合成地震技术
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摘要
目的:介绍合成地震技术关键步骤。方法:详细分析了由时.深转换而形成的垂直时距关系与地震资料的垂直时距关系相比存在误差的原因,提出了两种校正方法:①常用的利用垂直地震测井资料进行校正的方法;②用已经钻井证实的地面地震资料与合成地震资料做对比,找出相应的差值,作为经验校正系数进行校正。结果:以中原油田为例,通过实际处理得出在中原油田校正值为10%。结论:该方法既经济又实用。
The key procedures of synthetic seismic technology are time-depth conversion and convolu-tion. There exists difference between the relation of tirne and vertical distance from depth-time conversion andthe relation of time and vertical distance from seismic data. The paper here ana1yzes its reasons and proposes twocorrection methods. one method is the correction using vertical seismic data. Another method is the correctionusing correction coefficient from comparison the seismic data confirmed by drilling with synthetic seismic data.For example in Zhongyuan Oilfield, the correction coefficient is 10 percent. The second kind of correction rnethedis first proposed and is both economical and practical.
引文
1,楚泽涵:声波测并原理,石油工业出版社(北京),1983。

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