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江汉盆地大部分油气田与断层断块有密切关系。几年来用地震勘探断层的水平不断提高。本文介绍典型地区的经验。文中着重叙述陡构造上缓断层的解释问题:包括在地震记录上对比缓断层,识别断面反射波,空间解释问题以及断面图的应用等。其次阐述了河网地区,地表及地下地质条件比较复杂的情况下,利用波系对比解释中等断层,以及“三小”勘探的问题。最后介绍了多次复盖法试验的结果。
Most oil and gas fields in Jianghan Basin are closely related to fault blocks. In recent years, the level of seismic exploration faults has been continuously increasing. This article describes the typical region of experience. The paper focuses on the explanation of the interpretation of steep faults on steep structures: including the comparison of slow-motion seismic records, the identification of cross-section reflections, the problem of spatial interpretation, and the application of profile maps. Secondly, the article explains the problems of the “three small” exploration by using the contrast of the wave system to explain the middle fault and the three small survey under the condition of complex geological conditions in the river network, surface and underground. Finally, the result of multiple overlay test is introduced.