球物理勘探,1991,26(2):129~144Zheng Xiao-dong.Approximation of Zoeppritz equa-tion and its application.OGP,1991,26(2):129~144
[10]Mallick S.A simple approximation to the P-wave re-flection coefficient and its implication in the inversionof amplitude variation with offset data.Geophysics,1993,58(4):544~552
[11]Fatti J L,Smith G C,Vail P J et al.Detection of gasin sandstone reservoirs using AVO analysis:a 3Dseismic case history using the geostack technique.Geophysics,1994,59(9):1362~1376
[12]杨绍国,周熙襄.Zoeppritz方程的级数表达式及近似.石油地球物理勘探,1994,29(4):399~412Yang Shao-guo and Zhou Xi-xiang.Series expressionand approximation of Zoeppritz's equation.OGP,1994,29(4):399~412
[13]Ramos C B.Useful approximations for converted-wave AVO.Geophysics,2001,66(6):1721~1734
[14]孙鹏远,孙建国,卢秀丽.P-SV波AVO方法研究进展.地球物理学进展,2003,18(4):602~607Sun Peng-yuan,Sun Jian-guo,Lu Xiu-li.Progress inresearch on the method of P-SV wave AVO.Pro-gress in Geophysics,2003,18(4):602~607
[15]张以明,康洪全,沈华,常建华.碎屑岩储层预测技术适用性研究.石油地球物理勘探,2008,43(4):447~452Zhang Yi-ming,Kang Hong-quan,Shen hua andChang Jian-hua.Study on adaptability of clastic reser-voir prediction technique.OGP,2008,43(4):447~452
[16]杨建礼.叠前敏感弹性参数及在西湖凹陷的应用研究[博士学位论文].北京:中国地质大学(北京),2006
[17]Yu Wen-hui,Jing Peng-gui,Zhu Wei et al.Abnormalpore pressure prediction of complex structure in north-east of Sichuan.SEG Technical Program ExpandedAbstracts,2009,28:2125~2129
[18]朱伟.孔隙弹性介质中的损伤因子研究[硕士学位论文].湖北武汉:中国地质大学(武汉),2010
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