三维采集现场快捷变观设计在濮城区的应用  

Application of 3D fast on-site geometry-variable design in Pucheng area

作　　者：于冬梅[1] 温俊凤[1] 吴智强[2] 碗学俭[1] 杨素玉[1] 王永平[1] 

机构地区：[1]中原石油勘探局地球物理勘探公司,河南濮阳457001 [2]中原石油勘探局燃气管理处.河南濮阳457001

出　　处：《石油地球物理勘探》2010年第A01期9-12,共4页Oil Geophysical Prospecting

摘　　要：濮城县城区建筑物密集,地震观测激发点和接收点的布设受到极大限制,应用常规束状三维观测系统变观跨越方式难以完成地质任务,因此历次地震采集施工都避开了该城区。笔者在濮城区应用三维地震现场快捷变观采集技术,通过将地表地理信息与濮城区采集观测系统设计相结合,实现计算机自动设计、优化,可对优化设计及施工后的采集效果进行分析对比,解决了以往该区目的层资料缺失的难题,且使整个工区的覆盖次数达到了勘探设计要求。采用此套现场快捷变观采集技术的勘探风险低、设计过程便捷、施工难度小。Due to dense buildings in the urban Pucheng area,the deployment of shot points and geophones in the seismic acquisition in the area was greatly limited,the geological targets can not be realized with conventional swath geometry system in the 3D acquisition,as a result the acquisition was not conducted in the urban area in every seismic acquisition survey.By applying 3D fast on-site geometry-variable design technique in the area automatic design and optimization of the geometry was implemented by integration of GIS and geometry design,and by correlation analysis between the optimized design and the field effect after the acquisition.With application of the technique in this area,the target zone missing problem which was encountered in every acquisition in the past years got solved,and the folds for the entire survey area meet the need of the exploration design.By using the technique the exploration risk was lower,design became easier,and acquisition difficult level was decreased.

关 键 词：现场快捷变观设计 三维地震数据采集 观测系统设计 覆盖次数 炮检距 避障设计 

分 类 号：P631.443[天文地球—地质矿产勘探]