Study on acoustic velocity dispersion of carbonate rock and extrapolation of the velocity

• Autorzy: Duan Xi , Zheng Haoyue , Liu Xiangjun , Liang Lixi , Xiong Jian

Identyfikatory

DOI

10.1007/s11600-022-00947-9

• Języki publikacji: EN

Abstrakty

EN

At present, a series of petrophysical experimental studies have been carried out on the velocity dispersion and attenuation caused by wave induced fluid flow. So as many valuable theoretical models have been proposed or developed. But these studies fail to reflect the influence of different pore structure types on velocity dispersion and attenuation. Carbonate rocks have complex pore structure and strong heterogeneity. The study of the influence of pore structure on acoustic propagation characteristics at different frequencies is of great significance for further refinement of reservoir prediction. Through computed tomography scan and digital image processing, the pore structure distribution of longitudinal section of carbonate rock is obtained. On this basis, the finite difference numerical simulation of acoustic wave field is carried out, and the variation law of acoustic velocity with frequency and the relationship between acoustic velocity dispersion and attenuation coefficient are analyzed. The acoustic velocity extrapolation model based on frequency dispersion is established and compared with the experimental results to verify the effectiveness. The research results provide a theoretical basis for the prediction of carbonate reservoir parameters.

Słowa kluczowe

EN

carbonate rock; CT scan; acoustic wave; attenuation coefficient; velocity dispersion

PL

skała węglanowa; tomografia komputerowa; fala akustyczna; współczynnik tłumienia

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2023
• Tom: Vol. 71, no. 2
• Strony: 723--733
• Opis fizyczny: Bibliogr. 23 poz.

Twórcy

autor

Duan Xi

• State Key Laboratory of Oil and Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu 610500, China
• Engineering Well Logging Laboratory (Southwest Petroleum University), Key Laboratory of Well Logging, CNPC, Chengdu 610500, China

• https://orcid.org/0000-0003-0714-4923

autor

Zheng Haoyue

• State Key Laboratory of Oil and Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu 610500, China
• Engineering Well Logging Laboratory (Southwest Petroleum University), Key Laboratory of Well Logging, CNPC, Chengdu 610500, China

autor

Liu Xiangjun

• State Key Laboratory of Oil and Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu 610500, China
• Engineering Well Logging Laboratory (Southwest Petroleum University), Key Laboratory of Well Logging, CNPC, Chengdu 610500, China

autor

Liang Lixi

• State Key Laboratory of Oil and Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu 610500, China
• Engineering Well Logging Laboratory (Southwest Petroleum University), Key Laboratory of Well Logging, CNPC, Chengdu 610500, China

autor

Xiong Jian

• State Key Laboratory of Oil and Reservoir Geology and Exploitation (Southwest Petroleum University), Chengdu 610500, China
• Engineering Well Logging Laboratory (Southwest Petroleum University), Key Laboratory of Well Logging, CNPC, Chengdu 610500, 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).