江陵凹陷速度变化规律及原因探讨
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
地震波速度是地球物理勘探和开发中最重要的一个参数。因此,结合勘探与测井等实际资料——VSP测井、地震测井、声波测井和地震速度谱资料建立速度场,通过水平切片、沿层切片以及垂直切片的方式,重点研究了江陵凹陷的纵向、横向上的速度变化规律,并系统地分析了其横向上速度变化的原因。结果表明,地层的埋藏深度、剥蚀作用、断层发育情况、玄武岩发育情况、低降速带的厚度变化等是导致江陵凹陷速度变化的重要原因。
Seismic wave velocity is the most important parameter in geophysical prospecting and development.Therefore,this paper established the velocity field in combination with prospecting and logging data,such as VSP,seismic log,acoustic log and seismic velocity spectrum.Through the study of horizontal slice,slice along layer and vertical slice,it focused on the variation rules of seismic wave velocity vertically and horizontally in Jiangling Depression,and also analyzed the cause of horizontal change of seismic wave velocity. Result shows that stratigraphic buried depth,denudation,faults development extent,basaltic intensity and variation in thickness of deceleration area are main reasons leading to velocity change in Jiangling Depression.
引文
[1]王典敷,汪仕忠.盐湖油田地质[M].北京:石油工业出版社,1998,6-9.WANG Dian-fu,WANG Shi-zhong.Salt Lake oilfield geology[M].Beijing:Petroleum Industry Press,1998,6-9.
    [2]杨长清,陈孔全,程志强,等.江陵凹陷形成演化与勘探潜力[J].天然气工业,2003,23(6):51-54.YANG Chang-qing,CHEN kong-quan,CHENG Zhi-qiang,et al.Constituent evolution and exploration potential in Jiangling depression[J].Natural Gas Industry,2003,23(6):51-54.
    [3]何又雄,查树贵,霍浩,等.江陵凹陷玄武岩覆盖区勘探方法研究[J].江汉石油科技,2005,15(2):9-12.HE You-xiong,ZHAShu-gui,HUO Hao,et al.Aexploration methodstudy on basalt in Jiangling depression[J].Jianghan Petroleum Sci-ence and Techology,2005,15(2):9-12.
    [4]李锋,曹凯,黄德芹,等.震源深度对低速带区地震波传播特征的影响[J].石油天然气学报,2005,27(2):205-207.LI Feng,CAO Kai,HUANG De-qin,et al.The effect of source depthon the characteristics of seismic wave propagation of weathering area[J].Journal of Oil and Gas Techology,2005,27(2):205-207.
    [5]陈树民,宋永忠,牛彦良.松辽盆地地层吸收特性和地震波衰减规律研究[J].地球物理学进展,2001,16(4):43-51.CHEN Shu-min,SONG Yong-zhong,NIU Yan-liang.A study on ab-sorption characteristics of rocks and the rule of wave attenuation inSongLiao Basin[J].Progress In Geophysics,2001,16(4):43-51.
    [6]毕民,王建民.基于三维叠前深度偏移的深层构造成像与应用[J].大庆石油地质与开发.2002,21(2):69-70.BI Min,WANG Jian-min.Application of 3D prestack depth migrationto geological structure imaging in deep subsurface[J].Petroleum Ge-ology&Oilfield Development In Daqing,2002,21(2):69-70.

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