用远震接收函数研究渤海盆地的沉积覆盖
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摘要
本研究收集了华北地震台网近6年的远震数据,提取有效接收函数12000余条,对同一台站的接收函数进行了叠加;用固定值域模拟搜索技术,获得了台站下方覆盖层(沉积覆盖)的厚度和Vp/Vs比,有效数据点27个,合理地覆盖了研究区。计算结果显示,上覆地层厚度受到北东向构造影响,由北西至东南渐次增厚;Vp/Vs与上覆地层厚度和P波延时成正比,上覆地层厚度大致与Vp/Vs比成正比;上覆地层厚度与S波速度成反比,与地层的松散度成正比。研究显示,上述结果为场地条件和工程领域的研究提供了约束参数;同时,我们认为,本研究为油气勘探和油气储量计算提供了新的技术和思路。
The seismic data in our study had been collected from seismographic network in North China for the past six years,and more than 12,000 valid receiver functions had been obtained.Receiving function at every station was stacked.Thickness of overlying strata and Vp/Vs ratio at the stations were acquired using fixed range simulation search techniques.Meanwhile,twenty seven points with valid data were produced,reasonably covering the whole research area.The calculation results indicate that affected by NE-trending structure,the thickness of overlying strata is increasing gradually from northwest to southeast.The Vp/Vs ratios are in proportional to the thickness of overlying strata and time delay of P-wave time,but the thickness is in inverse proportion to S wave velocity as well as the degree of looseness of the sedimentary cover.Our research shows that above results provide constraint parameters for the site conditions and seismic engineering,at same time,we consider our research provides a new technique for the oil gas exploration and reserves calcultation.
The seismic data in our study had been collected from seismographic network in North China for the past six years,and more than 12,000 valid receiver functions had been obtained.Receiving function at every station was stacked.Thickness of overlying strata and Vp/Vs ratio at the stations were acquired using fixed range simulation search techniques.Meanwhile,twenty seven points with valid data were produced,reasonably covering the whole research area.The calculation results indicate that affected by NE-trending structure,the thickness of overlying strata is increasing gradually from northwest to southeast.The Vp/Vs ratios are in proportional to the thickness of overlying strata and time delay of P-wave time,but the thickness is in inverse proportion to S wave velocity as well as the degree of looseness of the sedimentary cover.Our research shows that above results provide constraint parameters for the site conditions and seismic engineering,at same time,we consider our research provides a new technique for the oil gas exploration and reserves calcultation.
引文
陈国光,徐杰,马宗晋,等.2004.渤海盆地现代构造运动应力场与强震活动.地震学报,26(4):396～403.
邓启东,闵伟,晃洪太.2001.渤海地区新生代构造与地震活动.见卢演畴等主编,新构造与环境,北京:地震出版社,218～233.
郭宝炎.2004.大港油气田油气勘探潜力与发展趋势.研究报告,1～31.
贺传松,周正华,李山有.1999.场地条件对输入地震动的影响.东北地震研究,15(1):53～58.
贾承造,何登发,雷振宇.2000.前陆冲断带油气勘探.北京:石油工业出版社,1～116.
贾承造,何登发,石昕,等.2006.中国油气晚期成藏特征.中国科学(D辑),36(5):412～420.
嘉世旭,张先康.2005.华北不同构造快体地壳结构及其对比研究.地球物理学报,48(3):611～620.
蔣有录.1999.渤海湾盆地盖层对天然气富集的影响初探.地质论评,45(1):26～31.
赖圣耀,陈圭璋,李丰博,等.2003.港湾地区大地监测调查与液化防治之研究.台北:台湾交通部运输研究所,1～37.
李得生.2002.渤海湾盆地油气勘探与滩海地区资源评价.见李得生主编,中国含油气盆地构造学,156～163.
刘春成,刘宝睿.2006.渤海多波地震勘探在复杂构造研究中的初步应用.铀矿地质,22(4):235～239.
刘光鼎郝天珧祝靓谊.2002.环渤海地区油气资源探查的思考.地球物理进展,17(4):559～563.
栾作峰.1989.渤海盆地石油成因的探讨.海洋科学,4:1～8.
石彪,林晓英,郭红玉.2007.上覆地层对煤气含量的控制机理.中国煤田地质,19(4):31～67.
田在艺,张庆春.2001.论改造型盆地与油气成藏——以华北东部盆地为例.石油学报,22(2):110～116.
田德培,王兰化,王丽英.2005.环渤海地区区域地壳稳定性分区与评价.地质调查与研究,28(1):47～55.
