Assessing the potential for reservoir induced seismicity from the Bisri dam project in Lebanon

Basbous, Jihane; Nemer, Tony; Yehya, Alissar; Maalouf, Elsa

doi:10.1016/j.enggeo.2022.106679

Cited by 5 publications

(2 citation statements)

References 40 publications

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“…Reservoir-induced seismicity (RIS) is a distinctive form of seismic activity that occurs within a defined timeframe in or around reservoir areas, primarily triggered by the processes of reservoir impoundment and drainage (Li et al, 2004;Rinaldi et al, 2020). To date, approximately 130 confirmed cases of RIS have been reported worldwide (Van Eijs et al, 2006;Basbous et al, 2022;Zheng et al, 2022). Despite most RIS events having low magnitudes, they can be highly destructive, causing damage to nearby dams and structures and even giving rise to secondary disasters like landslides and collapses, posing a threat to downstream safety (Che et al, 2009;Zhang et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Study of 3-D velocity structure characteristics in Dadu river Houziyan reservoir area at different impoundment stages

Yang,

Cao,

et al. 2024

Front. Earth Sci.

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High-resolution three-dimensional VP, VS and VP/VS images in the Houziyan Reservoir Area were obtained by using Fast Marching Tomography Package (FMTOMO) with the travel time data from 6330 seismic events monitored by the Houziyan Reservoir Seismic Network. This analysis yielded the 3-D velocity structure, including longitudinal wave velocity (VP), shear wave velocity (VS), and the ratio of longitudinal and shear wave velocity (VP/VS) at different impoundment stages. The data changes at various impoundment times, depths of sections, and directions of profiles were analyzed to obtain these results. The final findings demonstrate the following results: 1) Through tomographic analysis, it was determined that the underground velocity structure in the Houziyan reservoir area was anisotropic before impoundment. 2) The area of high wave velocity increases in stage 1, stage 3, and stage 4. The area of low wave velocity increases in stage 2, especially in depth, indicating significant changes in the underground velocity structure at different impoundment stages. 3) Compared to the changes in underground velocity structures in other reservoirs after impoundment, the Houziyan reservoir exhibited a unique pattern. 4) In general, the underground velocity structure displayed an overall increasing trend after impoundment. However, it also exhibited instances of decreasing velocity, reflecting continuous dynamic adjustments to the underground velocity structure after impoundment. These conclusions highlight the impact of impoundment in the reservoir area on the underground velocity structure and provide scientific theoretical support for seismic risk assessment following impoundment in the reservoir area.

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Section: Introductionmentioning

confidence: 99%

Study of 3-D velocity structure characteristics in Dadu river Houziyan reservoir area at different impoundment stages

Yang,

Cao,

et al. 2024

Front. Earth Sci.

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“…To assess the fault response, we estimate the change in the Coulomb Failure Stress (CFS) along a critically stressed fault that is located near the HF operations using a two-dimensional finite element poroelastic model on COMSOL Multiphysics. This approach has been implemented previously to study the stability of the faults associated with CO 2 injection (Rutqvist et al, 2007;Vilarrasa et al, 2016), water-injection (Rutqvist, 2011;Yehya et al, 2018), reservoir impoundment (Basbous et al, 2022) and HF (Rutqvist et al, 2013(Rutqvist et al, , 2015. In the second part of the study, we consider the case study of the Duvernay formation in Alberta, Western Canada where seismic events were reported during and after operations, to relate the fault response to real seismic data.…”

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confidence: 99%

Analysis of the Hydrogeological Conditions Affecting Fault Response to Nearby Hydraulic Fracturing

2022

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The response of critically stressed dormant faults to fluid perturbation, by oil and gas production, has been a major public concern because of its link to induced seismicity. In this paper, we study the hydrogeological factors that affect a nearby fault response, during and after hydraulic fracturing (HF) operations, evaluated by the change in Coulomb Failure Stress (CFS) and the rate of seismicity (R) through coupling solid deformation and fluid flow. Our results show that the pore pressure increases rapidly in a fault that is close (hydraulically connected) to HF operations, which might lead to its activation when the injection rate is high. When the fault is adjacent to HF but distant from it, its shallow region is subjected to a stabilizing deformation‐induced normal compressive stress and its deeper region is destabilized under extension. In this case, the fault orientation and damage zone size have a significant effect on the fault's stability and response. On the other hand, decreasing the rate of injection can either increase or decrease the CFS values depending on the fault location and the dominant stresses. Therefore, serious attention should be given to the fault position, its architecture, and the injection rate to help reduce the potential for induced seismicity from HF. Our findings are verified and confirmed using the case of the Duvernay formation in Alberta, Canada, where the reported seismic data correlate with high CFS and R values.

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Traffic light system regulation of induced seismicity under multi-well fluid injection

He,

Li,

et al. 2024

Energy Geoscience

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Assessing the potential for reservoir induced seismicity from the Bisri dam project in Lebanon

Cited by 5 publications

References 40 publications

Study of 3-D velocity structure characteristics in Dadu river Houziyan reservoir area at different impoundment stages

Study of 3-D velocity structure characteristics in Dadu river Houziyan reservoir area at different impoundment stages

Analysis of the Hydrogeological Conditions Affecting Fault Response to Nearby Hydraulic Fracturing

Traffic light system regulation of induced seismicity under multi-well fluid injection

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