... , at a high differential pressure while measuring flow rates, 3. mapping reacted versus unreacted areas radially and axially by measuring matrix hardness with an indentation method and 4, comparing pre-, post- and reference exposure results for various mechanical properties and permeability. Permeability...

.... pressure transient testing geologist deep learning history matching reservoir simulation artificial intelligence production control gel prediction pressure transient analysis reynolds reservoir surveillance machine learning lstm geology injection bhp matrix permeability simulator...

... drilling operation wellbore integrity geological subdiscipline strength matrix mechanism plane reservoir characterization stability engineering shale variation figure figure 9 mpa weakness plane uniaxial compressive strength Introduction Depleted oil and gas fields are good targets...

... natural gas storage wellbore integrity risk and uncertainty assessment risk management operational safety intervention risk assessment matrix frequency implementation gas storage envelope underground gas storage fle radius matrix risk assessment procedure valve severity assessment...

... trained models against each other and selecting a final one for the deployment. Since this is a supervised classification ML problem, a confusion matrix with the metrics, showing accuracy, precision, recall and area under curve (AUC) are the evaluation criteria for comparing models against each other...

... campaign can be deployed in a timely manner. Tracer technology can provide this type of early warning. By including tracers in the P&A projects, either deploying a slug just before the installation of barriers, or embedded in the barrier material matrix, these substances will be detected in the waters...

... geothermal reservoir simulation extraction united states government production forecasting production monitoring geological subdiscipline equation permeability reservoir geomechanics optimization zhang operation moo matrix realization geothermal reservoir optimization empowered generalized...

... stress under the same operating conditions. The injected fluid transport to extraction well from injection well within the interconnected fractures. In the same direction variation of the effective stress, pore pressure both in rock matrix and fractures was observed. Due to the variation of effective...

... complex fracture network physical parameter artificial intelligence neural network mechanism output vector matrix forecast variable bhp In this part, we first clarify the involved physical background and the corresponding governing equations. Then, the principle behind the Att-GRU...

... to perform computationally efficient well-control waterflooding optimization under nonlinear constraints. waterflooding well control reynolds enhanced recovery upstream oil & gas producer insim-bhp matrix perforation artificial intelligence constraint vector production optimization...

... an initial set into the Nonlinear Simultaneous Algebraic Equations (NSAE). The outputs are compared with the desired matrix of zeros to generate the required error. The calculated vectors of errors and its derivation are firstly employed to update the ANN weights through applying the adaption laws...

...); p inv,ave is the gas invaded zone average pressure in a real diffusion process (Pa); p m,ave is the overall matrix average pressure during gas diffusion (Pa); V inv,e is the gas invaded matrix volume during equivalent diffusion (m 3 ); V uninv,e is the uninvaded matrix volume during...

...<italic>Geomodeling of karst, fracture, and matrix properties for the corresponding grid domain</italic> The geomodeling of properties for each grid domain in the geological grid is necessary, as is done in conventional workflows. After geomodeling, fracture and matrix properties from...

.... Damage is triggered by cold and low-salinity water invasion into the formation. Here, we introduce the formation damage mechanisms as a multi-physics/chemistry problem developing in a region near the fracture-matrix interface. Using high-resolution flow simulation models, we investigate the mechanisms...

... are homogeneous within matrix, i.e. compaction effects are not considered. The shale matrix initially contains methane (CH 4 ) component only, in form of free gas and adsorbed phase. Carbon dioxide (CO 2 ) is injected in gaseous form but can appear in both gaseous and adsorbed form in the matrix...

... front inside the matrix, which is key to design a more effective chemically enhanced oil recovery projects in naturally fractured reservoirs. Our workflow is intuitive and based on the simple concept that fine-scale single-porosity models capture fracture-matrix interaction accurately and can hence...

... However; we have determined that applying the GQ method to a true lognormal distribution may be a better approach to determine the relationships between the volumes in each column of the PRMS matrix. In this determination, we assume that the Reserves and ROTR can all be described by a lognormal...

... of increasing the overall efficiency and robustness of the simulation. Numerous decoupling/preconditioning algorithms exist and have been shown to influence the pressure matrix properties, some resulting in matrices more suitable to the characteristics favorable to AMG. Several decoupling/preconditioning...

... (FV) methods. Darcy's equation is discreted by MFD method, while the FV method is used to approximate the saturation equation. The resulting system of equations is then imposed with suitable physical coupling conditions along the matrix/ fracture interfaces. This coupling conditions at the interfaces...

... and a sensitivity analysis was performed to identify the role of gas formation and consequent EOR efficiencies. At the laboratory scale, in-situ gas formation can increase oil recovery by 20% depending on the amount of gas saturation. Also, the CO 2 storage capacity of the shale matrix can be enhanced by 25%, due...