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将从地震资料中提取的地震子波代替S变换中的基本小波,实现了应用在地震资料中的广义S变换。通过对理论薄层模型的试验得出,基于广义S变换的频谱可将大于λ/8的薄层检测出来,证明了广义S变换具有高定位的时频谱,而且广义S变换具有自适应时频窗,输入长度不受时窗的限制等优点,克服了离散傅立叶变换时窗的局限性,因此在傅氏变换频谱分解的基础上实现了基于广义S变换的储集层频谱成像技术,并与傅氏变换频谱分解结果作了对比,取得了良好的效果,成功地应用在了印尼、塔里木、准噶尔等多个地区。
The seismic wave extracted from the seismic data instead of the basic wavelet in S transform, to achieve the generalized S transform used in seismic data. The experiments on the theoretical thin-layer model show that the spectrum based on the generalized S-transform can detect thin layers larger than λ / 8, and prove that the generalized S-transform has a high-localization time-frequency spectrum and the generalized S-transform has an adaptive time-frequency Window, the input length is not limited by the time window, etc., to overcome the limitations of the discrete Fourier transform time window, so based on the Fourier transform spectral decomposition based on the generalized S transform reservoir spectrum imaging technology, and Fourier transform spectral decomposition results made contrast, and achieved good results, successfully used in Indonesia, Tarim, Junggar and other regions.