非胶结含水合物沉积物修正等效介质速度模型及其地震波场特征研究
|
摘要
通过数值分析,发现对应于悬浮模式、颗粒接触模式的等效介质模型A,B预测的含水合物沉积物纵波速度、横波速度及泊松比存在物理认识上的缺陷,单独考虑水合物微观模式为悬浮模式或颗粒接触模式并不合理.认为非胶结水合物的微观模式与其饱和度存在关联,并运用拉格朗日插值方法建立了新的非胶结含水合物沉积物修正等效介质速度模型.该模型体现了水合物饱和度对于水合物微观模式的影响,数值分析结果表明新模型预测结果更合理.基于新模型对非胶结含水合物沉积物的地震波场进行了数值模拟,探讨了似海底反射及空白带的形成机理,对实际水合物地震勘探中发现的不同地震波场特征对应的水合物分布模式进行了解释.
Elastic-wave velocity estimation in marine sediments with hydrates is an important part of hydrate seismic survey method and engineering. Suspending model and grain contact model are two main hydrate microscopic patterns for the non-cemented sediments with hydrates. Through numerical analysis, we discovered the velocity of compression wave and transverse wave and the Poisson's ratio forecasted by suspending model and grain contact model have bugs in physical understanding. Considering the hydrate microscopic model as the suspending model or grain contact model singly is unreasonable. We point out that the hydrate microscopic model is related with the hydrate saturation and established a modified effective medium modeling of non-cemented sediments with hydrates using the Lagrange interpolation method. This model considers the effect of hydrate saturation on the hydrate microscopic model, and the numerical analysis indicated that the new model is more reasonable. We made numerical simulation of seismic wave field based on the modified effective medium model and studied the characteristics and mechanism of BSR and blanking zone, and then expounded some phenomena observed practically based on the possiblly existing models.
Elastic-wave velocity estimation in marine sediments with hydrates is an important part of hydrate seismic survey method and engineering. Suspending model and grain contact model are two main hydrate microscopic patterns for the non-cemented sediments with hydrates. Through numerical analysis, we discovered the velocity of compression wave and transverse wave and the Poisson's ratio forecasted by suspending model and grain contact model have bugs in physical understanding. Considering the hydrate microscopic model as the suspending model or grain contact model singly is unreasonable. We point out that the hydrate microscopic model is related with the hydrate saturation and established a modified effective medium modeling of non-cemented sediments with hydrates using the Lagrange interpolation method. This model considers the effect of hydrate saturation on the hydrate microscopic model, and the numerical analysis indicated that the new model is more reasonable. We made numerical simulation of seismic wave field based on the modified effective medium model and studied the characteristics and mechanism of BSR and blanking zone, and then expounded some phenomena observed practically based on the possiblly existing models.
引文
[1]Kvenvolden K A1988Chem.Geol.7141
[2]Macdonald GJ1990Annu.Rev.Energy.1553
[3]Kvenvolden K A1988Global BiogeochemCycles2221
[4]Nisbet E G1990Can.J.Earth.Sci.27148
[5]Leggett J1990The Greenpeace Report(New York:Oxford Univ.Press)p14
[6]Paull C K,Ussler WIII,Dillon WP1991Geophys.Res.Lett.18432
