叠前有色反演技术在地震岩性学研究中的应用
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摘要
地震岩性学是将地震数据通过特殊处理转化为具有明确岩性意义的岩性体,为地震地貌表征服务。该地震岩性体需要满足3个方面的要求:①数据体的幅值与岩性相关;②数据体的横向振幅相对保持;③数据体的值最好为相对值。叠前射线弹性阻抗有色反演技术,既使反演体数值与井资料靠近,又保持了反演振幅的横向相对关系,可以作为实现地震岩性体的一个关键技术。该技术在冀中坳陷饶阳凹陷蠡县斜坡实际应用中取得了很好的效果,预测结果符合研究区的地质背景和沉积规律,为地震地貌刻画提供了有利工具。
Seismic lithology and seismic geomorphology are subdisciplines of seismic sedimentology.Seismic geomorphology focuses on plane sedimentary imaging by stratal slice.Seismic lithology serves seismic geomorphology by interpreting the seismic data into a lithologic data with a clear sense of lithology cube.The seismic lithologic cube should satisfy three demands.Firstly,the amplitude of the data volume is related to lithology.Secondly,the horizontal amplitude preserved relatively.Thirdly,the value of data should be relative.The result of Ray-path elastic impedance colored inversion can be regarded as an attribute volume with lithology cube meaning for its value is close to well and horizontal amplitude is preserved relatively.This technology obtained good result in practical application of seismic lithology research at Lixian slope of Raoyang Sag in Jizhong Depression.
Seismic lithology and seismic geomorphology are subdisciplines of seismic sedimentology.Seismic geomorphology focuses on plane sedimentary imaging by stratal slice.Seismic lithology serves seismic geomorphology by interpreting the seismic data into a lithologic data with a clear sense of lithology cube.The seismic lithologic cube should satisfy three demands.Firstly,the amplitude of the data volume is related to lithology.Secondly,the horizontal amplitude preserved relatively.Thirdly,the value of data should be relative.The result of Ray-path elastic impedance colored inversion can be regarded as an attribute volume with lithology cube meaning for its value is close to well and horizontal amplitude is preserved relatively.This technology obtained good result in practical application of seismic lithology research at Lixian slope of Raoyang Sag in Jizhong Depression.
引文
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[19]Fournier F J,Borgomano J.Geological significance ofseismic reflections and imaging of the reservoir ar-chitecture in the Malampayagas field(Philippines)[J].AAPG Bulletin,2007,91(2):235-258
[20]阳孝法,张学伟,林畅松.地震地貌学研究新进展[J].特种油气藏,2008,15(6):1-5Yang X F,Zhang X W,Lin C S.New advances inseismic geomorphology[J].Special Oil and Gas Res-ervoirs,2008,15(6):1-5
[21]段如泰,金振奎,杨婷,等.地震沉积学研究中的方法和技术[J].地球物理学进展,2011,26(1):89-98Duan R T,Jin Z K,Yang T,et al.Methods and tech-niques in seismic sedimentology study[J].Progressin Geophysics,2011,26(1):89-98
[22]马劲风.地震勘探中广义弹性阻抗的正反演[J].地球物理学报,2003,46(1):118-124Ma J F.The generalized elastic impedance forwardmodeling and inversion method[J].Chinese Journalof Geophysics,2003,46(1):118-124
[23]刘力辉,王绪本.一种改进的射线弹性阻抗公式及弹性参数反演[J].石油物探,2011,50(4):155-159Liu L H,Wang X B.Elastic impedance inversionbased on an improved ray-path elastic impedanceformula[J].Geophysical Prospecting for Petroleum,2011,50(4):155-159
[2]Zeng H L,Hentz T F.High-frequency sequencestratigraphy from seismic sedimentology:applied toMiocene,Vermilion Block 50,Tiger Shoal area,off-shore Louisiana[J].AAPG Bulletin,2004,88(2):153-174
[3]Posamentier H W.Seismic stratigraphy into the nextmillennium:a focus on 3Dseismic data[R].AAPGAnnual Conference Expanded Abstracts,2000,A118
[4]Posamentier H W,Kolla V.Seismic geomorphologyand stratigraphy of depositional elements in deep-water settings[J].Journal of Sedimentary Research,2003,73(3):367-388
