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目前 ,直接用二维叠偏剖面编制构造图的方法在地震勘探领域的应用已十分广泛 ,但是 ,由于叠偏剖面在交点处的相位不能直接闭合 ,使统一相位的工作成了一个很大的难题。针对这一问题 ,通过对剖面及相交剖面间相位关系的研究和分析 ,根据偏移—反偏移原理 ,研制出了一种用于叠偏剖面相位闭合的专用工具———叠偏剖面闭合尺。利用这种工具可使叠偏剖面统一相位的工作变得简便而准确 ,用它可以完全甩开水平剖面 ,且具有和用水平剖面统一相位一样的可靠性和理论依据。通过在东濮凹陷的实际应用 ,证实了这一工具的性能、精度和效果 ,成果已获国家专利[1] 。
At present, the method of directing the structural map with two-dimensional superimposed sections has been widely used in the field of seismic exploration. However, since the phase of the cross section can not be directly closed at the intersection point, the work of the unified phase becomes a very large problem. In response to this problem, through the study and analysis of the phase relationship between the cross-section and the intersecting cross-section, a special tool for the phase closure of the cross-sectional profile has been developed according to the principle of migration-reverse migration. ruler. Utilizing this tool, the work of unifying the cross-section of the deviatoric section can be simplified and accurate. It can be used to completely bypass the horizontal section and have the same reliability and theoretical basis as the uniform phase of the horizontal section. Through the practical application in the Dongpu Depression, the performance, accuracy and effect of this tool have been confirmed and the result has won the national patent [1].