Fluid injection-induced fault slip during unconventional energy development: A review

Wu, Weili; Lu, Dazhao; Elsworth, Derek

doi:10.1016/j.enrev.2022.100007

Cited by 15 publications

(4 citation statements)

References 97 publications

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“…The moment magnitude can be calculated with [44] M w = 2 3 log 10 M 0 − 9.1 (17) Injection-induced fault activity can be classified into three categories on the basis of slip velocity: creep and slow slip, aseismic slip, and seismic slip [3]. In this study, slip nodes are considered to be seismic slip only if they satisfy two conditions: (1) the Coulomb failure stress is greater than 0.2 MP, and (2) the slip velocity is greater than 0.2 mm/s.…”

Section: Distribution Of Seismic Slip Eventsmentioning

confidence: 99%

“…Shale gas, as an unconventional energy source, has gained significant attention. Recently, the occurrence of fault reactivation induced by fluid injection during the stimulation process has been widely concerning for researchers [1][2][3]. Previous studies highlighted the influence of both geologic and engineering factors, such as pre-existing fractures and hydraulic fracturing schemes, on fault slip and earthquakes [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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FEM Simulation of Fault Reactivation Induced with Hydraulic Fracturing in the Shangluo Region of Sichuan Province

He,

2024

Energies

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Hydraulic fracturing operations possess the capacity to induce the reactivation of faults, increasing the risk of fault slip and seismic activity. In this study, a coupled poroelastic model is established to characterize the distribution and movement of fluids within rock formations in the Shangluo region of Sichuan province, China. The effect of hydraulic fracturing projects on the variations of pore pressure and Coulomb effective stress within a high-permeability fault is analyzed. The potential fault-slip mechanism is investigated. The results show that the fault plays different roles for fluid movement, including the barrier, fluid transport channel, and diversion channel, which is related to injection–production schemes. In addition, fluid injection leads to a high probability of fault reactivation. We find that increasing the injection time and fluid injection rate can result in larger slip distances. The injection production scenarios influence the fault-slip mechanism, resulting in a normal fault or reverse fault. However, the arrangement of production wells around the injection can effectively reduce the risk of fault reactivation.

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Section: Distribution Of Seismic Slip Eventsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

FEM Simulation of Fault Reactivation Induced with Hydraulic Fracturing in the Shangluo Region of Sichuan Province

He,

2024

Energies

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“…Researchers have partially solved the first two problems based on some developed models (Dinske et al, 2008; Shapiro et al, 2005, 2006; Talwani & Acree, 1985). However, the third problem has not been well solved (Kohl & Megel, 2007; Rahman et al, 2002; Willis‐Richards et al, 1996; Wu et al, 2022; Zang et al, 2014). In fact, the third problem, the establishment of a model for predicting the amplitude of earthquake events, is related to the fundamental problem of earthquake prediction.…”

Section: Dynamic Models For Earthquake Triggermentioning

confidence: 99%

Dynamically triggered seismicity on a tectonic scale: A review

Qi,

Wang,

Kocharyan

et al. 2023

Deep Underground Science and Engineering

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Earthquakes triggered by dynamic disturbances have been confirmed by numerous observations and experiments. In the past several decades, earthquake triggering has attracted increasing attention of scholars in relation to exploring the mechanism of earthquake triggering, earthquake prediction, and the desire to use the mechanism of earthquake triggering to reduce, prevent, or trigger earthquakes. Natural earthquakes and large‐scale explosions are the most common sources of dynamic disturbances that trigger earthquakes. In the past several decades, some models have been developed, including static, dynamic, quasi‐static, and other models. Some reviews have been published, but explosion‐triggered seismicity was not included. In recent years, some new results on earthquake triggering have emerged. Therefore, this paper presents a new review to reflect the new results and include the content of explosion‐triggered earthquakes for the reference of scholars in this area. Instead of a complete review of the relevant literature, this paper primarily focuses on the main aspects of dynamic earthquake triggering on a tectonic scale and makes some suggestions on issues that need to be resolved in this area in the future.

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“…Injection of fluids at very high pressure leads to loss of frictional strength along the fault plane and a decrease in effective overburden stress conditions in the fluid-pressurized zone. This leads to an increase in driving shear stress and loss of frictional coefficient due to lubrication in sandstones [97,106,107]. The induced stress change can also contribute to activating remote faults depending on the difference between the injection rate and diffusion rate of the fluid injected in the reservoir.…”

Section: Laboratory Studies Of Injection-induced Fault Reactivationmentioning

confidence: 99%

Comprehensive review of geomechanics of underground hydrogen storage in depleted reservoirs and salt caverns

Ramesh Kumar,

Honorio,

Chandra

et al. 2023

Preprint

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Hydrogen is a promising energy carrier for a low-carbon future energy system, as it can be stored on a megaton scale (equivalent to TWh of energy) in subsurface reservoirs. However, safe and eﬀicient underground hydrogen storage requires a thorough understanding of the geomechanics of the host rock under fluid pressure fluctuations. In this context, we summarize the current state of knowledge regarding geomechanics relevant to carbon dioxide and natural gas storage in salt caverns and depleted reservoirs. We further elaborate on how this knowledge can be applied to underground hydrogen storage. The primary focus lies on the mechanical response of rocks under cyclic hydrogen injection and production, fault reactivation, the impact of hydrogen on rock properties, and other associated risks and challenges. In addition, we discuss wellbore integrity from the perspective of underground hydrogen storage. The paper provides insights into the history of energy storage, laboratory scale experiments, and analytical and simulation studies at the field scale. We also emphasize the current knowledge gaps and the necessity to enhance our understanding of the geomechanical aspects of hydrogen storage. This involves developing predictive models coupled with laboratory scale and field-scale testing, along with benchmarking methodologies.

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Fluid injection-induced fault slip during unconventional energy development: A review

Cited by 15 publications

References 97 publications

FEM Simulation of Fault Reactivation Induced with Hydraulic Fracturing in the Shangluo Region of Sichuan Province

FEM Simulation of Fault Reactivation Induced with Hydraulic Fracturing in the Shangluo Region of Sichuan Province

Dynamically triggered seismicity on a tectonic scale: A review

Comprehensive review of geomechanics of underground hydrogen storage in depleted reservoirs and salt caverns

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