... of the damage evolution. Macroscopic damage and plasticity are characterized by their microscale counterparts, e.g., the pressure-sensitivity factor for the classical Drucker-Prager yield criterion is explicitly related to the friction coefficient governing stick-slip events. A significant benefit...

... dynamics social responsibility fracture equation injection ghassemi geothermal reservoir soliman deformation coefficient presentation houston fractured reservoir sustainability reservoir hydraulic fracture isothermal injection cold fluid injection ARMA 22 0453 Thermo-Poroelastic...

... derived the in-situ stresses from the interpreted mechanical properties (Blanton et al., 1999). coefficient deep learning upstream oil & gas artificial intelligence reservoir characterization rhob well logging machine learning artificial neural network lithology ann reservoir...

...., 2012). Organic-rich surfaces can adsorb various gas molecules (N 2 , CH 4 and CO 2 among others) increasing vastly the storage capacity in organic-rich rocks (Busch and Gensterblum, 2011). reserves evaluation coal seam gas reservoir characterization coefficient complex reservoir reservoir...

... for directional injection wells in weakly consolidated sandstone. wellbore integrity sandstone coefficient hydraulic fracturing reservoir characterization permeability wellbore design consolidated sandstone gradient upstream oil & gas redistribution enhanced recovery calculation wellbore...

... ABSTRACT: Biot coefficient α relates the increment of fluid content Δ ζ to an increment of bulk volume strain Δ ε v during the application of an increment of mean stress Δ P under drained conditions i.e. no change in cavity fluid pressure Δ p = 0. The Biot coefficient α is measured...

... reservoir parameters were clarified. Numerical simulation of reservoir considering interlayer water absorption is carried out by using Eclipse. The research results show that mudstone basically has no permeability, saturated water absorption coefficient increases with the increase of injection end pressure...

... oscillators in sliding drilling. united states government drillstring design upstream oil & gas north america government friction directional drilling reduction efficiency drilling operation oscillator change hydraulic oscillator equation node distance friction coefficient oscillator...

... coefficient evaluation displacement matrix classification underground space technology ARMA 22 516 A new analysis method for the influencing factors of surrounding rock stability and its application Peitao, Li. And Quansheng, Liu.* 1. The Key Laboratory of Safety for Geotechnical and Structural...

... drilling efficiency reduction efficiency amplitude upstream oil & gas drilling equipment friction drilling operation vibration drag reduction efficiency engineering constraint coefficient hydraulic oscillator vibration amplitude drillstring design oscillator frequency torque...

... propagation journal pipe upstream oil & gas drillstring design concentration coefficient directional drilling torque coefficient wob equation formula fracture accident relationship mpa fracture toughness extended-reach drilling china university engineering diameter ARMA 22 0541...

... american rock mechanic association mpa coefficient mem ARMA 22 224 3D geomechanical modeling for accurate in-situ stress characterization of a reservoir in Mahu oilfield, China Meng Xianglong, Feng Yongcun, Cai Wenjun, Wang Shiqi, Yan Wei China University of Petroleum (Beijing), Beijing, China Jiang...

... to investigate their prediction performances. The ANN displays a strong relationship with the experimental data with a 98.7%, 87.9% and 97.5% coefficient of correlation for 2, 7 and 28 days respectively. The SVR-GA exhibit a higher accuracy with 98%, 98% and 97.5% coefficient of correlation for 2, 7 and 28 days...

... dimensions based on both the center distance and the box-counting algorithms with values ranging between 1 and 2 with a power-law coefficient varying between 2.31 and 2.69 with high correlation coefficients. However, a few sets do not show fractal dimension may be due to the scattered fractures in the study...

... geology upstream oil & gas orientation reservoir characterization complex reservoir illumination reservoir analog mouydir basin cambro-ordovician coefficient fracture detection djezzar connectivity boualam fracture curvature diagram digital elevation model algeria correspond ARMA...

... seismic slip. The condition of the onset of rapid slip instability is obtained. The occurrence and magnitude of the rapid slide displacement significantly depend on the shape of the post-failure stress-strain curve. The seismic magnitude and coefficient of seismic efficiency are explicitly computed from...

... measurements, such as well logs and seismic data, and calibrate them to direct core measurements. upstream oil & gas reservoir geomechanics coefficient artificial intelligence machine learning wellbore design reservoir characterization geomechanics rock property uncertainty workflow matrix...

... show that under low horizontal stress difference coefficient, spiral perforation is beneficial to the initiation of multi-hole fracture, but the fracture near the wellbore is seriously distorted. Directional perforation under high horizontal stress difference coefficient is favorable for hole...

... material equations. For a regular lattice-type micromechanical model, we derive an exact formula for the Biot coefficient. As anticipated by experimental and numerical studies, the Biot coefficient embodies a nonlinear combination of the elasticity of the solid phase material and the geometry...

... out of or into the reservoir, and the rock behavior will be described by drained moduli. wellbore design coefficient table 1 upstream oil & gas scenario reservoir characterization geertsma moduli reservoir geomechanics simulation modeling poroelasticity effect anisotropy holt...