干扰波调查方法在高密度地震采集中的应用
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摘要
介绍了3种干扰波调查方法,给出了各种方法的优点及适用范围。在LJ地区,分别利用方形排列调查法及生产排列噪声录制法进行干扰波调查,分析了干扰波场特征,确定研究区高密度采集道距为12.5m。LJ地区高密度采集结果表明,应用干扰波调查方法以后,消除了主要干扰波的空间假频,干扰波分离效果较好,剖面的信噪比和分辨率得到了提高。
Three kinds of interference wave investigation method were introduced.The advantages and applicability of the methods were givea In LJ area,square array investigation method and production array noise recording method were used to investigate the interference wave.After analyzing the characteristics of wavefield,the high-density acquisition trace interval in LJ area was selected as 12. 5m.The high-density acquisition results in LJ area demonstrated that by using interference wave investigation methods,the spatial aliasing of main interference wave was removed and the separation of interference wave obtained good result.Meanwhile,the resolution and signal-to-noise ratio of the seismic sections were increased.
Three kinds of interference wave investigation method were introduced.The advantages and applicability of the methods were givea In LJ area,square array investigation method and production array noise recording method were used to investigate the interference wave.After analyzing the characteristics of wavefield,the high-density acquisition trace interval in LJ area was selected as 12. 5m.The high-density acquisition results in LJ area demonstrated that by using interference wave investigation methods,the spatial aliasing of main interference wave was removed and the separation of interference wave obtained good result.Meanwhile,the resolution and signal-to-noise ratio of the seismic sections were increased.
引文
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[3]Long A S.The revolution in seismic resolution:high density 3D spatial sampling developments and results [EB/OL].(2011-01-16).http://www.pgs. com/upload/31219/data.pdf
[4]张永刚,王赟,尹军杰.单点高密度地震数据处理分析与初步评价[J].石油地球物理勘探,2010,45(2): 201-207
[5]孙成禹,宫同举,张玉亮,等.波动方程有限差分法中的频散与假频分析[J].石油地球物理勘探,2009,44 (1):43-48
[6]黄新武,吴律,牛滨华,等.抛物线Radon变换中的参数采样与假频[J].石油大学学报(自然科学版), 2003,27(2):27-31
[7]弗米尔.三维地震勘探设计[M].李培明,何永清,译.北京:石油工业出版社,2008:15-70,168-185
[8]王梅生,胡永贵,王秋成,等.高密度地震数据采集中参数选取方法探讨[J].勘探地球物理进展,2009,32 (6):404-408
[9]凌云,章汝杰,高军,等.方形排列干扰波调查方法研究[J].石油地球物理勘探,2000,35(2):175-184
[10]詹世凡,冉贤华.方形排列干扰波调查方法及应用[J].石油地球物理勘探,2000,35(3):307-314
[11]卫东,倪良建,田雨东.盒子波调查技术在塔中沙漠区的应用[J].新疆石油地质,2005,26(6):701-703
[12]刘景彦,李军营,孙静,等.盒子波调查干扰波的方法及应用研究[J].河南石油,2003,17(2):27-29
[13]彭涛,成云,刘建,等.哈密坳陷方形排列干扰波调查方法研究[J].新疆石油地质,2005,26(6):701-703
[14]陆基孟.地震勘探原理[M].东营:石油大学出版社, 1993:23-66
[15]蔡希玲,张俊桥.复杂地表区噪声分析技术与压噪方法应用[J].石油地球物理勘探,2002,37(S1):1-4
[16]渥·伊尔马滋.地震资料分析[M].黄绪德,袁明德,译.北京:石油工业出版社出版,2006:499-732
[17]王云专,王润秋.信号分析与处理[M].北京:石油工业出版社,2006:58-68,217-226
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