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作为一种识别断层地震解释方法,蚂蚁追踪在勘探开发中应用越来越广泛.由于蚂蚁追踪抗噪能力较弱,在识别断层的过程中受地震资料品质的影响较大,效果往往过于破碎,改进的方法通常有两种,一种是对蚂蚁追踪的算法进行改进,另外一种是对地震资料进行去燥处理;由于算法的改进通常由研发人员提出,且集成到软件周期较长,对于解释人员而言,利用去燥处理的方式进行改进更加现实.本文提出一种利用反射强度交流分量滤波对蚂蚁追踪的效果进行改进的方法.首先对原始地震资料进行构造导向滤波,随后进行基于多道倾角扫描的相干体运算,然后利用反射强度交流分量对相干体进行滤波,并将滤波后的正值充零,最后对充零后的数据体进行蚂蚁追踪.改进后的蚂蚁追踪效果较好,提高了断层的识别精度,有利于更加精细地解释断层.
As a method to recognize fault seismic interpretation, ant tracing is more and more widely used in exploration and development.Because ant tracing has weak anti-noise ability, it is greatly influenced by seismic data quality in the process of fault recognition, and the effect is often too broken, There are usually two improved methods, one is to improve the algorithm of ant tracking, the other is to dry the seismic data. Since the improvement of the algorithm is usually proposed by the researchers and integrated into the long software cycle, Interpreter, it is more realistic to use the desiccation method to improve the ant tracking method.This paper presents a method to improve the effect of ant tracking by using the AC component filtering of reflection intensity.First, the structure-oriented filtering of the original seismic data is performed, Then, the coherent body is filtered by using the AC component of the reflection intensity, and the filtered positive value is zeroed. Finally, ant tracking is performed on the data body after zeroing. The improved ant tracking has a good effect , Improve the recognition accuracy of the fault, and help explain the fault more finely.