地震资料连片静校正方法的实现方法
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摘要
为了落实地质格架构造的特征,建立井震统一的等时层序结构。很多探区陆续开展了多区块的连片地震资料处理,而且连片块数越来越多,面积越来越大。由于连片处理涉及的各区块,所以往往信噪比、分辨率、波形特征等因素差异较大,增加了处理难度,特别是连片静校正技术制约着连片处理的效果。通过对影响连片静校正因素的分析,这里提出了进行连片静校正计算的四种方法,在实际应用中均取得了良好效果。同时也指出了连片静校正所产生的弊端和引起的误差。正确认识连片静校正所带来的利弊,能够更好地避免构造解释或寻找圈闭带来的失误。
For the purpose of finding out geologic features of structure framework and establishing uniform well-seismic sequences of same ages,multi-surveys merging seismic data processing has been carried out in many exploration areas.With more and more surveys being merged and the area of processing becoming larger and larger,because the difference between different surveys in signal-noise ratio,resolution and waveform characteristic is large,so it is difficult to carry out data processing.Especially the techniques of contiguous statics correction are key factor to affect the processing results.In this paper,through the analysis of the factors to affect contiguous statics results,four methods to calculate contiguous statics are proposed.The methods have achieved good results in real data processing.The abuse and errors caused by contiguous statics also are pointed out.Correct understanding of the advantages and disadvantages about contiguous statics,Mistakes in structural interpretation and search for traps can be avoided.
For the purpose of finding out geologic features of structure framework and establishing uniform well-seismic sequences of same ages,multi-surveys merging seismic data processing has been carried out in many exploration areas.With more and more surveys being merged and the area of processing becoming larger and larger,because the difference between different surveys in signal-noise ratio,resolution and waveform characteristic is large,so it is difficult to carry out data processing.Especially the techniques of contiguous statics correction are key factor to affect the processing results.In this paper,through the analysis of the factors to affect contiguous statics results,four methods to calculate contiguous statics are proposed.The methods have achieved good results in real data processing.The abuse and errors caused by contiguous statics also are pointed out.Correct understanding of the advantages and disadvantages about contiguous statics,Mistakes in structural interpretation and search for traps can be avoided.
引文
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[9]朱洪昌,玄长虹,刘群强.复杂地表区浮动基准面计算方法的优化选取[J].油气地球物理,2010(2):22.
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[13]吴波,尹成,潘树林.最大能量法剩余静校正的改进[J].石油地球物理勘探,2010(3):350.
[14]郑鸿明,杨晓海,崔琴,等.基准面校正的理论研究及误差分析[J].新疆地质,2005(1):79.
[15]唐博文,吴艳辉,刘建红,等.初至波层析静校正在三维连片处理中的应用[J].吐哈油气,2010(3):248.
[2]王西文.地震数据连片处理中的静校正建模方法[J].石油地球物理勘探,2006(4):375.
[3]何晓冬,夏忠谋.准中1区块三维资料六联片表层建模及静校正处理应用[J].中国西部油气地质,2005(1):104.
[4]王红旗,刘全新,田彦灿,等.相对保幅的地震资料连片处理方法研究[J].石油物探,2006(2):105.
[5]张志更,杨文斌,江国慧,等.三维叠前联片处理技术应用[J].吐哈油气,2007(4):375.
[6]戴军文,杨勇,李振勇,等.GRISYS系统三维地震数据连片处理及关键技术[J].石油地球物理勘探,2009(S1):56.
[7]郑鸿明,娄兵,蒋在超.复杂地貌区地震资料处理中的静校正方法[J].新疆石油地质,2002(3):214.
[8]罗英伟,段卫星,徐维秀,等.几种静校正方法的研究与比较[J].油气地球物理,2010(1):34.
[9]朱洪昌,玄长虹,刘群强.复杂地表区浮动基准面计算方法的优化选取[J].油气地球物理,2010(2):22.
[10]李隆梅,温铁民.空变V0的折射波静校正技术应用[J].石油地球物理勘探,2009(1):57.
[11]童思友,尚新民.三维折射波静校正方法及应用[J].石油地球物理勘探,2002(B09):79.
[12]郑鸿明,赵峰,常玉蓉.近似层替换的基准面静校正方法[J].新疆地质,2004(1):111.
[13]吴波,尹成,潘树林.最大能量法剩余静校正的改进[J].石油地球物理勘探,2010(3):350.
[14]郑鸿明,杨晓海,崔琴,等.基准面校正的理论研究及误差分析[J].新疆地质,2005(1):79.
[15]唐博文,吴艳辉,刘建红,等.初至波层析静校正在三维连片处理中的应用[J].吐哈油气,2010(3):248.
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