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鄂南黄土塬区由于巨厚黄土层,经过一次静校正(层析静校正)、剩余静校正处理,仍然存在较严重的静校正问题,处理成果存在与地表高程相关的假构造,影响了地震资料的解释.因此,文中提出了一种井控约束长波长静校正技术,来解决剩余的静校正量.通过研究,分析了剩余长波长静校正问题和地表高程的相关性,根据这两者的相关性和井数据,拟合得到井控长波长静校正量函数,计算全区长波长静校正量.对该方法在黄土塬区进行应用,井控约束长波长静校正技术处理后,剖面上的假构造得到消除,较好的解决了黄土覆盖区严重的静校正问题.
Due to the thick and thick loess layer in the loess plateau of E’nan, there are still more serious static correction problems after a static correction (chromatographic static correction) and residual static correction. The treatment results have fake structures related to the surface elevation and affect the earthquakes Therefore, this paper presents a well-controlled long wavelength static correction technology to solve the remaining static correction.Study and analysis of the correlation between the remaining long-wavelength static correction and surface elevation, according to both Correlation and well data, the well-controlled long wavelength static correction function is fitted to calculate the long-wavelength static correction of the whole region.The application of this method in the Loess Plateau region and the well controlled long-wavelength static correction technique, the profile On the fake structure to be eliminated, a better solution to the serious static correction of loess coverage area.