...ARMA 21-1339 Seismic Response to Fluid Injection in Faulted Geothermal Reservoirs: A Case Example from Iceland Cai, W., Durucan, S., Cao, W., Shi, J.Q., Korre, A. Department of Earth Science and Engineering, Royal School of Mines, Imperial College London, London SW7 2AZ, United Kingdom...

... reservoir geomechanics fault reactivation normal stress basement reservoir characterization pore pressure deeper depth poroelastic stress coefficient upstream oil & gas fluid injection fault plane enhanced recovery cfs earthquake injection oklahoma case 1 ghassemi damage...

... ABSTRACT: Understanding the physical mechanisms controlling fluid-injection-induced seismicity in a gouge-filled fault is crucial in the assessment and mitigation of induced seismicity, especially in the context of subsurface technologies like wastewater disposal, hydraulic fracturing, oil...

... displacement and fractures, but flow is closely linked to the volumetric subsequent fluid injection through Opalinus behavior of the rock when exposed to fluids and its claystone using X-ray computed tomography (XCT) ability to self-seal when fractures are present (e.g., to spatially map the temporal evolution...

... Abstract We address the coupled hydro-mechanical problem of fluid injection in a fractured rock mass in the limit of negligible matrix hydraulic diffusivity. The fact that fuid-induced aseismic slip may outpace pore-fluid diffusion along a planar fault is also valid in the case of fluid...

..., is applied to a physically similar case of fault gouge instability caused by fluid injection. 1. Introduction Landslides and faults instabilities pose a significant environmental hazard. Most landslides and tectonic faults shear within a shear zone or gouge, which consists of clay and granular material...

... ABSTRACT: Shear slip of fractures/faults induced by pressurized fluid injection has been recognized as an important mechanism in reservoir stimulation and induced earthquake. A lab-scale physical simulation of fluid injection-induced shearing is still lacking to understand the slip evolution...

... deformation as well as the evolution of effectives stress at the fault plane. Reservoir Characterization Upstream Oil & Gas fluid injection simulator Modeling & Simulation Fault Activation mfm method reservoir geomechanics drillstem/well testing pressure change assumption...

... can help to predict the shape of poroelastic deformation and whether or not solid grains would rearrange effectively in a given time. Fluid Dynamics flow rate Closing Time flow in porous media fluid injection capillary force Upstream Oil & Gas injection port test condition enhanced...

... 1 1. INTRODUCTION The injection of fluids into the sub-surface can cause earthquakes, sometimes more than 10 km away from the injection point (e.g., Ellsworth, 2013; Goebel et al., 2018). However, fluid injection does not systematically trigger earthquakes. For example, importantly, fluid...

... reservoir geomechanics fault slip fluid pressure plot Upstream Oil & Gas shear stress Reservoir Characterization constant injection fluid injection joint-enriched finite element modeling enhanced recovery criterion MPa Simulation damage criterion reservoir layer injection...

... ABSTRACT: Near-realtime seismic monitoring of fluid injection allowed control of induced earthquakes during the stimulation of a geothermal well near Helsinki, Finland. The injection well was drilled down to 6.1 km-depth into Precambrian crystalline rocks. The well was deviated 45° from...

... of HFs is critically important for the design of hydraulic fracturing treatment. Normally, HFs tend to take a straight path in a symmetrical stress field. However, as a result of fluid injection or production through pre-existing wells, non-uniform stress field can be encountered during the fracturing...

... stress law as shown in Eq. (1) (Stein and Wysession, 2003) where refers to the normal stress on the fault and refers to the pore pressure on the fault. = (1) Following the effective stress law, the high fluid injection pressure reduces the effective normal stress. Typically faults slip when shear...

...1. INTRODUCTION Fluid injection into geological formations is common practice in different engineering applications. These applications include, for example, hydraulic fracturing of shale gas, tight oil and coalbed methane, wastewater injection, re-injection of produced fluids from geothermal...

... seismic cycle aseismic response Geophy stress drop injection unperturbed case lapusta aseismic slip seismic event perturbation vw patch US government fluid injection interseismic period seismicity perturbation occur stress perturbation Magnitude 1. INTRODUCTION: THE CHALLENGE...

... ABSTRACT: In this paper we present a discrete element modelling based fluid injection simulation in a blocky structured rock mass. The hydro-mechanical couple model is developed on the basis of a commercial software, Particle Flow Code 2D. The fluid fl ow algorithm is modified to enable...

... the potential to cause leaks to develop and/or induced seismicity to occur. Many common caprock formation types, such as shales and evaporates, are prone to undergo time-dependent deformation such as viscoelastic and/or viscoplastic response. Since the deformations induced by fluid injection are generally...

... contribute to the injection-related fracture initiation. fluid modeling Upstream Oil & Gas mechanism equation of state fluid injection cfd-dem approach fluid flow injection hydraulic fracturing Simulation microcrack pressure drop velocity field particle fracture initiation base case...