Anisotropic rock physics and AVO modelling for the Bowland shale

I. Anderson, J. Ma, X. Wu, D. Stow

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Seismic anisotropy is often observed in organic-rich shales due to the presence of bedding-parallel organics, pores and fractures. Anisotropic rock physics models provide a crucial tool to link sub-seismic geological variations to seismic-scale elastic parameters; and this approach is of particular importance to complex shales such as the Bowland Shale; a prospective shale-gas target in England. In this study, we use rock physics models, combined with synthetic trace and AVO models to study the impact of kerogen, porosity and fractures at a discrete impedance boundary within the Bowland Shale. Our work demonstrates the effect these anisotropic features have on seismic-scale synthetic traces across the boundary, and how the AVO signature is modified; particularly the switch from Class 3 to Class 4 at high concentrations.

Original languageEnglish
Title of host publication81st EAGE Conference and Exhibition 2019
PublisherEAGE Publishing BV
ISBN (Electronic)9789462822894
Publication statusPublished - 3 Jun 2019
Event81st EAGE Conference and Exhibition 2019 - London, United Kingdom
Duration: 3 Jun 20196 Jun 2019

Conference

Conference81st EAGE Conference and Exhibition 2019
CountryUnited Kingdom
CityLondon
Period3/06/196/06/19

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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    Anderson, I., Ma, J., Wu, X., & Stow, D. (2019). Anisotropic rock physics and AVO modelling for the Bowland shale. In 81st EAGE Conference and Exhibition 2019 EAGE Publishing BV.