海、陆观测系统的拼接方法与应用

英文篇名：Marine and land geometry merging method and its application
中文刊名：石油地球物理勘探
英文刊名：Oil Geophysical Prospecting
作者：刘仁武
英文作者：Liu Ren-wu1.1.Seismic Acquisition Technology Institute ; Department of Offshore Exploration ; BGP Inc.of CNPC ; Dagang District ; Tianjin City ; 300280 ; China
中文关键词：过渡带 ; 观测系统拼接 ; 面元属性 ; 覆盖次数 ; 炮检距分布 ; 方位角属性
英文关键词：transitional zone ; geometry merging ; bin attribute ; coverage ; offset distribution ; azimuth attribute
出版日期：2009-10-15
机构：东方地球物理公司海上勘探事业部采集技术研究所;
年：2009
期：05
出版单位：石油地球物理勘探

摘要

海、陆观测系统拼接方法有:横向拼接法和纵向拼接法,检波线重叠、炮点连续衔接法和炮点重复拼接法,满覆盖资料拼接法和资料渐变带拼接法。一个优化的观测系统拼接方案应该能够使拼接处面元的属性、覆盖次数等CMP的基本属性具有连续性、一致性。为最大限度地保证海、陆观测系统拼接的优越性,在激发、接收、记录、导航定位时都要做到无缝链接,以保证所选取的观测系统具有良好的互换性以及面元属性的相似性和一致性。实例分析表明,合理的海、陆观测系统拼接方案能够实现海、陆地震资料的无缝采集,并能取得良好的采集效果。
There are several marine and land geometry merging methods,they are lateral merging method and longitudinal merging method;geophone line overlapping、shot-point consecutive joining method and shot-point consecutive merging method;full coverage zone merging method and transitional zone merging method.An optimized geometry merging method should make bin attributes,coverage time,and other CMP basic attributes consecutive and consistent over the merging zone.In order to obtain best result for the marine and land geometry merging,seamless linking should be realized during shooting、receiving、recording and navigating&positioning so that the geometry can have an excellent interchangeability,and can result in similarity and consistence for the bin attributes.The real data test shows that reasonable marine and land geometry merging method could realize seamless marine and land seismic acquisition so that the good quality seismic data can be acquired.

引文

[1]余志和等.滩海地区采集方法研究.石油地球物理勘探,2001,36(4):471～479
[2]徐锦玺等.滩浅海地震勘探采集技术应用.地球物理学进展,2005,20(1)