干扰波调查技术在JS地区的应用

A technique for investigation of interference waves and its application in JS area

中国石化江苏油田,江苏扬州225009

SINOPEC Jiangsu Oilfield Company, Yangzhou 225009, China

近几年在下扬子区中古生界地震勘探中,采用了一种由沿测线的炮点和一个3D接收网组成的系统即"盒子波"进行干扰波调查的试验,并取得了较好的效果。介绍了①"盒子波"资料采集的参数设计和施工方法;②"盒子波"资料的噪音分析和组合分析,以及对角线方向组合试验、Inline方向组合试验、Crossline方向组合试验和面积组合试验;③试验记录信噪比估算和试验资料的分析、认识等。

An interference wave investigation technique called box wave method was developed in seismic exploration in the middle and lower Paleozoic formations in JS area.Box wave survey system consists of shot points and a 3 demensional receiving net. This paper discussed the aspects of the box wave method such as the parameter design and acquisition operation of the method, noise analysis and array analysis on the acquired data, as well as estimation of signal to noise ratio for seismic records data and data interpretation.