[5]Posamentier H W.Seismic geomorphology:imagingelements of depositional systems from shelf to deepbasin using 3Dseismic data:implications for explo-ration and development[J].Geological Society,2004,29(1):11-24
[6]Crevello P,Posamentier H W,Warmath A,et al.Pa-leo-geomorphology of carbonate systems:unravelingsedimentary geobodies and facies from karst over-print[J].Geophysical Research Abstracts,2005,7(1):05986
[7]Wood L J.Quantitative seismic geomorphology ofpliocene and miocene fluvial systems in the northerngulf of Mexico,USA[J].Journal of Sedimentary Re-search,2007,77(9):713-730
[8]Carter D C.3-D seismic geomorphology:insights in-to fluvial reservoir deposition and performance,Widuri field,Java Sea[J].AAPG Bulletin,2003,87(6):909-934
[9]Zeng H L.Seismic geomorphology-based facies clas-sification[J].The Leading Edge,2004,23(7):644-645
[10]Gee M J R,Gawthorpe R,Friedmann S J.Triggeringand evolution of a giant submarine landslide,off-shore angola,revealed by 3D seismic stratigraphyand geomorphology[J].Journal of Sedimentary Re-search,2006,76(1):9-19
[11]Gee M J R,Gawthorpe R L,Bakke K,et a1.Seismicgeomorphology and evolution of submarine channelsfrom the angolan continental Margin[J].Journal ofSedimentary Research,2007,77(5):433-446
[12]Cross N E,Alan C,Cook R J,et al.Three-dimen-sional seismic geomorphology of a deep-water slope-channel system:the sequoia field,offshore west niledelta,egypt[J].AAPG Bulletin,2009,93(8):1063-1086
[13]Cummings D I,Hart B S,William R,et al.Sedimen-tology and stratigraphy of a thick,areally extensivefluvial-marine transition,Missisauga Formation,off-shore Nova Scotia,and its correlation with shelfmargin and slope strata[J].Bulletin of Canadian Pe-troleum Geology,2006,54(2):152-174
[14]Cacas M C,Laigle J M,Albouy E,et a1.Integratingstratigraphic modelling and seismic interpretation:two practical examples[J].Petroleum Geoscience,2008,14(3):253-261
[15]Sawyer D E,Flemings P B,Craig S R,et a1.Seismicgeomorphology,lithology,and evolution of the latePleistocene Mars-Ursa turbidite region,MississippiCanyon area,northern Gulf of Mexico[J].AAPGBulletin,2007,91(2):215-234
[16]Tye R S.Geomorphology:an approach to determi-ning subsurface reservoir dimensions[J].AAPGBulletin,2004,88(8):1123-1147
[17]Stewart S A,Reeds A.Geomorphology of kilometer-scale extensional fault scarps:factors that impactseismic interpretation[J].AAPG Bulletin,2003,87(2):251-272
[18]Baaske U P,Mutti M,Baioni F,et a1.Using multi-at-tribute neural networks c1assification for seismic car-bonate facies mapping;a workflow example from Mid-Cretaceous Persian Gulf deposits[J].Geological SocietySpecial Publications,2007,277(1):105-120
[19]Fournier F J,Borgomano J.Geological significance ofseismic reflections and imaging of the reservoir ar-chitecture in the Malampayagas field(Philippines)[J].AAPG Bulletin,2007,91(2):235-258
[20]阳孝法,张学伟,林畅松.地震地貌学研究新进展[J].特种油气藏,2008,15(6):1-5Yang X F,Zhang X W,Lin C S.New advances inseismic geomorphology[J].Special Oil and Gas Res-ervoirs,2008,15(6):1-5
[21]段如泰,金振奎,杨婷,等.地震沉积学研究中的方法和技术[J].地球物理学进展,2011,26(1):89-98Duan R T,Jin Z K,Yang T,et al.Methods and tech-niques in seismic sedimentology study[J].Progressin Geophysics,2011,26(1):89-98
[22]马劲风.地震勘探中广义弹性阻抗的正反演[J].地球物理学报,2003,46(1):118-124Ma J F.The generalized elastic impedance forwardmodeling and inversion method[J].Chinese Journalof Geophysics,2003,46(1):118-124
[23]刘力辉,王绪本.一种改进的射线弹性阻抗公式及弹性参数反演[J].石油物探,2011,50(4):155-159Liu L H,Wang X B.Elastic impedance inversionbased on an improved ray-path elastic impedanceformula[J].Geophysical Prospecting for Petroleum,2011,50(4):155-159
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