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宽线三维转换波资料处理方法及效果分析
引用本文:金抒辛,何樵登,王延光.宽线三维转换波资料处理方法及效果分析[J].吉林大学学报(地球科学版),2005,35(1):109-112.
作者姓名:金抒辛  何樵登  王延光
作者单位:吉林大学,地球探测科学与技术学院,吉林,长春,130026;胜利油田物探研究院,山东,东营,257000
摘    要:研究了三维转换波资料坐标旋转、面元划分及三维共转换点计算方法,即将每一个转换波共炮点道集内所有地震道进行坐标旋转,旋转后的转换波道集在炮检距、纵横波速度已知的条件下,用迭代方法计算三维转换点的平面坐标,并绘制在平面上.将平面分割为小的面元,凡是转换点在同一面元内的记录道都属于同一共反射点转换波道集,转换点面元大小与纵横波速度比有关.在上述研究的基础上,建立了宽线三维转换波资料处理流程,处理了某油田某地区的宽线转换波资料.

关 键 词:坐标旋转  面元划分  三维转换点
文章编号:1671-5888(2005)01-0109-04
修稿时间:2004年1月8日

The Processing Method and Effect Analysis of 3D Wide Line Converted Wave Data
JIN Shu-xin,HE Qiao-deng,WANG Yan-guang.The Processing Method and Effect Analysis of 3D Wide Line Converted Wave Data[J].Journal of Jilin Unviersity:Earth Science Edition,2005,35(1):109-112.
Authors:JIN Shu-xin  HE Qiao-deng  WANG Yan-guang
Abstract:We have researched a method of coordinate rotation of 3D converted wave data, binning and calculating 3D converted point, that is to make coordinate rotation for all seismic traces in each gather of converted wave common-shot point. In the condition of knowing offset and velocities of compression wave and shear wave, we have calculated the plane coordinate of 3D converted point through a stacking method and drawn it on a plane, then divided the plane into some small bins. All traces that converted-points are at a same bin should belong to a same common-reflection point gather and the size of converted-point bin is relative with the ratio of compression and shear velocity. Basing on above surveying, we have set up a processing flow of 3D wide line converted wave data and have processed wide line converted wave data of some area in some oil field. Finally we have obtained perfect results.
Keywords:coordinate rotation  binning  3D converted-point
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