王强,刘立军,王卫东,等.2004.环渤海地区及华北平原第四纪古环境变迁机制。地质调查与研究,27(3):129～138.
王良书,刘少文,肖卫勇,等.2002.渤海盆地大地热流分布特征.科学通报,47(2):151～155.
魏兆亮,刘全稳,程有义.2006.渤海湾盆地天然气聚集差异性探讨.地质与勘探,26(3):38～41.
徐国光,徐杰,高战武.2003.华北渤海湾盆地大震的构造特征.华北地震科学,21(2):8～15..
许建聪,简文彬.2003.地脉动在泉州市区地基土层场地评价中的应用.长安大学学报(地球科学版)25(1):47～51.
许建聪,简文彬,尚岳全.2005.深厚软土层地震破坏的作用机理研究.岩土工程学报,24(2):314～320.
徐杰,马宗晋,邓起东,等.2004.渤海中部渐新世以来强烈沉陷的区域构造条件.石油学报,25(5):11～23.
徐守余.2006.渤海湾盆地构造体系与油田地质灾害.地质力学学报,12(1):6～12.
Anandakrishnan S,Winberry J P.2003.Antarctic subglacialsedimentary layer thickness from receiver function analysis.Global and Planetary Change,42(SPECI AL ISSUE):167～176.
Dueker K G,and Sheehan AF.1997.Mantle discontinuity structurefrom midpoint stacks of converted P to S waves across theYellowstone hotspot track.Journal Geophysical Research,102(B4):8313～8327.
Fountain D M and Christensen N I.1989.Composition of thecontinental crust and upper mantle:A review,in GeophysicalFramework of the Continental United States.Edited by L CPakiser and WD Mooney,Memoirs of the Geological Society ofAmerica,172:711～742.
Jones C H and Phinney R A.1998.Seismic structure of thelithosphere fromteleseismic converted arrivals observed at smallarrays in the southern Sierra-Nevada and vicinity,California.Journal of Geophysical Research,103(B5):10065～10090.
Kosarev G,Kind R,Sobolev S V,Yuan X,Hanka W,Oreshin S.1999.Seismic evidence for a detached India lithospheric mantlebeneath Tibet.Science,283:1306～1309.
Langston C A.1977.The effect of planar dipping structure onsource and receiver responses for constant ray parameter.Bulletin of the Seismological Society of America,67(4):1029～1050.
Li A,Fischer K M,Wysession M E,Clarke T J.1998.Mantlediscontinuities and temperature under the North Americancontinental keel.Nature,395:160～163.
Owans TJ,Zandt G,Taylor S R.1984.Seismic evidence for ancientrift beneath the Cumberland plateau,Tennessee:A detailedanalysis of broadband teleseismic P waveforms.Journal ofGeophysical Research,89(B9):7783～7795.
Ramesh D S,Kind R,Yuan X.2002.Receiver function analysis of theNorth American crust and upper mantle.Geophysical JournalInternational,150(1):91～108.
Zandt G,Myers S C,Wallace T C.1995.Crust and mantle structureacross the Basin and Range-Colorado Plateau boundary at37°CNlatitude and implications for Cenozoic extensional mechanism.Journal of Geophysical Research,100(B6):10529～10548.
Zandt G and Ammon C J.2002.Continental crust compositionconstrained by measurements of crustal Poisssons ratio.Nature,374:152～154.
Zhu L.2000.Crustal structure across the San Andreas Fault,southern California from teleseismic converted waves.Earthand Planetary Science Letters,179(1):183～190.
邓启东,闵伟,晃洪太.2001.渤海地区新生代构造与地震活动.见卢演畴等主编,新构造与环境,北京:地震出版社,218～233.
郭宝炎.2004.大港油气田油气勘探潜力与发展趋势.研究报告,1～31.
贺传松,周正华,李山有.1999.场地条件对输入地震动的影响.东北地震研究,15(1):53～58.
贾承造,何登发,雷振宇.2000.前陆冲断带油气勘探.北京:石油工业出版社,1～116.
贾承造,何登发,石昕,等.2006.中国油气晚期成藏特征.中国科学(D辑),36(5):412～420.
嘉世旭,张先康.2005.华北不同构造快体地壳结构及其对比研究.地球物理学报,48(3):611～620.
蔣有录.1999.渤海湾盆地盖层对天然气富集的影响初探.地质论评,45(1):26～31.
