... networks for various loading conditions. We propose a method enabling the calculation of hydraulic fracturing fluid injection pressure from the obtained numerical conditions of loading and regional stress in the target reservoir rock. Results of numerical simulation and recalculation of the obtained...

... of flow rate/permeability have been achieved on both samples through fracture shear slip induced by elevating injection pressure. It is shown that ∼100 times increase in flow rate was induced by a ∼0.1 mm scale of shear slip on the two cylindrical shale samples (with ∼38 mm diameter). The permeability...

... design, such as the injection pressure, the start time and the length of the soaking periods. From the results, we can conclude that CO 2 injection into the Longmaxi shale appears to be a technically feasible way of storing CO 2 and a limited increase (<1%) in gas recovery. shale gas...

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... designed filtration vessel in all experiments. Crude oil with viscosity of 19 cp was used to investigate the impact of oil viscosity. The impact of varying filter membrane pores size (450, 100, and 50 nanometers), nitrogen injection pressure (1500, 1250, and 1000 psi), and temperature (70, and 32°C) were...

... pressure, and cyclic injection, where injection pressure is cycled and increased progressively. Three different cyclic injection treatments are carried out: (1) Pre-breakdown cyclic injection fracturing where fluid is injected in cyclic manner till breakdown, (2) Post-breakdown cyclic injection which...

... & Gas pore injection pressure viscosity well logging relaxation region nuclear magnetic resonance matrix surface affinity interpretation log analysis NMR response pressurization fraction gas pressurization experiment depressurization rock matrix URTeC: 113 Effects of Temperature...

..., an injection pressure equal to the initial reservoir pressure is recommended. Using low injection pressure, S hmin is found out to be lowest in fractures, which may make infill well fractures tend to propagate into and hit the parent well fractures. However, if injection pressure is increased to larger than...

... for the other (J-24A) based on production voidage. Injection pressure was controlled below or slightly higher than fracture pressure to prevent fracture extension in the reservoir causing fast breakthroughs. Step rate and pressure falloff tests indicate that short term polymer injectivity is similar to water...

... in shale oil reservoirs. It is observed that as sCO 2 injection pressure increases, the required soaking time for maximum process performance increases. Introduction Trapped within organic shale matrix, there is a large amount of unrecovered oil content that cannot be removed through primary depletion...

... injection test with concurrent acoustic emission (AE) monitoring. In the test, slip was induced on the fracture at near critical stress state by injecting pressurized brine water (7% KCL). Sample deformation (stress, displacement), fluid flow (injection pressure, flow rate) and AE signals (hits, events...

.... This indicates that shear slippage along weak lamination interfaces does not help propagate hydraulic fractures. Instead, it dissipates energy and elevates injection pressure, in some cases well above the overburden. Perforation patterns play important roles in formation breakdown and fracture geometry near...

... hydraulic fracturing oil shale Fluid Dynamics injection pressure lower flaw shear stimulation minimum principal stress flaw stimulation Coalescence shale oil Upstream Oil & Gas flow rate outer tip SEM image Rock mechanics geomechanics Symposium upper flaw permeability injection...

... fracture that activate pre-existing fractures. Various characteristics are discussed of these two extreme conceptual models, particularly differences in injection pressure and microseismic moment release. The model containing the aseismic, tensile fracture represents the lowest energy state and is most...

... directions using an iteration scheme. This model is verified against field data from energized fluid injection operations. The relative average errors on pressure and temperature are less than 5%. The effects of injection pressure, mass flow rate, annulus fluid type, foam quality, and proppant volumetric...

... algorithms to minimize the number of simulation runs and achieve a balance between computation time and the quality of the history-match. Artificial Intelligence shale reservoir Upstream Oil & Gas Simulation enhanced recovery injection pressure machine learning cyclic gas injection...

... is even more difficult to model due to increased complexity of pressure and stress fields in the wellbore vicinity (Feng and Gray, 2018a, 2018b). Reservoir Characterization injection pressure fluid exchange fracture propagation hydraulic fracture Upstream Oil & Gas hydraulic fracturing...

... learning geological modeling Artificial Intelligence data quality GeoModel Earthquake seismicity Reservoir Characterization Upstream Oil & Gas fluid injection database interpretation Seismicity Geomodel information management injection pressure Disposal hornbach injection geologic...

... evolution. In addition, fluid flow through shale fractures under different values of confining stress and injection pressure were examined to investigate the stress-dependent permeability of shale fractures. The hydrostatic flow tests show that flow rate linearly rises with the increase of injection, while...

... developing fresh fractures from new perforations. Estimation of pressure losses along the well for the common casing diameters and fracturing fluids indicates that a high pressure gradient develops along the well during refracturing. It results in significantly higher injection pressures at the heel than...