... penetration force reservoir characterization numerical solution parameter identification cone numerical result identification concrete specimen united states government reservoir geomechanics penetration shearhead test contour calculation formation evaluation damage variable penetration...

... injured during the process. One of the major environmental impacts of an open pit blast is the flyrock which is a fragment of a rock, that can be any size, it flies after the blast with no calculated direction which may hit the surrounding infrastructures or persons, causing damage and it is a risk...

... and drainage process. Additionally, we calculate the seepage field of the lining and the long-term stress state after the formation of stable seepage, and analyze the structural stability of the lining under the condition of graded drainage. We investigate the influence of structural elements such as rebars...

... "tectonic strain" calibration to subsurface measurements. Estimating stresses in a 3D mechanical earth model (MEM) can be difficult away from well control. We present a novel workflow for simplifying theoretical stress calculations, then calibrating a seismic-driven MEM to log-based S HMIN profile(s...

... europe government reservoir geomechanics high pressure high temperature geology hpht depletion reservoir compaction hpht field geomechanical calculation deformation calculation cmi bullet norwegian continental shelf constitutive model compaction geological subdiscipline subsidence...

... are calculated based on advection in the injection layers and diffusion in the bounding layers. The induced stresses are calculated based on these fields, using expressions for finite cylinders with elevated temperatures or pressures. Together with the virgin stress field, this provides input for the risk...

... ABSTRACT Formation pressure is a key parameter in the process of oilfield exploration and development. In this study, a novel deep learning model is proposed for accurate calculation of formation pressure. Particularly, making use of the long short-term memory (LSTM) network in solving...

... government reservoir geomechanics climate change sequestration buoyancy case mobility upstream oil & gas rock type enhanced recovery reservoir characterization regime aquifer sarris buoyancy regime gravanis surface uplift calculation saline aquifer caprock deflection boundary condition...

... of the variation in each of the orthogonal directions was greater than the calculated orthotropy in the laboratory test results in the three mutually perpendicular orientations. Therefore, the mine rocks were assumed to be elastically isotropic where E = 70 GPa. In-situ stress measurements taken at the Homestake...

... to account for common rock behaviors such as creep and plasticity. The approach also enables training of machine learning-based constitutive models by allowing back propagation of errors through the finite element calculations. This enables strongly enforcing known physics, such as conservation of momentum...

... of them are formulated the implicit method, which makes it difficult to obtain the calculation convergence for the complex and rapid fracturing processes (e.g. fracture intersections and unstable fracture growth). As a solution to this problem, the Combined Finite-Discrete Element Method (FDEM) (Munjiza...

... government pressure distribution calculation pressure loss fracture propagation path displacement friction construction parameter ARMA 23 858 Research on Targeted Hydraulic fracturing control method based on theoretical model W.Z. WANG, G. YANG, H.G. WANG CNPC Engineering Technology R&D Company...

... is used for numerical calculation. According to the influence laws of the plastic zone, the maximum displacement around the cavern, equivalent strain and volume shrinkage rate, the stability of the salt cavern gas storage when the wells are arranged in a triangle pattern is analyzed. And the pillar width...

... OpenFOAM calculation software to verify the availability of the model and the feasibility of the method. 1. INTRODUCTION The US energy information administration estimates that the world’s total shale oil reserves are 345 billion barrels, including 75 billion barrels in Russia, 58 billion barrels...

..., rock-bit interaction, the drilling tool structure, an inversion calculation model of the rock anisotropy index is established to reveal the drilling direction in the actual drilling process. Further considering the drift effect of biasing unit on the bit, the trajectory of the prediction section...

.... Additionally, tensile failure and shear failure may occur in the weakly consolidated sandstone reservoirs since the pore pressure increases around the injection well. In this paper, we provide an analytical method for fracture pressure calculation of directional injection wells in weakly consolidated sandstone...

... logging reservoir geomechanics gradient north dakota artificial intelligence pressure gradient increase log analysis injection case inyan kara case study rasouli production control fracture gradient pressurized saltwater disposal ndic calculation ARMA 22 0531 Simulation of Drilling...

... of the backfill mass may be exposed, and a risk of failure or instability due to gravity loading can occur if the backfill is not strong enough. strength friction operation tan backfill cohesion backfilled stope metals & mining interface calculation kpa reservoir characterization backwall...

... ABSTRACT: The object-oriented software concept is applied to material mechanics calculations. The result is a comprehensive predictor-corrector which has been employed to solve virtually all of the constitutive exercises in a mature, general-purpose, finite element program. In addition...

... mechanic wellbore design synthetic sandstone journal cement criterion gutierrez characteristic tunnel rockburst study wibisono mpa calculation compressive strength international journal mining science ARMA 22 2032 Laboratory Characterization of a Synthetic Sandstone for Tunnel Rockburst...