Novel wide-angle AVO attributes using rational function

• Autorzy: Xue Yaru , Xiang Jialin , Xu Xin

Identyfikatory

DOI

10.1007/s11600-019-00389-w

• Języki publikacji: EN

Abstrakty

EN

Conventional AVO inversion employs Zoeppritz equations and various approximations to them to obtain the refection coeffcients of plane-waves, which are confned to a certain (small) angle range (mostly below 40°). However, near the critical angles (wide-angle), refections at the post-critical angles provide much more potential for velocity and density inversion because of the large amplitudes and phases-shifted waveforms, while the Zoeppritz equations are not applicable anymore. Hence, there is a strong demand for the research into wide-angle AVO. With refection coefcients at wide-angle corresponding to the features of rational function, we try to approximate the seismic data with vector ftting which is used to obtain the rational zero-pole and residual properties of wide-angle AVO. We apply this technique to classify AVO type and recognize the lithology. Our experiment shows that extending our research into wide-angle AVO is very promising in gathering richer data for a more accurate seismic analysis.

Słowa kluczowe

EN

seismic measurement; lithological distinction; wide-angle AVO; rational function fitting

PL

badania sejsmiczne; rozróżnienie litologiczne

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2020
• Tom: Vol. 68, no. 1
• Strony: 123--132
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Xue Yaru

• College of Information Science and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
• State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China

autor

Xiang Jialin

• College of Information Science and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
• State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China

autor

Xu Xin

• College of Information Science and Engineering, China University of Petroleum (Beijing), Beijing 102249, China
• State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)