... 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 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

...ARMA 21 1221 Acidizing Model to Couple the Closure Stress and Acid-rock Reactive Transport in Naturally Fractured Carbonate Reservoir Bo Gou, Nan Qin, Chuan Wang, Jichuan Ren, Jianchun Guo Southwest Petroleum University, Chengdu, Sichuan, China Mingyong Zeng Sinopec Southwest Oil & Gas Company...

...ARMA 21 1303 Experimental Investigation on Stress Sensitivity Behavior for Tight Naturally Fractured Sandstone Reservoirs Wang, Y.C. The Unconventional Natural Gas Institute, China University of Petroleum at Beijing, Beijing, China State Key Laboratory of Petroleum Resource and Prospecting, China...

... are calculated for rock masses surrounding inclined wells with varied trajectories. Taking the relative amount of fractures becoming hydraulically conductive due to stress concentration as a qualitative measure of the efficiency of drilling naturally fractured rocks, the best well trajectory is estimated...

... fracture fluid dynamics stress reversal stress field location 2 infill natural fracture uniform uniform stress change hmin ARMA 21 1340 Impact of Stochastic Hydraulic Fracture Properties on Stress Reorientation in Shale Gas Reservoirs Jia He, Yanli Pei, Kamy Sepehrnoori Hildebrand Department...