... petronas block 4 validation geomechanical condition geomechanics symposium upstream oil & gas injection pressure unconventional asset operation multistage hydraulic fracture design ARMA 21 1635 Advanced eXtended Finite Element Method Hydraulic Fracturing Model for Optimizing Hydraulic...

... an increase in fluid volume that can be injected per time at a given injection pressure. Our results suggest that the injectivity of hydraulically fractured, initially intact intervals may become comparable to that of stimulated pre-existing fractures but at different pressure levels, that depend on fracture...

...% compared to the monotonic injection pressure and enhances the fracture permeability by a factor of 2-to-6 even at 5000 psi confining pressure. SEM statistical analysis of the fracture network shows that the width of fracture process zone around the primary fracture is enhanced by a factor of 2.5 in pre...

... is a really existing phenomenon, and it surely causes the rapid rise in injection pressure. fracturing fluid injection pressure bentonite slurry CT scanner hydraulic fracturing CT image viscosity specimen fracturing materials Upstream Oil & Gas proppant rapid rise fracture tip fracture...

... productivity. With the increase of the injection pressure, both the cumulative shale gas reservoir production and the carbon dioxide sequestration volume increased. Under the same conditions, the adsorption capacity of carbon dioxide on the rock surface is about 4 times that of methane. Finally, the theory...

... interaction with emphasis on slippage of a discontinuity surface. Injection pressure, stress applied, and the sample deformation are monitored during the test. Acoustic Emission (AE) technology is employed to record the AE signals generated during fracture initiation, propagation and during the sliding...

... Characterization Upstream Oil & Gas slickwater reservoir geomechanics injection pressure co 2 structural geology reaction time experiment supercritical co 2 tensile strength porosity co 2-brine-rock interaction propagation breakdown pressure MPa interaction fracture permeability 1...

... process of hydraulic fracturing using acoustic emission (AE). Experimental results show that the location of small few AE events along BP near the wellbore and stable injection pressure indicated the fracturing fluid leaking into the dilated BP under low injection rate (= 10 mL/min). In this case the SRV...

... interface element equation fracture hydraulic fracturing aperture injection pressure har element fragmentation technique propagation numerical modeling permeability finite element 1. INTRODUCTION The formation and propagation of discontinuities in porous media has been a subject of interest...

... in the reservoirs. To improve the geomechanical models, a series of field tests were carried out to estimate minimum u stress and fracture propagation pressure in both reservoir and cap rock. The tests results allowed a change in the criterion for definition of the maximum injection pressure in injector wells...

...; the mitigation of the sanding onset from the improvements of the compressive strength of the rock is possible. The conditions to take a minimum preparation time at well site were evaluated; low injection pressure, short cure time before restoring well for production, high compressive stress of rock matrix, good...

.... Upstream Oil & Gas Sandstone Reservoir waterflooding core-flooding experiment enhanced recovery Brine experiment salinity contact angle injection pressure OOIP permeability measurement Oil Recovery reservoir ls water permeability reactive transport modeling 1. INTRODUCTION...

... injection pressure or rendering the injectivity enhancement short-lived. In this work, we develop a fully coupled thermo-hydro-mechanical (THM) model that couples multiphase flow of supercritical CO 2 and reservoir brine, rock and fracture deformation, and thermal contraction. We use this model to study...

... to the cost saving and efficiency increase of hydraulic fracturing. 1. INTRODUCTION Wellbore Design net pressure experimental study wellbore integrity injection pressure MPa Upstream Oil & Gas sandstone hydraulic fracturing experiment fracture morphology pressure curve stress...

... for understanding the HFs propagation problem in the field scale. hydraulic fracturing propagation behavior reservoir geomechanics fractured injection well initiation Reservoir Characterization Upstream Oil & Gas injection pressure hf propagation behavior geometry Denote pore pressure minimum...

... emission response characteristic coal seam gas fracture mechanics injection pressure hydraulic crack experimental study interface 1. INTRODUCTION Coalbed methane is an unconventional natural gas formed and stored in coal seams, and it has attracted much attention because of its huge potential...

...1. INTRODUCTION Water injection is arguably the most often used improved oil recovery technique. Field practices show that injectivity of a water injection well usually declines with injection time. To maintain needed injection rated, it often requires increasing injection pressure, which potential...

...) increases during the process of filling the reservoir with CO 2 was performed to estimate actual fracture pressure during the reservoir filling process. We refer to this as “dynamic” fracture pressure. reservoir geomechanics Upstream Oil & Gas wellbore integrity injection pressure Shmin co...

... for the creation of hydraulic fractures for granitic rocks. Fig. 2. Experimental apparatus for the hydraulic fracturing test. The AE sensors were indicated as the orange dots. 3. RESULTS 3.1. Mechanical Responses The pumping and mechanical data are presented in Fig. 3. The injection pressure started to increase...

.... However, cement squeeze in certain situations cannot be used effectively to mitigate and prevent the leakage because of low cement injectivity, pressure restriction, pin-hole leakage, micro- channels and fractures inside leaked formation, and micro-cracks within primary cement (Jones et al. 2014...