Time frequency domain combined deconvolution method

• Autorzy: Zhou Wei , Zhou Huailai , Long Dan , Yan Haitao , Liu Junping

Identyfikatory

DOI

10.1007/s11600-023-01129-x

• Języki publikacji: EN

Abstrakty

EN

In the process of seismic wave propagation, high-frequency energy is absorbed and attenuated by the stratum, and the dominant frequency and resolution decrease. To recover the energy of the high-frequency attenuation of seismic waves, a high-resolution processing method of time-frequency domain combined deconvolution (TFCD) is proposed. This method is different from the traditional time-frequency domain deconvolution because it considers the theory that the wavelet amplitude spectrum is smooth and has a low frequency. Wavelet separation is first conducted in the secondary spectral domain of seismic records and then smoothed in the log-domain to extract the time-frequency domain wavelet, which improves the accuracy of time-frequency domain deconvolution. This method comprehensively considers the wavelet shape and frequency characteristics, and can effectively improve seismic data resolution.

Słowa kluczowe

EN

resolution; enhance high-frequency energy; secondary spectral domain; time-frequency domain combined deconvolution

PL

rozdzielczość; wzmocnienie energii o wysokiej częstotliwości

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2024
• Tom: Vol. 72, no. 2
• Strony: 727--741
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Zhou Wei

• College of Geophysics, Chengdu University of Technology, Chengdu 610059, Sichuan, China

• https://orcid.org/0000-0002-2014-6248

autor

Zhou Huailai

• State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Key Lab of Earth Exploration and Information Techniques of Ministry of Education, College of Geophysics, Chengdu University of Technology, Chengdu 610059, Sichuan, China

autor

Long Dan

• BGP Southwest Geophysical Branch CNPC, Chengdu 610213, Sichuan, China

autor

Yan Haitao

• College of Geophysics, Chengdu University of Technology, Chengdu 610059, Sichuan, China

autor

Liu Junping

• College of Geophysics, Chengdu University of Technology, Chengdu 610059, Sichuan, China

Bibliografia

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