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物探与化探  2021, Vol. 45 Issue (6): 1469-1474    DOI: 10.11720/wtyht.2021.1226
  方法研究·信息处理·仪器研制 本期目录 | 过刊浏览 | 高级检索 |
高密度单点接收地震采集数据的处理方法讨论
王飞(), 孙亚杰, 裴金梅, 宋建国, 李文建
东方公司 青海物探处,甘肃 敦煌 736202
A discussion on the processing method of high density single point seismic acquisition data
WANG Fei(), SUN Ya-Jie, PEI Jin-Mei, SONG Jian-Guo, LI Wen-Jian
Qinghai Geophysical Prospecting Division of BGP,Dunhuang 736202,China
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摘要 

在以往柴达木盆地地震勘探中,为了达到压制噪声的目的,常常是用大组合接收。但是随着勘探的深入,大组合的劣势逐渐显现。单检波器接收, 在数据后期处理过程中进行道组合,既能达到压制干扰的目的,又能消除大组合时道内静校正影响,有利于数据的分辨率、保真度和成像精度。本文结合盆地内尖顶山地区某条测线的数据进行了道组合处理、分析,探讨了在处理中进行道组合,完成野外检波器组合的功能的方法、流程以及应注意的问题,展示了道组合处理的效果。

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王飞
孙亚杰
裴金梅
宋建国
李文建
关键词 单点接收道组合处理处理流程    
Abstract

In the past seismic exploration in Qaidam Basin,large combination receiving has been often used in order to achieve the purpose of suppressing noise.However,as the exploration goes deeper,the disadvantages of the big combination gradually emerge.The single detector receiver can combine the channels in the post-processing of the data,which can not only suppress the interference but also eliminate the influence of statics in the large combinations,which is beneficial to the resolution, fidelity and imaging accuracy of the data.Based on the data of a survey line in the area of the peak mountain in the basin,this paper deals with and analyzes the trace combination,discusses the method,process and problems that should be paid attention to in the process of the trace combination,completes the function of the field detector combination,and shows the effect of the trace combination treatment.

Key wordssingle point reception    path combination processing    processing flow
收稿日期: 2020-05-11      修回日期: 2021-05-12      出版日期: 2021-12-20
ZTFLH:  P631.4  
基金资助:“十三五”国家重大专项课题“陆上宽频高密度地震勘探配套技术”(2017ZX05018-003)
作者简介: 王飞(1975-)男,高级工程师,2001年毕业于西南石油学院应用地球物理专业,现主要从事地震资料处理工作。Email: lwangfei@sina.com
引用本文:   
王飞, 孙亚杰, 裴金梅, 宋建国, 李文建. 高密度单点接收地震采集数据的处理方法讨论[J]. 物探与化探, 2021, 45(6): 1469-1474.
WANG Fei, SUN Ya-Jie, PEI Jin-Mei, SONG Jian-Guo, LI Wen-Jian. A discussion on the processing method of high density single point seismic acquisition data. Geophysical and Geochemical Exploration, 2021, 45(6): 1469-1474.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2021.1226      或      https://www.wutanyuhuatan.com/CN/Y2021/V45/I6/1469
Fig.1  不同道距地震数据FK谱
a、b、c、d、e—道间距分别为10,20,30,40,50 m
Fig.2  道间时差与道间距的关系
Fig.3  不同动校速度与时差关系
Fig.4  处理流程
Fig.5  不同检波器接收的单炮记录
a—常规检波器数据;b—单点检波器数据
Fig.6  去噪后单炮
a—先组合后去噪;b—先去噪后组合
Fig.7  组合前道集
a—静校正前;b—静校正后
Fig.8  动校正前(b)和动校正后(b)道集
Fig.9  动校正后道集
a—先做动校正再组合;b—先组合再做动校正后
Fig.10  叠加剖面对比
a—动静校正后组合;b—组合后做动静校正
Fig.10  不同采集方式的叠加剖面对比
a—常规流程常规检波器数据;b—本文流程单点检波器数据
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