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目前三维地震资料处理仍然以“迭加”概念为基础,但是它已不是共中心点的简单迭加,而是一个共反射面元内所有道的迭加。为了提高迭加的效果,本文利用二元线性回归方法求出三维静校正时差、纵横向倾角时差和非共中心点时差。合理地利用这些时差,对于提高三维观测和弯—宽线观测的效果以及空间解释都是有益的。此法也可以单独作为三维静校正方法使用。
At present, the processing of 3D seismic data is still based on the concept of “superposition”, but it is no longer a simple superposition of common-center points, but rather a superposition of all paths in a total reflection facet. In order to improve the effect of superposition, this paper uses the binary linear regression method to find out the three-dimensional static correction time difference, vertical and horizontal inclination time difference and non-co-center time difference. The rational use of these time differences is beneficial for improving the effects of 3D observation and bend-wide observation as well as spatial interpretation. This method can also be used alone as a three-dimensional static correction method.