EM地区三维地震资料彩色显示的初步尝试

PRELIMINARY ATTEMPT TO COLOUR DISPLAY FOR 3-D SEISMIC DATA, EM REGION

1. 西北大学;2. 地质矿产部石油物探研究所

本文根据三维显示和彩色显示的基本原理和特点,介绍了利用密度分割和三基色合成方法进行彩色显示的各种尝试。对密度分割假彩色等时切片,三基色合成层析图,不同to时间的等时切片分色迭加图以及振幅、相位、波数(频率)的合成假彩色等时切片及时间剖面的制作原理作了简要的阐述。这些假彩色图件,有其各自的独特含义,因而可用于三维地震资料解释的不同方面。最后,本文提出了如何进一步开展地震资料彩色显示研究和应用彩色显示技术的意见。

Based on the basic principle of 3-D and colour display, some attempts to the colour display by density separation and three primary colour composition are introduced. Principles of making the density-separation on pseudo-colour isotime slices, constructing the chart of three primary colour composing layers analysis and the monochromatic Isotime slices stack chart of different T0, composing the pseudo-colour isotime slices of amplitude, phase and wave number(frequency)and forming the time section are briefly described. All these pseudo-colour pictures have their own unique implications, thus, they are available for different purposes in 3-D data interpretation. Suggestions about how to make further study on 3-D seismic colour display and the application technique of colour display are at the end of the paper.