... cement formulation sheath fluid temperature sheath integrity plastic strain internal pressure injection fluid temperature integrity extension length interface injection time co 2 wellbore cement sheath integrity numerical model injection in-situ stress international journal expansion...

.... This study proposes a methodology for assessing the damage zones widths using artificial neural networks (ANNs). The database used to train the ANNs was built considering several numerical models which adopt geomechanical parameters, fault length, and maximum displacements as input variables to determine...

... dynamics geology gbe operation ghassemi brine permeability injection equation geological subdiscipline sedimentary formation coupling hydraulic fracturing reservoir surveillance production monitoring pore pressure sedimentary reservoir gbe system numerical model porosity sedimentary...

... (e.g., geophysical well logging and laboratory testing) are utilized to initialize numerical models for the preliminary assessment. Both data sources are associated with intrinsic limitations, increasing the uncertainty in the model prediction. In this work, one of the potential CO 2 injection sites...

... phenomenon coupling several physics such as fracture nucleation and growth, fluid flow inside fracture, fluid leak-off, and proppant settling and jamming. An integrated numerical model will be required to understand the physics of proppant transport in hydraulic fractures and guide field operations...

... oil & gas symmetry plane rock damage mechanism explosion shock wave underwater blast load explosive center underwater explosion zhong li shock wave loading failure surface numerical model reservoir characterization strength hydrostatic pressure pressure value peak pressure...

... ABSTRACT: To assess the stability of underground openings by using the numerical modeling tool, the stress state (i.e., initial and induced stresses) should be generated accurately. The objective of the present paper is to propose a methodology to numerically initialize the pre-mining stress...

... ABSTRACT: Brittle rock cutting process with PDC cutter is of importance for the designing of PDC bit. The numerical modeling of this process is a challenging task because it requires to accurately and simultaneously capture the nucleation, propagation, branching, and coalescence of cracks...

..., a model of explosive-water-rock is established by using the software ANSYS/LS-DYNA. Firstly, the reliability of the numerical model adopted is verified by comparing with experimental results. Secondly, the propagation process of the stress wave and the evolution process of failure elements in the rock...

... ABSTRACT: Solids production is a complex physical process which is controlled by several factors including mechanical failure from in-situ stresses and hydrodynamic erosion from fluid flow. Mathematical and numerical models developed for the prediction of sand production, are usually based...

..., such as the fracture geometries and their propagation behaviors. In this study, a numerical model, in the framework of linear elastic fracture mechanics (LEFM) and combing the dual boundary element method (DBEM) and the finite volume method (FVM), is developed to study the hydraulic fracture initiation and propagation...

... sensitivity analysis numerical model rubiandini yield point correlation alsubaih hole size penetration ARMA 21 1787 Extensive hole cleaning optimization to mitigate wellbore instability challenges in shale formations Ahmed, Alsubaih. Basra Oil Company, Basra, Iraq Hayfaa, Swadi , Hussien, Abdulrida...

... and pillar stress was obtained from the numerical models. Surface subsidence was also calculated for each room-and-pillar panel. All three methods meet the stability factor requirement for safe secondary extraction. The Lift Left-Right method exhibits the highest stability factor while the Pillar Splitting...

... in the literature on the influence of subsidence on the casing integrity that has demonstrated better accuracy in the results. In the numerical models presented in the literature, the pore pressure is imposed as an initial condition of the problem to be analyzed, and as a result, the displacement field...

... ratio for the excavated drives. The numerical model is calibrated using the peak particle velocity data of blast vibrations obtained from the field test. The numerical results are in accord with the field observations in the mine. Limited damage to the drives is observed and the dynamic model confirms...

... Oilfield hydraulic fracture fracture geometry interlayer numerical investigation fracture Upstream Oil & Gas Zhang Tang Wang permeability numerical model propagation ARMA 19 2152 Numerical Investigation of Hydraulic Fracturing and Well Placement in Multilayered Shale Oil Reservoirs Using...

... for each model showing the fine differences between the models. Artificial Intelligence exponent hydraulic conductivity 2-parameter model machine learning Fluid Dynamics pressure parameter sorptivity test flow in porous media Parlange numerical imbibition curve numerical model equation...

... ABSTRACT: In this study, bump potential in the vicinity of a fault zone associated with a longwall mining excavation is evaluated with respect to the different stages of shear strain in the normal fault through the use of a numerical modeling technique. The influence of stored and dissipated...

... ABSTRACT: The objective of this paper is to examine the applicability of the rockburst proneness criteria by using the numerical modeling tool. Many rockburst criteria are illustrated by the case of a deep coal mine in France, in which pillarburst (RC2) took place in 1993 in the shaft station...

... validated by comparing the results with previous studies and a case-specific numerical model. The results obtained from analytical equations were comparable with those obtained from a numerical model. The developed analytical equations will provide a handy tool to make daily, weekly and monthly prediction...