直接用二维叠偏剖面统一相位的新途径——叠偏剖面闭合尺的开发与应用
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摘要
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] 。
The method of directly using 2D migrated stack secti on to plot structu ral map has been widely used in seismic prospecting. However, the phase of migra ted stack section at intersection point can not close directly, which make the t ask of unifying phases a big difficulty. In view of the problem, a specific tool ——migrated stack section closing ruler——is designed out based on the migr ation -demigration principle through the research and analysis of phase relation betw e en sections and intersections. The use of this tool can make the work of migrate d stack section phase unification easy and accurate. By using it, horizontal sec tions are not necessary, but the reliability and theoretical basis are as those of phase unification by using horizontal sections. The performance, precision, a nd effect of the patent tool are verified by the real application in Dongpu Depr ession.
The method of directly using 2D migrated stack secti on to plot structu ral map has been widely used in seismic prospecting. However, the phase of migra ted stack section at intersection point can not close directly, which make the t ask of unifying phases a big difficulty. In view of the problem, a specific tool ——migrated stack section closing ruler——is designed out based on the migr ation -demigration principle through the research and analysis of phase relation betw e en sections and intersections. The use of this tool can make the work of migrate d stack section phase unification easy and accurate. By using it, horizontal sec tions are not necessary, but the reliability and theoretical basis are as those of phase unification by using horizontal sections. The performance, precision, a nd effect of the patent tool are verified by the real application in Dongpu Depr ession.
引文
1 赵新国 ,焦大庆 ,孙青 ,等 .叠偏剖面闭合尺 .中国专利 ,ZL9732 4 757.6 ,1998- 8- 2 2
2 刘素庚 .用叠偏剖面直接编制构造图 .石油地球物理勘探 ,1984 ,19(5) :4 35～ 4 59
3 秦政 ,朱克安 .用地震叠偏剖面编制构造图的原理与方法 .石油地球物理勘探 ,1994 ,2 9(1) :4 8～ 58
4 周绪文 .反射波地震勘探方法 .北京 :石油工业出版社 ,1989
5 陆基孟 .地震勘探原理 .北京 :石油工业出版社 ,1982
2 刘素庚 .用叠偏剖面直接编制构造图 .石油地球物理勘探 ,1984 ,19(5) :4 35～ 4 59
3 秦政 ,朱克安 .用地震叠偏剖面编制构造图的原理与方法 .石油地球物理勘探 ,1994 ,2 9(1) :4 8～ 58
4 周绪文 .反射波地震勘探方法 .北京 :石油工业出版社 ,1989
5 陆基孟 .地震勘探原理 .北京 :石油工业出版社 ,1982
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