Because of the viscoelasticity of the subsurface medium, seismic waves will inherently attenuate during propagation, which lowers the resolution of the acquired seismic records. Inverse-Q filtering, as a typical approach to compensating for seismic attenuation, can efficiently recover high-resolution seismic data from attenuation. Whereas most efforts are focused on compensating for high- frequency energy and improving the stability of amplitude compensation by inverse-Q filtering, low-frequency leakage may occur as the high-frequency component is boosted. In this article, we propose a compensation scheme that promotes the preservation of low- frequency energy in the seismic data. We constructed an adaptive shaping operator based on spectral-shaping regularization by tailoring the frequency spectra of the seismic data. We then performed inverse-Q filtering in an inversion scheme. This data-driven shaping operator can regularize and balance the spectral-energy distribution for the compensated records and can maintain the low-frequency ratio by constraining the overcompensation for high-frequency energy. Synthetic tests and applications on prestack common-reflection-point gathers indicated that the proposed method can preserve the relative energy of low-frequency components while fulfilling stable high-frequency compensation.

QiZhen Du;WanYu Wang;WenHan Sun;Li-Yun Fu

Shandong Provincial Key Laboratory of Deep Oil&Gas,China University of Petroleum(East China),Qingdao 266580,China;Laboratory for Marine Mineral Resources,Qingdao National Laboratory for Marine Science and Technology,Qingdao 266237,China;Key Laboratory of Geophysical Prospecting,China National Petroleum Corporation(CNPC),China University of Petroleum(East China),Qingdao 266580,China;Department of Physics,University of Alberta,Edmonton,AB,T6G 2EI,Canada

地球与行星物理（英文）

[1]QiZhen Du;WanYu Wang;WenHan Sun;Li-Yun Fu-.Seismic attenuation compensation with spectral-shaping regularization)[J].地球与行星物理（英文）,2022(03):259-274

overcompensation,prestack

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