... and fluid pressure characteristics. The numerical models use a distinct element method (DEM) approach that explicitly represents the well casing, cement sheath, and perforation tunnels, with natural fractures represented by Smooth Joint Model. The results show that natural fractures intersecting...

... of induced HFs is evaluated by utilizing digital image correlation (DIC). Specifically, we investigate the interactions between a hydraulic fracture (HF) and a pre-existing natural fracture (NF). Using DIC, we examine the evolution in the local strain field in an intact and a pre-cut PMMA specimens as water...

... are cataloged as Sedimentary Enhanced Geothermal systems. Heterogeneity is an inherent component of these rocks and may be present in different forms, including mineral heterogeneity, geometrical heterogeneity, and micro-defects. This study develops a 3D numerical model of natural fracture reservoir with dual...

... fracture propagation operation viscosity hydraulic fracturing geological subdiscipline sensitivity study result advanced fracturing modeling combining fracture model reservoir characterization natural fracture hydraulic fracture displacement discontinuity ARMA 23 0084 Advanced Fracturing...

... heterogeneous inclusions to simulate clusters of mineral-filled natural fractures, which have different mechanical properties compared to the host rock. The stiffness, strength, and thickness of the inclusions were varied by adjusting the mixing ratio of gypsum powder and water. The results indicated a similar...

... ABSTRACT Three single-cluster hydraulic fracture stages were pumped at the Frontier Observatory for Research in Geothermal Energy (FORGE) site in Milford, Utah. Our goal was to develop a robust model to accurately represent the formation of fracture networks in this naturally fractured...

... ABSTRACT Borehole instability in naturally fractured rocks poses significant challenges to drilling. However, the weakening of fracture strength due to mud intrusion was not considered in most existing borehole stability analyses, which may yield significant errors and misleading predictions...

... government upstream oil & gas asia government hydraulic fracturing rock type simulation stress difference natural fracture field-scale fracture propagation unconventional fracture model interaction reservoir geomechanics injection rate expansion viscosity fracture propagation morphology...

... geomechanical, geological and geophysical characterization data. This model was then implemented using a discrete fracture network (DFN) approach, to facilitate simulation of induced (tensile) hydraulic fractures, and reactivation of pre-existing natural fractures. INTRODUCTION The geometry of natural...

... ABSTRACT Natural fractures play a significant role in oil and gas production by serving as the primary fluid pathways in reservoirs with low matrix permeability. However, their behavior is sensitive to stress change. The depletion of reservoir pressure will increase the effective stress...

.... The findings of this study could help identify fracture orientation near the wellbore and contribute to minimizing various drilling and completion issues. INTRODUCTION Natural fractures are abundant mechanical structures that exist in most rock types, especially in carbonates and shale (Moore and Wade...

... mudstone sichuan basin main fracture shale ga resource mudrock shale gas geological subdiscipline viscosity dynamic geo-engineering fracturing technology natural fracture asia government hydraulic fracturing reservoir geomechanics proppant horizontal well fracability index petroleum...

... electrofacies mean hydraulic aperture cluster analysis africa government rock type sandstone reservoir geomechanics open fracture hydraulic aperture well-1 fracture aperture natural open fracture tight gas reservoir stereonet natural fracture ARMA 23 0901 Characterization of a Tight Gas...

... ABSTRACT In general, natural fractures are favorable for hydrocarbon-producing enterprises in low-permeability unconventional reservoirs. In conventional reservoirs with higher permeabilities on the other hand, such natural fractures could be counterproductive since it can be used by water...

... step? In this study, a series of numerical reservoir models with different hydraulic fractures geometry are created based on a gas-producing well in an unconventional reservoir. Embedded discrete fracture model (EDFM) is used to embed hydraulic and natural fractures into the structured grid. Results...

... ABSTRACT The permeability evolution of natural fractures during shearing is one of the critical issues in enhanced geothermal system (EGS). In this study, a series of numerical simulations of shear-flow tests under different normal stresses were carried out to investigate the permeability...

... ABSTRACT The interaction between hydraulic fractures and natural fractures will directly affect the complexity of fractures, which is an important content that needs to be paid attention to in the fracturing process. To study the interaction between hydraulic fractures and natural fractures...

... design and optimization methodology and procedures to solve this problem. The geological and geo-mechanical models were built based on the characteristics of the gas layer, natural fracture, and basal water layer analysis. Hydraulic fracture propagation simulation conducted pump rate, Hydraulic fracture...

... drainage area is constrained by the geometry of the fracture network. The impact of pre-existing natural fractures is investigated by propagating a hydraulic fracture with and without natural fractures and conducting production from the propagated fracture networks using the compositional simulator...

... hydraulic fracturing natural fracture us government injection point renewable energy dfn simulation result dilation injection stronger dfn formation response fracture fluid pressure fluid viscosity upstream oil & gas viscosity dfn dilatancy bpm history matching dilatancy...