泌阳凹陷古城地区地震资料连片处理及认识
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摘要
地震资料连片处理的目的是尽可能地克服不同年度、不同仪器、不同施工参数等造成的影响,同时消除不同的处理参数及处理流程所导致的差异。连片地震资料可以用于整体区域地震解释和地质认识。根据新老资料采集参数的特点,在静校正、叠前去噪、振幅补偿、叠前叠后提高分辨率等方面进行攻关,系统地解决了新老资料连片处理中的关键问题。通过处理资料的分析认为连片资料比较适合构造解释,而属性研究必须根据具体情况,一般是面元均化的网格与单块网格相比,网格差别大的,最好使用单块处理的资料,差别小的或者网格没有差别的,采用连片处理的资料进行研究。
Seismic data joining processing is to overcome the impacts caused by variation of years,instruments as well as operation parameters,and to eliminate differences resulting from various processing parameters and treatment scheme.Joining seismic data may be used for overall regional seismic interpretation and geology understanding.On the basis of the features of the old and new data recording parameters,this paper has systematically solved key issues in old/new data joining processing through tackling the key problems such as statics correction,noise removal before stacking,amplitude compensation as well as resolution improvement before or after stacking.Through the analysis of processed data,the author thinks that joining data is better suitable to structural interpretation,while the study of attributes must depend on specific circumstance.In general,the grid of bin equalization is compared with the monoblock grid.If there is a large grid difference,it is better to adopt the monoblock processed data,or to adopt the joining processed data.
Seismic data joining processing is to overcome the impacts caused by variation of years,instruments as well as operation parameters,and to eliminate differences resulting from various processing parameters and treatment scheme.Joining seismic data may be used for overall regional seismic interpretation and geology understanding.On the basis of the features of the old and new data recording parameters,this paper has systematically solved key issues in old/new data joining processing through tackling the key problems such as statics correction,noise removal before stacking,amplitude compensation as well as resolution improvement before or after stacking.Through the analysis of processed data,the author thinks that joining data is better suitable to structural interpretation,while the study of attributes must depend on specific circumstance.In general,the grid of bin equalization is compared with the monoblock grid.If there is a large grid difference,it is better to adopt the monoblock processed data,or to adopt the joining processed data.
引文
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[2]贺振华.反射地震资料偏移处理与反演方法[M].重庆:重庆大学出版社,1989.
[3]凌云研究组.叠后相对保持振幅处理研究[J].石油地球物理勘探,2003,38(5):100-105.
[4]王世瑞,彭苏萍,凌云,等.利用地震属性研究准噶尔盆地西北缘拐19井区下侏罗统三工河组沉积相[J].古地理学报,2005,7(2):169-184.
[5]王世瑞,王树平,狄帮让,等.基于地震属性特征的河道砂体预测方法[J].石油地球物理勘探,2009,44(3):304-313.
[6]王世瑞,狄邦让,任敦占,等.地震数据目标处理技术在松辽南部的应用[J].石油地球物理勘探,2008,43(5):518-525.
[7]王振国,陈小宏,王学军,等.沙漠地区老地震资料的叠前时间偏移[J].勘探地球物理进展,2007,30(2):211-215.
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