江陵凹陷金家场地区地震采集方法分析
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摘要
江陵凹陷金家场地区表层地震地质条件复杂,不仅激发条件差,而且还有长江穿越整个工区。2013年在金家场三维地震采集项目施工中,在长江流域附近的沙滩砾石地区采用双井激发技术提高了激发能量,在以往长江资料空白区采用空气枪激发技术弥补了剖面资料中、浅层缺失,使金家场地区地震剖面的信噪比和反射连续性得到了明显提高。
The surface layer of Jinjiachang area has a complex seismic geological condition and bad shooting condition with Yangtze River running across the whole workzone.In its 3D seismic acquisition in 2013,the way of twin-well shooting in the sand beach with gravel nearby Yangtze valley enhanced shooting energy and the way of air gun shooting in former information blank area recovered the loss of section data in central and superficial layers,improving SNR and reflection continuity of seismic section in Jinjiachang area.
The surface layer of Jinjiachang area has a complex seismic geological condition and bad shooting condition with Yangtze River running across the whole workzone.In its 3D seismic acquisition in 2013,the way of twin-well shooting in the sand beach with gravel nearby Yangtze valley enhanced shooting energy and the way of air gun shooting in former information blank area recovered the loss of section data in central and superficial layers,improving SNR and reflection continuity of seismic section in Jinjiachang area.
引文
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[3]王云峰.高分辨率空气枪阵列及子波研究[J].中国海上油气(地质),1996,10(6):111-123.