赖圣耀,陈圭璋,李丰博,等.2003.港湾地区大地监测调查与液化防治之研究.台北:台湾交通部运输研究所,1～37.
李得生.2002.渤海湾盆地油气勘探与滩海地区资源评价.见李得生主编,中国含油气盆地构造学,156～163.
刘春成,刘宝睿.2006.渤海多波地震勘探在复杂构造研究中的初步应用.铀矿地质,22(4):235～239.
刘光鼎郝天珧祝靓谊.2002.环渤海地区油气资源探查的思考.地球物理进展,17(4):559～563.
栾作峰.1989.渤海盆地石油成因的探讨.海洋科学,4:1～8.
石彪,林晓英,郭红玉.2007.上覆地层对煤气含量的控制机理.中国煤田地质,19(4):31～67.
田在艺,张庆春.2001.论改造型盆地与油气成藏——以华北东部盆地为例.石油学报,22(2):110～116.
田德培,王兰化,王丽英.2005.环渤海地区区域地壳稳定性分区与评价.地质调查与研究,28(1):47～55.
王强,刘立军,王卫东,等.2004.环渤海地区及华北平原第四纪古环境变迁机制。地质调查与研究,27(3):129～138.
王良书,刘少文,肖卫勇,等.2002.渤海盆地大地热流分布特征.科学通报,47(2):151～155.
魏兆亮,刘全稳,程有义.2006.渤海湾盆地天然气聚集差异性探讨.地质与勘探,26(3):38～41.
徐国光,徐杰,高战武.2003.华北渤海湾盆地大震的构造特征.华北地震科学,21(2):8～15..
许建聪,简文彬.2003.地脉动在泉州市区地基土层场地评价中的应用.长安大学学报(地球科学版)25(1):47～51.
许建聪,简文彬,尚岳全.2005.深厚软土层地震破坏的作用机理研究.岩土工程学报,24(2):314～320.
徐杰,马宗晋,邓起东,等.2004.渤海中部渐新世以来强烈沉陷的区域构造条件.石油学报,25(5):11～23.
徐守余.2006.渤海湾盆地构造体系与油田地质灾害.地质力学学报,12(1):6～12.
Anandakrishnan S,Winberry J P.2003.Antarctic subglacialsedimentary layer thickness from receiver function analysis.Global and Planetary Change,42(SPECI AL ISSUE):167～176.
Dueker K G,and Sheehan AF.1997.Mantle discontinuity structurefrom midpoint stacks of converted P to S waves across theYellowstone hotspot track.Journal Geophysical Research,102(B4):8313～8327.
Fountain D M and Christensen N I.1989.Composition of thecontinental crust and upper mantle:A review,in GeophysicalFramework of the Continental United States.Edited by L CPakiser and WD Mooney,Memoirs of the Geological Society ofAmerica,172:711～742.
Jones C H and Phinney R A.1998.Seismic structure of thelithosphere fromteleseismic converted arrivals observed at smallarrays in the southern Sierra-Nevada and vicinity,California.Journal of Geophysical Research,103(B5):10065～10090.
Kosarev G,Kind R,Sobolev S V,Yuan X,Hanka W,Oreshin S.1999.Seismic evidence for a detached India lithospheric mantlebeneath Tibet.Science,283:1306～1309.
Langston C A.1977.The effect of planar dipping structure onsource and receiver responses for constant ray parameter.Bulletin of the Seismological Society of America,67(4):1029～1050.
Li A,Fischer K M,Wysession M E,Clarke T J.1998.Mantlediscontinuities and temperature under the North Americancontinental keel.Nature,395:160～163.
Owans TJ,Zandt G,Taylor S R.1984.Seismic evidence for ancientrift beneath the Cumberland plateau,Tennessee:A detailedanalysis of broadband teleseismic P waveforms.Journal ofGeophysical Research,89(B9):7783～7795.
Ramesh D S,Kind R,Yuan X.2002.Receiver function analysis of theNorth American crust and upper mantle.Geophysical JournalInternational,150(1):91～108.
Zandt G,Myers S C,Wallace T C.1995.Crust and mantle structureacross the Basin and Range-Colorado Plateau boundary at37°CNlatitude and implications for Cenozoic extensional mechanism.Journal of Geophysical Research,100(B6):10529～10548.
Zandt G and Ammon C J.2002.Continental crust compositionconstrained by measurements of crustal Poisssons ratio.Nature,374:152～154.
Zhu L.2000.Crustal structure across the San Andreas Fault,southern California from teleseismic converted waves.Earthand Planetary Science Letters,179(1):183～190.
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