地震数据采集系统的绕接与蛇形排列技术
|
摘要
在Sercel 400系列地震数据采集系统中,采集链上的采集单元结构化和数据传输网络化,使复杂地形地物条件下的地震数据采集排列方式灵活便捷,变化多样。FDU、LAUX等采集单元中Marker与Detour的属性设置,是实现排列形式多样化主要控制选项。在野外实践中,根据测区内障碍物对观测系统影响的差异,提出了4种典型的排列单元联接方法如交叉线绕接法、跳接法、无电缆连接法及蛇形排列法,并对不同联接方法的参数设置进行了说明。在山东东山王楼煤矿二、三采区三维地震数据采集工程中,受村庄街道的影响,导致东西方向正常束线布设困难,利用南北向布设的便利及蛇形联接方法,对桩号重新编号,并在后期处理中对CDP面元进行再分配,实现与正常三维束线CDP网格的统一。处理后的地震时间剖面较其它布设方式,数据采集质量良好,村庄的影响几乎达到可以忽略的效果。
In the Sercel 400 series seismic data acquisition system,acquisition unit structuring and data transmission networking on the acquisition chain make the seismic data acquisition arrangement flexible,convenient and diversity.The attribute setting of Marker and Detour in FDU,LAUX acquisition units is the main control options to realize arrangement diversification.In the field practice,according to impacting difference of obstructers in prospecting area on field setup,4 typical connection methods of arrangement unit such as cross-line wire-wrap,jumper,without cable and serpentine arrangement,explained parameter setting for different connection method.During the 3D seismic data acquisition process in the second and third winning districts of Wanglou coalmine,Dongshan,Shandong,because of impact from village streets have caused difficult in EW normal beam lines layout.Using facilitated NS layout and serpentine connection,have renumbered the piles,and carried out CDP surface element redistribution during post processing,realized unification with normal 3D beam line CDP grid.Processed seismic time sections in comparison to other layout,have favorable data acquisition quality,while impact from villages can almost be ignored.
In the Sercel 400 series seismic data acquisition system,acquisition unit structuring and data transmission networking on the acquisition chain make the seismic data acquisition arrangement flexible,convenient and diversity.The attribute setting of Marker and Detour in FDU,LAUX acquisition units is the main control options to realize arrangement diversification.In the field practice,according to impacting difference of obstructers in prospecting area on field setup,4 typical connection methods of arrangement unit such as cross-line wire-wrap,jumper,without cable and serpentine arrangement,explained parameter setting for different connection method.During the 3D seismic data acquisition process in the second and third winning districts of Wanglou coalmine,Dongshan,Shandong,because of impact from village streets have caused difficult in EW normal beam lines layout.Using facilitated NS layout and serpentine connection,have renumbered the piles,and carried out CDP surface element redistribution during post processing,realized unification with normal 3D beam line CDP grid.Processed seismic time sections in comparison to other layout,have favorable data acquisition quality,while impact from villages can almost be ignored.
引文
[1]吴奕峰,张兴平.地震数学模型技术在煤矿采区地震勘探观测系统设计中的应用[J].中国煤炭地质,2009,21(10).
[2]武磊彬,郭龙芳,束双伟.Klseis软件在复杂地表地区三维地震勘探设计中的应用[J].中国煤炭地质,2009,21(S2).
[3]王文良.从428XL的推出看地震数据采集系统的新发展[J].物探装备,2006,(1):1-15.
[4]程怡.山东东山王楼煤矿二、三采区三维地震勘探报告[R].江苏:南京江苏煤炭地质物测队.2010,(6)
[5]吴奕峰,张兴平.地震数学模型技术在煤矿采区地震勘探观测系统设计中的应用[J].中国煤炭地质,2009,21(10).
[6]常锁亮,唐永洪,陈强,等.煤田三维地震勘探的观测系统设计现状与讨论[J].中国煤炭地质,2008,20(9).
[7]李庆珍.地震勘探三维观测系统设计[J].中国煤田地质,1998,10(2).
[2]武磊彬,郭龙芳,束双伟.Klseis软件在复杂地表地区三维地震勘探设计中的应用[J].中国煤炭地质,2009,21(S2).
[3]王文良.从428XL的推出看地震数据采集系统的新发展[J].物探装备,2006,(1):1-15.
[4]程怡.山东东山王楼煤矿二、三采区三维地震勘探报告[R].江苏:南京江苏煤炭地质物测队.2010,(6)
[5]吴奕峰,张兴平.地震数学模型技术在煤矿采区地震勘探观测系统设计中的应用[J].中国煤炭地质,2009,21(10).
[6]常锁亮,唐永洪,陈强,等.煤田三维地震勘探的观测系统设计现状与讨论[J].中国煤炭地质,2008,20(9).
[7]李庆珍.地震勘探三维观测系统设计[J].中国煤田地质,1998,10(2).
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