基于小波变换的地震相干体算法及其应用

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基于文献[1]、文献[2]和文献[3]的相干算法,提出了利用小波域分频计算瞬时特征参数,然后计算相干体。根据研究断层特征,用分频计算相干体进行重构。马东一唐南油田上第三系浅层油田及东营组高产油田是20世纪60年代初期发现并开发的老油田,目前该区存在着种种问题:断层多,构造复杂,而且以前所钻的井并非构造有利部位。为此,采用基于小波变换的地震相干体算法以搞清断裂展布。实际资料计算表明了该方法的有效性。 Based on the coherence algorithms of [1], [2] and [3], we propose to calculate the instantaneous feature parameters by using the frequency domain of wavelet domain and then calculate the coherence body. According to the study of fault features, the coherent body is reconstructed by frequency-division calculation. Ma Dongyi Upper Triassic Shallow Oilfield and Dongying Formation High Yield Oilfield in Tangnan Oilfield is an old oil field discovered and developed in the early 1960s. Currently, there are various problems in the area: faults with many faults and complex structures, Well does not construct a favorable site. Therefore, the seismic coherence algorithm based on wavelet transform is used to find out the fracture distribution. The actual data shows that the method is effective.
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