三维采集现场快捷变观设计在濮城区的应用
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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.
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.
引文
[1]马春雨,朱丽芹,冯丽华.东濮凹陷桥口工区过黄河采集技术研究.内蒙古石油化工,2010,36(7):101～102
[2]石一青,徐继伟.GMG-MESA(绿山)软件在苏北复杂地表及地质条件下地震方法设计中的应用及效果.物探装备,2005,15(3):161～165
[3]尹成,吕公河,田继东,徐锦玺,尚应军.基于地球物理目标参数的三维观测系统优化设计.石油物探,2006,45(1):74～78
[4]段卫星,邸志欣,张庆准等.SK地区目标地震勘探采集设计技术及应用效果.石油地球物理勘探,2003,38(2):117～121
[5]薛友兵,尹兵祥,冷桂林等.准噶尔盆地沙窝地高精度三维地震采集参数设计与论证.石油物探,2005,44(4):393～398
[2]石一青,徐继伟.GMG-MESA(绿山)软件在苏北复杂地表及地质条件下地震方法设计中的应用及效果.物探装备,2005,15(3):161～165
[3]尹成,吕公河,田继东,徐锦玺,尚应军.基于地球物理目标参数的三维观测系统优化设计.石油物探,2006,45(1):74～78
[4]段卫星,邸志欣,张庆准等.SK地区目标地震勘探采集设计技术及应用效果.石油地球物理勘探,2003,38(2):117～121
[5]薛友兵,尹兵祥,冷桂林等.准噶尔盆地沙窝地高精度三维地震采集参数设计与论证.石油物探,2005,44(4):393～398
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