摘要
由于三维可视化显示技术的复杂性和任意形状、多个沉积层模型三维正演计算的复杂性,目前国内外大多采用2.5D模型。本文根据南方海相油气勘探的实际情况,编制了基于3D模型的可视化重震交互反演系统。通过理论模型的验证,对实际资料处理结果的对比,3D重震联合反演克服了2D或2.5D模型难以模拟复杂地质构造带的问题,较好地解决了海相地区地震资料品质差、信噪比低导致地震解释模糊甚至无法给出解释的困难,取得了明显的地质解释效果。
As for the complexity of 3D visualization displaying technique and the complexity of arbitrary shape and the 3D forward calculation of multi--disposition--layer model, we usually adopt 2.5D model at home and abroad. According to the marine--facies petroleum exploration in the Southern China, this paper complies the visualized combined gravity-- seismic inversion system. By the verification of the theoretical model and the comparison with the processed results of the actual data, 3D gravity--seismic inversion solves the problems that 2D or 2.5D models are unable to simulate the complex geological structures, and solves the problems that low quality of seismic data and low signal--to--noise ratio led to ambiguous interpretation or even unexplained, and finally gets a good effect on geological interpretation.
出处
《工程地球物理学报》
2008年第4期458-463,共6页
Chinese Journal of Engineering Geophysics
关键词
重震联合反演
2.5D模型
3D模型
人机交互
gravity--seismic joint inversion
2. 5D model
3D model
interactive computation
