Seismic attenuation mechanisms in fractured fluid saturated media - Numerical and field examples

E. Caspari, N. D. Barbosa, M. Novikov, V. Lisitsa, J. Hunziker, B. Quintal, G. Rubino, K. Holliger

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

Аннотация

A number of different mechanisms can cause attenuation of propagating seismic waves in a fractured fluid-saturated porous medium, notably geometrical spreading, displacement of pore fluid relative to the solid frame, and transmission losses and scattering. In this study, we examine these attenuation mechanisms using numerical forward simulations and a field example. The numerical methods include a quasi-static upscaling approach and wave propagation simulations. They are based on Biot's equations of poroelasticity and, hence, fractures are modeled as soft, highly porous and permeable features. The field examples include full-waveform sonic data from the Grimsel Test Site underground laboratory situated in a granodioritic rock mass, which exhibits both brittle and ductile deformation structures at various scales.

Язык оригиналаанглийский
Название основной публикации81st EAGE Conference and Exhibition 2019 Workshop Programme
ИздательEAGE Publishing BV
Страницы1-5
Число страниц5
Том2019
ISBN (электронное издание)9789462822924
DOI
СостояниеОпубликовано - 3 июн 2019
Событие81st EAGE Conference and Exhibition 2019 Workshop Programme - London, Великобритания
Продолжительность: 3 июн 20196 июн 2019

Серия публикаций

Название81st EAGE Conference and Exhibition 2019 Workshop Programme

Конференция

Конференция81st EAGE Conference and Exhibition 2019 Workshop Programme
СтранаВеликобритания
ГородLondon
Период03.06.201906.06.2019

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    Caspari, E., Barbosa, N. D., Novikov, M., Lisitsa, V., Hunziker, J., Quintal, B., Rubino, G., & Holliger, K. (2019). Seismic attenuation mechanisms in fractured fluid saturated media - Numerical and field examples. В 81st EAGE Conference and Exhibition 2019 Workshop Programme (Том 2019, стр. 1-5). (81st EAGE Conference and Exhibition 2019 Workshop Programme). EAGE Publishing BV. https://doi.org/10.3997/2214-4609.201901908