三维三分量地震采集技术在川西地区的应用
|
摘要
四川盆地川西拗陷深层须家河组致密砂岩气藏属于典型的非常规气藏,其储层具有超致密、裂缝发育的特点,应用常规三维地震难以解决该区储层识别、裂缝检测及油气藏描述等问题。基于此,本文论述了三维三分量(3D3C)地震勘探观测系统设计的思路和方法,提出了多波三分量检波器埋置的矢量误差分析与控制、多波勘探激发参数的选择等技术,尤其推出了高效利用有限设备、快速越过大型障碍或重干扰区的"分片分步采集"方法,最终获得了可用于储层精细描述的高品质转换波地震资料。
Tight sandstone gas reservoirs of Xujiahe group deeply buried in West Sichuan Depression belong to non-conventional reservoirs with super density and rich fracture development.It is very difficult to detect fractures and identify reservoirs on conventional 3D seismic data.To solve these problems,this article proposes a 3D3C seismic geometry design method and proposes a series of 3D3C seismic techniques in the field,such as analysis and control of three-component geophones,and source parameter optimization etc.A new way called by'acquisition by steps and blocks' is also introduced for overcoming large obstacles with limited equipment.Finally,high-quality 3D3C seismic data are acquired for reservoir characterization.
Tight sandstone gas reservoirs of Xujiahe group deeply buried in West Sichuan Depression belong to non-conventional reservoirs with super density and rich fracture development.It is very difficult to detect fractures and identify reservoirs on conventional 3D seismic data.To solve these problems,this article proposes a 3D3C seismic geometry design method and proposes a series of 3D3C seismic techniques in the field,such as analysis and control of three-component geophones,and source parameter optimization etc.A new way called by'acquisition by steps and blocks' is also introduced for overcoming large obstacles with limited equipment.Finally,high-quality 3D3C seismic data are acquired for reservoir characterization.
引文
[1]Andreas Cordsen,Mike Galbraith and John Peirce etal.Planning Land 3-D Seismic Surveys.GeophysicalDevelopments Series,9,1996
[2]徐仲达等.P-SV转换波反射系数与野外采集观测系统设计.石油物探,1996,35(1):1～12Xu Zhong-da et al.P-SV converted wave reflection co-efficient and field acquisition geometry design.GPP,1996,35(1):1～12
[3]易维启等.多分量地震勘探在松辽盆地的初步应用.石油地球物理勘探,1998,33(5):663～670Yi Wei-qi et al.The preliminary application of multi-wave and multicomponent seismic explorations inSongliao basin.OGP,1998,33(5):663～670
[4]王光杰等.多分量地震探测技术.地球物理学进展,2000,15(1):54～60Wang Guang-jie et al.Multi-component seismic ex-ploration.Progress in Geophysics,2000,15(1):54～60
[5]黄中玉.多分量地震勘探的机遇和挑战.石油物探,2001,40(2):132～137Huang Zhong-yu.The opportunity and challenge forthe multi-component seismic survey.GPP,2001,40(2):132～137
[6]Gaiser James,Moldoveanu Nick.Multi-componenttechnology:the players,problems,applications,andtrends.The Leading Edge,2001,20(9):974～977
[7]刘洋等.三维三分量地震勘探观测系统设计方法.石油地球物理勘探,2002,37(6):549～555Liu Yang et al.Design method for setup of 3-D,3-Cseismic exploration.OGP,2002,37(6):549～555
[8]董敏煜.多波多分量地震勘探.北京:石油工业出版社,2002
[9]张永刚等.目前多分量地震勘探中的几个关键问题.地球物理学报,2004,47(1):151～155Zhang Yong-Gang et al.Some key problems in themulti-component seismic exploration.Chinese Jour-nal of Geophysics,2004,47(1):151～155
[10]霍全明等.一种经济高效的三维三分量观测系统设计方法.石油地球物理勘探,2004,39(5):501～504Huo Quan-ming et al.An economic and efficientmethod for 3D,3Cgeometry design.OGP,2004,39(5):501～504
[11]钱光萍等.川西地区宽方位三维地震勘探采集技术研究.石油物探,2005,44(2):170～173Qian Guang-ping et al.3-D seismic exploration acqui-sition with wide-azimuth.GPP,2005,44(2):170～173
[12]王建民等.多分量地震勘探技术在大庆探区的应用.石油地球物理勘探,2006,41(4):426～430Wang Jian-min et al.Application of multi-componentseismic exploration in Daqing prospecting zone.OGP,2006,41(4):426～430
[13]张军华等.宽方位角地震勘探技术评述.石油地球物理勘探,2007,42(5):603～609Zhang Jun-hua et al.Summary of wide-azimuth seis-mic exploration technique.OGP,2007,42(5):603～609
[2]徐仲达等.P-SV转换波反射系数与野外采集观测系统设计.石油物探,1996,35(1):1～12Xu Zhong-da et al.P-SV converted wave reflection co-efficient and field acquisition geometry design.GPP,1996,35(1):1～12
[3]易维启等.多分量地震勘探在松辽盆地的初步应用.石油地球物理勘探,1998,33(5):663～670Yi Wei-qi et al.The preliminary application of multi-wave and multicomponent seismic explorations inSongliao basin.OGP,1998,33(5):663～670
[4]王光杰等.多分量地震探测技术.地球物理学进展,2000,15(1):54～60Wang Guang-jie et al.Multi-component seismic ex-ploration.Progress in Geophysics,2000,15(1):54～60
[5]黄中玉.多分量地震勘探的机遇和挑战.石油物探,2001,40(2):132～137Huang Zhong-yu.The opportunity and challenge forthe multi-component seismic survey.GPP,2001,40(2):132～137
[6]Gaiser James,Moldoveanu Nick.Multi-componenttechnology:the players,problems,applications,andtrends.The Leading Edge,2001,20(9):974～977
[7]刘洋等.三维三分量地震勘探观测系统设计方法.石油地球物理勘探,2002,37(6):549～555Liu Yang et al.Design method for setup of 3-D,3-Cseismic exploration.OGP,2002,37(6):549～555
[8]董敏煜.多波多分量地震勘探.北京:石油工业出版社,2002
[9]张永刚等.目前多分量地震勘探中的几个关键问题.地球物理学报,2004,47(1):151～155Zhang Yong-Gang et al.Some key problems in themulti-component seismic exploration.Chinese Jour-nal of Geophysics,2004,47(1):151～155
[10]霍全明等.一种经济高效的三维三分量观测系统设计方法.石油地球物理勘探,2004,39(5):501～504Huo Quan-ming et al.An economic and efficientmethod for 3D,3Cgeometry design.OGP,2004,39(5):501～504
[11]钱光萍等.川西地区宽方位三维地震勘探采集技术研究.石油物探,2005,44(2):170～173Qian Guang-ping et al.3-D seismic exploration acqui-sition with wide-azimuth.GPP,2005,44(2):170～173
[12]王建民等.多分量地震勘探技术在大庆探区的应用.石油地球物理勘探,2006,41(4):426～430Wang Jian-min et al.Application of multi-componentseismic exploration in Daqing prospecting zone.OGP,2006,41(4):426～430
[13]张军华等.宽方位角地震勘探技术评述.石油地球物理勘探,2007,42(5):603～609Zhang Jun-hua et al.Summary of wide-azimuth seis-mic exploration technique.OGP,2007,42(5):603～609
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