Characterization of the spatiotemporal variation of seismic attenuation during hydraulic fracturing of a shale block

I. Vera Rodriguez, S. Stanchits

Результат исследований: Глава в книге, отчете, сборнике статейМатериалы для конференциирецензирование

Аннотация

By representing the seismic quality factor (Q) as a random variable, we use spectral ratios of acoustic emission (AE) signals to approximate its probability distribution. This representation is used to characterize the heterogeneous and anisotropic attenuation response of a shale block subjected to hydraulic fracturing. Attenuation at the start of the experiment correlates with the imposed principal stresses, with higher stress corresponding with less attenuation. During the fracturing, changes in attenuation correlate with the borehole pressure, which supports the notion that the changes captured by the AE signals are mainly related to perturbations to the stress field. The results are also compatible with previous observations in a sandstone block fractured under similar experimental conditions.

Язык оригиналаАнглийский
Название основной публикации80th EAGE Conference and Exhibition 2018
Подзаголовок основной публикацииOpportunities Presented by the Energy Transition
ИздательEuropean Association of Geoscientists and Engineers, EAGE
ISBN (электронное издание)9789462822542
СостояниеОпубликовано - 2018
Опубликовано для внешнего пользованияДа
Событие80th EAGE Conference and Exhibition 2018: Opportunities Presented by the Energy Transition - Copenhagen, Дания
Продолжительность: 11 июн. 201814 июн. 2018

Серия публикаций

Название80th EAGE Conference and Exhibition 2018: Opportunities Presented by the Energy Transition

Конференция

Конференция80th EAGE Conference and Exhibition 2018: Opportunities Presented by the Energy Transition
Страна/TерриторияДания
ГородCopenhagen
Период11/06/1814/06/18

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