基于位图地质剖面的正演模型建立方法及其应用  

ESTABLISHING METHOD OF THE FORWARD MODELING BASED ON THE BITMAP GEOLOGICAL PROFILE AND ITS APPLICATION

作　　者：徐洪南 李希元[2] XU Hongnan;LI Xiyuan(Team 814 of Eastern China Geological ＆ Mining Organization for Non-ferrous Metals in Jiangshu Province, Zhenjiang 212005, China;College of Geosciences of Northeast Petroleum University, Daqing 163318, China })

机构地区：[1]江苏省有色金属华东地质勘查局814队,江苏镇江212005 [2]东北石油大学地球科学学院,黑龙江大庆163318

出　　处：《大庆石油地质与开发》2018年第1期142-146,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家重点研发计划"北方东部复合造山成矿系统深部结构与成矿过程"(2017YFC0601305)

摘　　要：正演在地震资料解释中发挥越来越重要的作用。提出了一种快速地质模型的建立及地震记录剖面的正演方法——利用微软画图实现各种二维复杂地质模型的简单快速制作,并利用位图像素RGB颜色属性建立与地质模型中地质体的速度、密度的关系,通过过对位图像素的读取及相关密度、速度的一系列计算,得到反映地质剖面的地震反射序列,在给定地震子波的情况下,应用褶积模型完成了给定地质模型的合成地震剖面的制作。研究成果为分析构造及组合地质体的地震响应,提供了简单便捷的技术手段。Forward modeling is becoming more and more important in the seismic data interpretation. The fast geological modeling and the forward method of the seismic record profile are presented i. e. with the help of Microsoft mapping,the simple and rapid building of various two-dimensional complex geological model was conducted,and moreover by using the bitmap pixel RGB color attributes,the relationships with the velocity and density of the geological bodies in the geological model were established,by means of the reading of the bitmap pixel and a series of calculation of the relative density and velocity,the seismic reflection sequence of the geological section was reflected,in the case of the given seismic wavelet,using the superposition model,the synthetic seismic profile was mapped for the given geological model. The study achievements have provided the simple and convenient technical method for analyzing the seismic responses of the tectonic and composite geologic bodies.

关 键 词：微软画图 24位BMP图 地质模型建立 地震记录剖面 

分 类 号：P631[天文地球—地质矿产勘探]