Multiwell Fiber Optic Sensing Reveals Effects of CO2 Flow on Triggered Seismicity

Glubokovskikh, Stanislav; Shashkin, Pavel; Shapiro, Serge A.; Gurevich, Boris; Pevzner, Roman

doi:10.1785/0220230025

Cited by 6 publications

(1 citation statement)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We find that, for a given nucleation time, magnitudes can vary by ±1.5 based on the analysed data (see figure 2). Also, note that our model does not include induced seismicity caused by hydrocarbon extraction [45] and CO 2 storage [46], because the physical processes triggering seismicity are different in these cases and potentially require process-specific nucleation constants.…”

Section: Forecasting Maximum Induced Earthquake Magnitudes Prior To O...mentioning

confidence: 99%

Are maximum magnitudes of induced earthquakes controlled by pressure diffusion?

Langenbruch,

Moein,

Shapiro

2024

Phil. Trans. R. Soc. A.

Self Cite

View full text Add to dashboard Cite

There is an ongoing discussion about how to forecast the maximum magnitudes of induced earthquakes based on operational parameters, subsurface conditions and physical process understanding. Although the occurrence of damage caused by induced earthquakes is rare, some cases have caused significant economic loss, injuries and even loss of life. We analysed a global compilation of earthquakes induced by hydraulic fracturing, geothermal reservoir stimulation, water disposal, gas storage and reservoir impoundment. Our analysis showed that maximum magnitudes scale with the characteristic length of pressure diffusion in the brittle Earth’s crust. We observed an increase in the nucleation potential of larger-magnitude earthquakes with time and explained it by diffusion-controlled growth of the pressure-perturbed part of faults. Numerical and analytical fault size modelling supported our findings. Finally, we derived magnitude scaling laws to manage induced seismic hazard of upcoming energy projects prior to operation. This article is part of the theme issue ‘Induced seismicity in coupled subsurface systems’.

show abstract

Section: Forecasting Maximum Induced Earthquake Magnitudes Prior To O...mentioning

confidence: 99%

Are maximum magnitudes of induced earthquakes controlled by pressure diffusion?

Langenbruch,

Moein,

Shapiro

2024

Phil. Trans. R. Soc. A.

Self Cite

View full text Add to dashboard Cite

show abstract

Opening versus shearing of a fluid-driven fault reactivation

Xiao,

Salimzadeh,

Zhang

2024

Aust. Energ. Prod. J.

View full text Add to dashboard Cite

Geological injection of fluids plays a key role in addressing societal challenges such as renewable energy transition and climate crisis mitigation. However, frequent injection activities would disturb the stability of surrounding fault zones and furtherly induce seismicity. When fluid enters a fault, the competition among pressure front and slip front can play a role on the fault’s seismic behaviour. Fault’s stiffness as well as the rock’s Poisson’s ratio affects the shape of the slip and pressure front. In this study, the fault’s seismic behaviour has been extensively study through numerical modelling. The aim is to investigate the impact of deformable aperture and rock matrix’s Poisson’s ratio on the opening rupture and shear rupture of a pre-existing critically stressed fault. The parametric study shows that, with this initial stress state, the opening rupture grows slower than the shearing rupture, and the ratio between the front length is approximately 70%. A slip-weakening feature could boost this difference. Moreover, the variation between the front length along the y-direction and dip-direction of the fault increases with the increase of rock matrix’s Poisson’s ratio.

show abstract

Whale detection and microseismic monitoring via DAS using submarine telecommunications cables – a case study from the NWS, Western Australia

Debens,

McCorry,

Sidenko

et al. 2024

Aust. Energ. Prod. J.

View full text Add to dashboard Cite

A monitoring trial of subsea distributed acoustic sensing (DAS) conducted in the marine waters of Australia is presented. This trial explores the concept of repurposing existing submarine telecommunications cables for remote monitoring of the environment and geophysical phenomena. The data were collected from a pre-existing fibre-optic cable, 50 km in length, that links two offshore hydrocarbon production platforms off the northwest coast of Australia. Initial data analyses confirmed the ability to detect underwater sounds from various sources, including marine animals (such as baleen whales), anthropogenic activities (such as vessels), and natural geophysical phenomena (such as earthquakes). The study underscores the efficacy of DAS for capturing and locating marine mammal vocalisations, specifically highlighting signals from pygmy blue whales – a species granted the highest protection status in Australia – and Omura’s whales, both of which migrate biannually through the offshore waters of Western Australia. These findings indicate the potential of subsea DAS for detecting and tracking marine fauna regionally. Moreover, they suggest its applicability for future monitoring in support of environmental impact assessments and the development of adaptive management strategies to prevent or minimise impacts on migratory whale species from offshore industries.

show abstract

Multiwell Fiber Optic Sensing Reveals Effects of CO2 Flow on Triggered Seismicity

Cited by 6 publications

References 39 publications

Are maximum magnitudes of induced earthquakes controlled by pressure diffusion?

Are maximum magnitudes of induced earthquakes controlled by pressure diffusion?

Opening versus shearing of a fluid-driven fault reactivation

Whale detection and microseismic monitoring via DAS using submarine telecommunications cables – a case study from the NWS, Western Australia

Contact Info

Product

Resources

About