Amplitude anisotropy of shear-wave splitting and fluid detection in thin-layer reservoir

Yang, Chunying; Wang, Yun; Li, Xiang‑Yang

doi:10.1007/s11600-019-00375-2

Artykuł - szczegóły

Tytuł artykułu

Amplitude anisotropy of shear-wave splitting and fluid detection in thin-layer reservoir

Autorzy

Yang Chunying , Wang Yun , Li Xiang‑Yang

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-019-00375-2

Warianty tytułu

Języki publikacji

Abstrakty

Thin interbeds are typical reservoirs in eastern China. Thin layers and fractures bring huge challenge to fluid identification in anisotropic reservoir. This study focuses on thin-fractured reservoirs and amplitude attributes of shear-wave splitting, and consequently predicted fluid type in fractured reservoir based on the response of fast and slow S-waves to fluids. 3D HTI viscoelastic equation was employed to analyze amplitudes of split S-waves through fluid-filled and fractured media, including oil- and water-saturated synthetic models. Similar to velocity anisotropy, amplitude anisotropy was proposed to avoid the calculation of S-wave quality factor. Amplitude ratio and substation derived from amplitude anisotropy were used to identify fluid type. Example from the Luojia area of Shengli oilfield was used to demonstrate the effectiveness of the inversion method. Results show that amplitude ratio and amplitude subtraction are useful to distinguish fluids, while the former works better than the latter.

Słowa kluczowe

viscoelastic modelling HTI shear wave splitting amplitude anisotropy fluid detection

modelowanie lepkosprężyste HTI podział fali ścinającej anizotropia amplitudowa wykrywanie płynu

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2019

Tom

Vol. 67, no. 6

Strony

1563--1577

Opis fizyczny

Bibliogr. 49 poz.

Twórcy

autor

Yang Chunying

yangchychn@cugb.edu.cn

School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China

autor

Wang Yun

School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China

autor

Li Xiang‑Yang

CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum, Beijing, Beijing 102249, China
Edinburgh Anisotropy Project, British Geological Survey, Edinburgh EH9 3LA, UK

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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 (2020).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-1f94498c-1b67-4b6b-b9d1-30ff89c8880f