... geologist geology well logging log analysis detector spwla-2024-0118 geant4 experiment rock type th annual logging symposium spwla 65 sigma reservoir characterization simulation disturbance experiment fsf pt neutron projection sensitivity isf pt algorithm contribution...

...) are the main factors that influence the measurement. In contrast, Logging-While-Drilling (LWD) applications are more challenging due to the additional dynamic standoff behavior of sensors mounted in a rotating drill string and potentially changing drilling-fluid environments. Radiationtransport simulations...

... symposium spwla 65 conductivity spwla-2024-0010 university simulation ABSTRACT Ionic properties and concentration significantly influence the response of brine-saturated rock samples to electromagnetic disturbance. However, the dielectric permittivity response of rock samples under different...

... on the performance of those models in water saturation assessment remains to be tested. Frequency-domain dielectric permittivity simulations can model the influence of pore and grain geometries on dielectric permittivity without a need for explicitly defining those parameters. Individual impacts...

... well logging rock type geologist subsurface storage log analysis saturation reservoir supercritical co 2 reservoir simulation spwla 64th geological subdiscipline injection spwla-2023-0054 th annual logging symposium information enhanced recovery interpretation logging symposium co 2...

... decanoate to investigate the role of Na in wettability alteration. MD simulations were performed at 330 K and particle density profiles of water, hydrocarbon and ions inside the illite nanopores are computed. From the density profile of water, organic molecules and ions, the structure of the fluid...

... of this study is to showcase the key geological and reservoir engineering parameters that affect underground hydrogen storage, and demonstrate how petrophysical data could help in screening sites, site characterization, and hydrogen plume monitoring. We utilized numerical simulation modeling to create a base...

... before CO 2 injection and to calibrate the PNL model parameters. Several simulations of PNL response have been performed to forecast the deviation from the acquired baselines, according to the possible arrival of plumes composed by reservoir gas-CO 2 mixtures with different relative concentrations...

... resolution. Full sample images are used to assess recovered sample quality and suitability for analysis, but resolution is not adequate for numerical simulation of rock properties such as porosity & permeability (Lakshtanov et al., 2022). For numerical simulation of rock properties, region-ofinterest (ROI...

... results in deep and smooth radial transition zones where the uninvaded formation is far beyond the depth of investigation of laterolog tools. Deep resistivity values are therefore lower than the true formation resistivity. Additionally, numerical simulations of resistivity logs show that the resistivity...

... in complex scenarios, such as the irregular shaped water slumping observed in this Abu Dhabi Lower Cretaceous limestone reservoir. The inversion based on the Levenberg-Marquardt method successively runs forward simulations matching the measured and synthetic data. Inversion with a 1D layered model provides...

... and simulate logs of dielectric permittivity and conductivity at LWD frequencies, and in some cases where wireline dielectric and array induction inverted dielectric properties are available, at these tool frequencies also. This study presents utilization of this new forward-simulation and the new LWD...

... these interactions affect wettability of the rock and the fluid-flow in organic-rich mudrocks. In this paper, we quantify the mineral-fluid affinity by performing adsorption calculations. Molecular Dynamics Simulations (MDS) are carried out to (i) quantify adsorption of fracturing fluids on the surface of minerals...

...); and a modified gas saturation estimation from a long detector (SAT-Q). Lab modeling and Monte Carlo simulation using a specific tool configuration and given invasion profiles, have been performed for a three-detector MDPNT with a near, far and long spacing from the source. The simulated media surrounding...

... of distribution. Estimated water saturations from the water-filled pore volume. Conventional models such as results of simulations at 1 GHz resulted in an average Complex Refractive Index Model (CRIM) and Maxwell relative error of less than 4%. We observed measurable Garnett (MG), often overlook or oversimplify...

... simulations. We observed significant errors mechanical (HM) processes, which causes significant (more than 30.6% relative error depending on the content uncertainties in geomechanical evaluations. The and distribution of rock constituents) in estimated objective of this paper is to develop a numerical method...

... dispersion tools, however, have very shallow DOI due to their high measurement frequency up to GHz, which most likely confines the measurements within the near wellbore mud-filtrate invaded zones. In this study, effective medium-model simulations were conducted to study different electromagnetic (EM...

... to the conventional C/O and Sigma measurement functions, the new instrument can also realize the quantitative evaluation of gas saturation by the CLYC detector. The inelastic gamma, capture gamma, and thermal neutron distribution in long-detector are simulated by the Monte Carlo method under the condition of tight...

... image stack upstream oil & gas simulation potential difference tortuosity distribution spatial distribution tortuosity elastic property anisotropy university SPWLA 62nd Annual Logging Symposium, May 17-20, 2021 DOI: 10.30632/SPWLA-2021-0087 ANISOTROPY QUANTIFICATION USING HIGH-RESOLUTION...

... in asphaltene content and, in present day, is now 20%. This unique dataset provides a valuable opportunity to constrain a simulation of reservoir fluid mixing processes after charge to present day. The purpose of the simulation is to investigate the factors which impact the evolution of lateral composition...