[7]Markl R G,Bryan G M,Ewing J I1970Journal of Geophysical Researches754539
[8]Yan KF,Li XS,Chen Z Y,Li Gang,Tang L G,Fan S S2007Acta Phys.Sin.564994(in Chinese)[颜克凤、李小森、陈朝阳、李刚、唐良广、樊栓狮2007物理学报564994]
[9]Yan KF,Li XS,Chen Z Y,Li G,Li Z B2007Acta Phys.Sin.566727(in Chinese)[颜克凤、李小森、陈朝阳、李刚、李志宝2007物理学报566727]
[10]Paull C K,Matsumoto R,Wallace P J,Dillon WP2000Proc.ODP,Sci.Results(TX:College Station)164247
[11]Diaconescu C C,Kieckhefer R M,Knapp J H2001Marine PetroleumGeology18209
[12]Markl R G,Bryan G M,Ewing J I1970J.Geophys.Res.754539
[13]Stoll R D,Ewing J,Bryan G M1971J.Geophys.Res.762090
[14]Shipley T H,Houston M H,Buller R T1979Am.Assoc.Pet.Geol.Bull.632204
[15]Lodolo E,Camerlenghi A,Brancolini G1993Antarctic.Sci.5207
[16]Andreassen K,Hart P,Grantz A1995J.Geophys.Res.10012659
[17]Holbrook WS,Hoskins H,Wood WT,Stephen RA,Lizzarralde D1996Science2731840
[18]Kvenvolden KA,Lorenson TDA2001Merican Geophysical Union,Geophysical Monographs1243
[19]Zhang GX,Huang YY,Chen B Y2003SeismologyofNatural Gas Hydrate inthe Sea(Beijing:Ocean Press)p225(in Chinese)[张光学、黄永样、陈邦彦2003海域天然气水合物地震学(北京:海洋出版社)第225页]
[20]Ma Z T,GengJ H,Dong L G,Song HB2002Marine Geologyand Quaternary Geology221(in Chinese)[马在田、耿建华、董良国、宋海斌2002海洋地质与第四纪地质221]
[21]Ecker C2001Seismic Characterization of Methane Hydrate Structures(US:Standford University)p36
[22]Song HB,Matsubayashi O,Kuramoto S2003Chinese J.Geophys.4642(in Chinese)[宋海斌、Matsubayashi O、Kuramoto S2003地球物理学报4642]
[23]Sun C Y,Zhang MY,Niu B H,Huang X W2003Geoscience17337(in Chinese)[孙春岩、章明昱、牛滨华、黄新武2003现代地质17337]
[24]Ruan A G,Li X Y2006Journal of Marine Sciences2422(in Chinese)[阮爱国、李湘云2006海洋学研究2422]
[25]Wu Z Q,Chen J W,Gong J M,Xiao G L,Wen L2004Marine Geology Letter2025(in Chinese)[吴志强、陈建文、龚建明、肖国林、文丽2004海洋地质动态2025]
[26]Sun C Y,Zhang C Y,Niu B H,Huang X W2003Earth Science Frontiers10191(in Chinese)[孙春岩、章明昱、牛滨华、黄新武2003地学前缘10191]
[27]Sloan E D1990Clathrate Hydrate of Natural Gases(New York:Marcell Deckker,Inc)p64
[28]Wyllie M R J,Gregory A R,Gardner L W1956Geophysics2141
[29]Peason C F,Halleck P M,Mcgulre P L,Hermes R,Mathews M1983J Phys.Chem.874180
[30]Wood WT,Stoffa P L,Shipley T H1994J.Geophys.Res.999681
[31]Lee MW,Hutchinson D R,Dillon WP1996J.Geophys.Res.10120347
[32]Helgerud M B,Dovorkin J,Nur A,Sakai A,Collett T1999Geophy.Res.Lett.262021
[33]Kuster GT,Toksoz MN1974Geophysics39587
[34]Prasad M,Dvorkin J2001Petrophysics42429
[35]Williams K L,Jackson D R,Thorsos E I,Tang D,Schock S G2002IEEEJournal ofOceanic Engineering27413
[36]Dvorkin J,Nur A1993Geol.Surv.Prof.1579293
[37]Hyndman R D,Davis E E1992J.Geophys.Res.977025
[38]Hyndman R D,Spence G D1992J.Geophys.Res.976683
[39]Ecker C,Dvorkin J,Nur A2000Geophysics65565
[40]Gassmann F1951Geophysics16673
[41]Dvorkin J,Nur A1996Geophysics611363
[42]Wood A M1955Atextbook ofsound(New York:The Macmillan Company)p360
[43]Singh S C,Minshull TA,Spence G D1993Science260204
[44]Posewang J,Miener J1999Geo-Marine Lett.19157
[45]Foucher J P,Nouze H,Henry P2002Marine Geology187161
[2]Macdonald GJ1990Annu.Rev.Energy.1553
[3]Kvenvolden K A1988Global BiogeochemCycles2221
[4]Nisbet E G1990Can.J.Earth.Sci.27148
[5]Leggett J1990The Greenpeace Report(New York:Oxford Univ.Press)p14
