Numerical analysis of mesoscale fracture connectivity effect on seismic attenuation in fractured porous fluid-saturated media

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

Аннотация

In our study, we investigate the correlation between seismic attenuation and fracture connectivity in fractured porous fluid-saturated media. In particular, wave-induced fluid flow attenuation mechanism manifests itself between fracture-filling material and background as well as within intersecting fractures. To estimate seismic wave attenuation concerning fracture connectivity, we first statistically generate fracture networks with different percolation length through whole fracture system. Then we perform numerical modeling of plane wave propagation within generated models. Using resulting wavefields, we numerically estimate frequency-dependent attenuation. Both cases of high-permeable and almost non-permeable background are considered. Results show that the dominant parameter affecting attenuation is fracture connectivity. However, attenuation increase with connectivity increase is caused by intensifying fracture-to-background WIFF, while fracture-to-fracture WIFF remains local and depends mostly on local fracture connectivity.

Язык оригиналаанглийский
Название основной публикацииSaint Petersburg 2020 - Geosciences
Подзаголовок основной публикацииConverting Knowledge into Resources
ИздательEuropean Association of Geoscientists and Engineers, EAGE
ISBN (электронное издание)9789462823280
СостояниеОпубликовано - 2020
Событие2020 Saint Petersburg International Conference and Exhibition - Geosciences: Converting Knowledge into Resources - Saint Petersburg, Российская Федерация
Продолжительность: 6 апр 20209 апр 2020

Серия публикаций

НазваниеSaint Petersburg 2020 - Geosciences: Converting Knowledge into Resources

Конференция

Конференция2020 Saint Petersburg International Conference and Exhibition - Geosciences: Converting Knowledge into Resources
СтранаРоссийская Федерация
ГородSaint Petersburg
Период06.04.202009.04.2020

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