Combining the synchrosqueezing generalized S-transform of variational mode decomposition with the Teager-Kaiser energy operator to calculate the attenuation gradient for identifying oil and gas reservoirs

• Autorzy: Yan Haitao , Zhou Huailai , Wang Yuanjun , Wu Nanke , Zhou Wei , Zhou Jie

Identyfikatory

DOI

10.1007/s11600-022-00951-z

• Języki publikacji: EN

Abstrakty

EN

Because of the limited resolution of conventional time–frequency analysis algorithms, they are also limited to calculate attenuation gradients that describe oil and gas reservoirs. We propose an advanced method for calculating the attenuation gradient that combines the synchrosqueezing generalized S-transform of variational mode decomposition with the Teager–Kaiser energy operator. SSVGST takes advantage of the synchrosqueezing generalized S-transform to focus the longitudinal resolution of the time–frequency domain and variational mode decomposition for adaptive signal segmentation in the frequency domain. Thus, SSVGST can be used to improve the time–frequency resolution of seismic signals, and the Teager–Kaiser energy operator is used to enhance the extracted attenuation gradient and highlight oil and gas regions effectively. The time–frequency focusing ability of SSVGST was verified by using a synthetic signal and theoretical model. Experimental results with the model and field data showed that the combination of SSVGST with the Teager–Kaiser energy operator suppressed the fuzzy energy caused by the low resolution of conventional time–frequency analysis algorithms and could locate reservoirs accurately and effectively.

Słowa kluczowe

EN

time-frequency analysis; Teager-Kaiser energy operator; attenuation gradient; synchrosqueezing generalized S-transform of variational mode decomposition; generalized S-transform

PL

analiza czasowo-częstotliwościowa; operator energetyczny Teagera-Kaisera; gradient tłumienia

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2023
• Tom: Vol. 71, no. 2
• Strony: 795--812
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Yan Haitao

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

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

Wang Yuanjun

• College of Geophysics, Chengdu University of Technology, Chengdu 610059, Sichuan, China
• 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
• School of Education, China West Normal University, Nanchong 637002, China

autor

Wu Nanke

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

autor

Zhou Wei

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

autor

Zhou Jie

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

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).