[6]Paull C K,Ussler WIII,Dillon WP1991Geophys.Res.Lett.18432
[7]Markl R G,Bryan G M,Ewing J I1970Journal of Geophysical Researches754539
[8]Yan KF,Li XS,Chen Z Y,Li Gang,Tang L G,Fan S S2007Acta Phys.Sin.564994(in Chinese)[颜克凤、李小森、陈朝阳、李刚、唐良广、樊栓狮2007物理学报564994]
[9]Yan KF,Li XS,Chen Z Y,Li G,Li Z B2007Acta Phys.Sin.566727(in Chinese)[颜克凤、李小森、陈朝阳、李刚、李志宝2007物理学报566727]
[10]Paull C K,Matsumoto R,Wallace P J,Dillon WP2000Proc.ODP,Sci.Results(TX:College Station)164247
[11]Diaconescu C C,Kieckhefer R M,Knapp J H2001Marine PetroleumGeology18209
[12]Markl R G,Bryan G M,Ewing J I1970J.Geophys.Res.754539
[13]Stoll R D,Ewing J,Bryan G M1971J.Geophys.Res.762090
[14]Shipley T H,Houston M H,Buller R T1979Am.Assoc.Pet.Geol.Bull.632204
[15]Lodolo E,Camerlenghi A,Brancolini G1993Antarctic.Sci.5207
[16]Andreassen K,Hart P,Grantz A1995J.Geophys.Res.10012659
[17]Holbrook WS,Hoskins H,Wood WT,Stephen RA,Lizzarralde D1996Science2731840
[18]Kvenvolden KA,Lorenson TDA2001Merican Geophysical Union,Geophysical Monographs1243
[19]Zhang GX,Huang YY,Chen B Y2003SeismologyofNatural Gas Hydrate inthe Sea(Beijing:Ocean Press)p225(in Chinese)[张光学、黄永样、陈邦彦2003海域天然气水合物地震学(北京:海洋出版社)第225页]
[20]Ma Z T,GengJ H,Dong L G,Song HB2002Marine Geologyand Quaternary Geology221(in Chinese)[马在田、耿建华、董良国、宋海斌2002海洋地质与第四纪地质221]
[21]Ecker C2001Seismic Characterization of Methane Hydrate Structures(US:Standford University)p36
[22]Song HB,Matsubayashi O,Kuramoto S2003Chinese J.Geophys.4642(in Chinese)[宋海斌、Matsubayashi O、Kuramoto S2003地球物理学报4642]
[23]Sun C Y,Zhang MY,Niu B H,Huang X W2003Geoscience17337(in Chinese)[孙春岩、章明昱、牛滨华、黄新武2003现代地质17337]
[24]Ruan A G,Li X Y2006Journal of Marine Sciences2422(in Chinese)[阮爱国、李湘云2006海洋学研究2422]
[25]Wu Z Q,Chen J W,Gong J M,Xiao G L,Wen L2004Marine Geology Letter2025(in Chinese)[吴志强、陈建文、龚建明、肖国林、文丽2004海洋地质动态2025]
[26]Sun C Y,Zhang C Y,Niu B H,Huang X W2003Earth Science Frontiers10191(in Chinese)[孙春岩、章明昱、牛滨华、黄新武2003地学前缘10191]
[27]Sloan E D1990Clathrate Hydrate of Natural Gases(New York:Marcell Deckker,Inc)p64
[28]Wyllie M R J,Gregory A R,Gardner L W1956Geophysics2141
[29]Peason C F,Halleck P M,Mcgulre P L,Hermes R,Mathews M1983J Phys.Chem.874180
[30]Wood WT,Stoffa P L,Shipley T H1994J.Geophys.Res.999681
[31]Lee MW,Hutchinson D R,Dillon WP1996J.Geophys.Res.10120347
[32]Helgerud M B,Dovorkin J,Nur A,Sakai A,Collett T1999Geophy.Res.Lett.262021
[33]Kuster GT,Toksoz MN1974Geophysics39587
[34]Prasad M,Dvorkin J2001Petrophysics42429
[35]Williams K L,Jackson D R,Thorsos E I,Tang D,Schock S G2002IEEEJournal ofOceanic Engineering27413
[36]Dvorkin J,Nur A1993Geol.Surv.Prof.1579293
[37]Hyndman R D,Davis E E1992J.Geophys.Res.977025
[38]Hyndman R D,Spence G D1992J.Geophys.Res.976683
[39]Ecker C,Dvorkin J,Nur A2000Geophysics65565
[40]Gassmann F1951Geophysics16673
[41]Dvorkin J,Nur A1996Geophysics611363
[42]Wood A M1955Atextbook ofsound(New York:The Macmillan Company)p360
[43]Singh S C,Minshull TA,Spence G D1993Science260204
[44]Posewang J,Miener J1999Geo-Marine Lett.19157
[45]Foucher J P,Nouze H,Henry P2002Marine Geology187161
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心