... dependence of fault slip: for the same amount of injected volume, lower injection rate builds up lower pore pressure, and triggers less slip and less seismic events. 1. Introduction Fault gouge is crushed and ground-up rock produced by friction between the two sides when a fault moves (Scholz, 2019...

... calibrated by history matching well responses. The calibrated pressure distributions were updated into the geomechanical simulation model to assess fault slips and resulting fault frictional energy. We utilized the alternating conditional expectation (ACE) algorithm to build a correlation between...

... that natural faults are composed of several interconnected segments and fractures in the damage zone. This simplified model geometry is useful to explore important features of the fault slip modes, seismic and aseismic, but this geometry is too simple to reproduce the seismicity patterns observed during...

... 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...

... and fault slip induced seismogenesis. The generated rupture size and tremor magnitude may be useful in understanding the nature of induced seismicity in an onshore gas field in Northern Europe. characteristics of depletion induced dynamic fault rupture. Fig. 1. Natural fault surfaces at outcrops...

..., but leads to a larger magnitude. Reservoir Characterization fault slip normal stress rupture Upstream Oil & Gas scenario 2 reactivation produced water discharge scenario 1 effective normal stress scenario 3 shear stress Injection Rate reservoir geomechanics pressure condition...

.... This helps to explain observations of induced seismicity below the formation targeted by hydraulic fracturing. Reservoir Characterization fault slip displacement British Columbia different stiffness shear displacement numerical investigation stress drop injection Upstream Oil & Gas...

... displacements, stress drops and rupture lengths. The presence of a viscoelastic caprock even further promotes fault slip and nucleation of a seismic events at an early stage of depletion. Faults without offset are reactivated during later stages of depletion and involve larger slip displacements, stress drops...

... favorability geology permeability potential Washington geometry Geothermal Resource strain rate Fluid Dynamics volcano Earthquake mshsz gradient Reservoir Characterization Upstream Oil & Gas fault slip volcanic vent deformation Mount St traction washington division permeability 1...

..., and a fault frictional behavior based on a slip-weakening law. The simplified reservoir and fault geometry of the model are representative for the Dutch gas fields. Simulated fault slip displacements and fault slip lengths were used to calculate moment magnitudes of induced seismic events. In addition...

.... The model included a limited-dimension pre-existing fault which cannot be easily detected by geophysical surveys. The numerical modeling was used to simulate changes in the stress distribution in the reservoir, fault and surrounding rock due to Co 2 injection. The fault slip obtained from the model...

... pressurization of a normal fault while continuously monitoring strain, seismicity and pore pressures. The episodicity of fault slip is related to dilatancy-strengthening revealed by transient pore-pressure drops that correspond to both permeability and porosity increase of the fault zone. We calculate...

... reservoir geomechanics Reservoir Characterization gas production geomechanical model fault slip reservoir depletion caprock slip tendency Coulomb stress change gas field injection Upstream Oil & Gas depletion central fault gas injection cushion gas injection stability stress...

... reservoir fault slip compaction effective stress principal stress october 2000 Model Result deformation 1. INTRODUCTION Production-induced depletion of high-pressure, high- temperature (HPHT) fields can lead to significant deformation and stress changes both inside and outside the reservoir [1-6...

... in the fault zone have been estimated by modeling the slipped portion of the fault as a shear (mode II) fracture. Based on the fault slip magnitude, the seismic moment and the magnitude of the generated earthquake have been computed. The results show that even if the magnitude of induced earthquake...

... as a shear (mode II) fracture. Displacement discontinuity between the sides of this fracture gives an estimate of the fault slip magnitude. INTRODUCTION Geological discontinuities such as faults are inherent in most petroleum formations. It is well known that changing fluid state in a hydrocarbon...

... function, structure function (dynamic Green's function), and recording system function. Upstream Oil & Gas fault slip slip displacement specimen shear band energy release rate tensor global measurement analytic solution Reservoir Characterization release rate acoustic emission...

... the elastodynamic behaviour of the rock mass (Sicbrits et al 1994). Areas under investigation include: representation of dynamic fault slip and rockburst mechanisms; interaction of seismic waves with tabular stopes and geological structures such as dykes, and determining geometric factors which influence...

... of intraplate earthquakes are coincident with the active fracture belts as well. However, the reactivation of a fault is usually showed as the dislocation of two sides of the fault, that is fault slip. It is a fact that the occurrence of an earthquake is a releasing process of the elastic strain energy...