... Abstract In past studies, changes in fluid pressure in natural fractures (planes of weakness) have been ignored for the interaction of hydraulic and natural fractures. To overcome these limitations, in this paper we develop a method to simulate the growth of hydraulic fractures...

... for a formation with such low porosity. Limited core data shows that the natural fractures are well-developed and may strongly enhance the permeability of the tight reservoir. The testing results also show that the subsurface reservoir exhibits high pressure and high temperatures (HPHT). Fractures observed...

... that any effects caused by stress-sensitivity of reservoir parameters are largely reversible. Permeability derived from all tests are much larger than those obtained from laboratory data, leading to the interpretation that natural fractures are elevating system permeability. Fracture half-lengths are also...

... increases from nanodarcy to micro darcy scale, leak-off and invasion of hydraulic water increase substantially. The application of geomechanics in opening and closing natural fractures with pressure has a significant effect on water distribution inside reservoirs and the production of fluids. The natural...

... advice for production calibration (history matching), well spacing optimizations and completion design optimizations. machine learning artificial intelligence flow in porous media hydraulic fracturing upstream oil & gas drilling operation complex reservoir natural fracture fluid...

... extremely challenging. In this study, the objective is to develop a workflow to calibrate fracture geometries with consideration of sophisticated G&G information, and realistic 3D natural fracture networks. This workflow is ground-breaking, due to its unique capability to incorporate complex problem...

... stages with variable stimulation and completion procedures. Therefore, exhaustive evaluation of fracture networks comprised of both preexisting natural fractures and newly created fractures from hydraulic stimulation has significant implications for both optimizing production and minimizing...

... machine learning reservoir geomechanics hydraulic fracturing artificial intelligence orientation information renewable energy actual fracture length natural fracture upstream oil & gas observation well computed microseismic event far-field displacement reservoir characterization...

... modeling of DSS/DAS that is capable of incorporating the interaction phenomenon existing between hydraulic and natural fractures. The model is used in a sensitivity study varying orientation, distribution, and length of natural fractures, with the objective to assist and optimize field data interpretation...

...URTeC: 5526 Efficient Modeling of Enhanced Geothermal System with 3D Complex Hydraulic and Natural Fractures Hongbing Xie1, He Sun2, Wei Yu*1,2, Joseph Leines-Artieda1, Kamy Sepehrnoori2, 1. Sim Tech LLC, 2. The University of Texas at Austin Copyright 2021, Unconventional Resources Technology...

... Abstract In unconventional reservoirs, the existence of natural fractures is evident from the analysis of data gathered with techniques like well logs, core studies, and micro-seismic interpretation. In hydraulic stimulation of these reservoirs, propagating hydraulic fracture (HF) generally...

... and hydraulic fractures that have been analyzed. Previous works have detailed the nature of the fractures recovered in the core, identifying 375 hydraulic fractures, 309 calcite-sealed natural fractures, and 8 faults (Gale et al., 2018). We studied the likelihood for fractures to be initiated or reactivated...

... model natural fracture urtec operator scenario drilling operation wellbore seismic lateral variation marcellus shale fracture structural geology upstream oil & gas heterogeneity fracture plane workflow borehole image URTeC: 5459 Horizontal Well Evaluation to Determine Geological...

... reservoirs, and generating their corresponding production responses, Next, the simulator is updated with natural fractures to represent field data for those wells A neural network model is proposed that will capture the correlation between and the corresponding difference between the production...

... fractures, most having fibrous cement (beef), and some showing top-to-north bed-parallel shear are present. Faults with normal/oblique movement were found in one part of the core. Drilling induced and core-handling breaks were identified in all cores, and were also noted to have reactivated some natural...

... studies have demonstrated the role of mechanical stratigraphy on natural fracture orientation and intensity, hydraulic fracture growth and in-situ stress distribution [1-8]. Mechanical stratigraphy modeling and overall geomechanics characterization require the integration of a broad range of data...

... growth in relation to inherent lithology, geomechanical properties, and interaction with pre-existing natural fractures. This paper presents a characterization workflow incorporating pre- and post-stimulation subsurface data, unique to the HFTS-2 dataset. The study integrated: (1) rock properties from...

... workflow has allowed us to observe the role that geology, natural fractures, rock mechanical properties and stress regimes play in the fracture propagation for the unconventional Diyab play. The model simulations show how the hydraulic fractures propagate and how they interact with pre-existing natural...

... Abstract Individual well performance in the Marcellus Shale of northeastern Pennsylvania varies markedly, even in areas where the lithology, fluid composition, and completion design are consistent. A primary reason for this is the natural fracture system, which influences hydraulic fracture...

... Abstract Numerical simulation results of multi-stage hydraulic fracturing in a naturally fractured reservoir with explicit representation of a realistic number and geometry of discrete natural fractures is presented. The parametric study considers different strengths and hydrological...