.... By accounting for the thermodynamic properties of the core, drilling fluid, and the variation in the core barrel’s working volume, we developed a thermodynamic model to predict temperature and pressure changes and to investigate the variation of thermodynamic parameters within the core barrel. A digital...

... aperture complex reservoir reservoir geomechanics enhanced geothermal system fracture artificial intelligence matrix geologist hydraulic fracturing temperature field fracture network temperature variation fluid temperature production element fluid pressure geological subdiscipline null...

...M. Hosseinzadeh; V. Tavakoli Summary A quantitative analysis of heterogeneity is crucial for assessing and comparing the factors that influence carbonate formations. In reservoir studies, heterogeneity is defined as the variation in one or a combination of properties within a spatial distribution...

..., this methodology uses mode extraction, local variation enhancement, Gaussian-modulated adaptive thresholding, contour extraction, and refinement based on geometric criteria. Further complemented by Laplacian-based contrast and mean-value-based filtering, the proposed methodology was able to successfully perform...

... fluctuation rock sample discrete element method investigation variation Oil and gas resources are usually trapped within downhole formations; thus, drilling operation is required to create a production channel for developing such reservoirs ( Liu et al. 2020 ; Wei et al. 2022...

... cementing quality. However, the collected cementing data often exhibit real-time variations in data distribution due to differences in well conditions, complexity of operations, and variations in field operations. This presents challenges such as accuracy, timeliness, and adaption to concept drift of model...

...Yanrui Ning; Ge Jin; Ali Tura; Melinda Gale Summary This research explores the variations in hydraulic fracture (HF) propagation orientation and velocity within a zipper-fractured area of the Denver-Julesburg (DJ) Basin. By using a comprehensive analytical approach that integrates crosswell low...

... flow capacity fine-scale model vertical direction geology scaling method permeability heterogeneity measurement variation efficiency february 2025 heterogeneity modeling new lorenz curve Reservoir heterogeneity modeling and permeability upscaling are two important and critical topics...

... distribution pore structure average contact angle clay content three-phase contact line variation mineral evolution wettability evolution wettability rev size mean contact angle During oilfield development, the waterflooding process may take decades to recover the subsurface oil. However...

... between the brine level and the cap may contain water vapor, where negligible variation in temperature exists across the well height. Fig. 1 ( a ) Condensation process occurring in legacy wells due to ingressions of CO 2 from storage reservoirs. ( b ) How the region of condensation in the wellbore...

... drillstem/well testing wellbore design contingency planning operational safety chemical spill subsea system macondo well blowout sc shut-in underground blowout reservoir variation post-blowout discharge post-blowout discharge flowrate oil reservoir cap-and-divert hsieh michael installation...

... with the results from adsorption experiments. These results revealed three distinct regions in the trend of the variation in δ with L e : a rapid increase in Region I ( L e < 10 nm), a slowing increase in Region II (10 ≤ L e ≤ 100 nm), and a gradual increase in Region III ( L e > 100 nm). In addition, k d...

...Faruk Civan Summary Proper correlations of the variations of petrophysical properties like the permeability of naturally fractured porous subsurface formations are developed under different effective stress and thermal deformation modes. The threshold or critical stress and temperature conditions...

... chemistry variation shear rate variation fluid loss rheological property effect stability thickness The superior itemizing and planning design of the exhausting fluids system is the best approach to showing the objective significance of the hydrocarbon vault. Drilling fluids (e.g., oil-based...

... gradient variation gas hydrate decomposition interface drilling operation geological subdiscipline hydrate decomposition interface stability heat transfer hydrate decomposition equation wang mass and heat transfer Natural gas hydrates are crystalline substances formed by combining...

... shale gas evolution reservoir characterization brittleness characteristic mpa fuzzy analytic hierarchy process mineral hydraulic fracturing mudstone evaluation dissipation fracture wellbore design brittleness sandstone stress-strain curve brittleness index variation october 2024...

.... It was observed to strongly increase with decreasing LFC at a given intake GVF and very strongly decrease with increasing intake GVF at a given LFC. The associated percent electric current draw by the HAP motor was seen to vary between 24% and 53% of full-load motor current. Its variation with LFC and intake GVF...

... cylinder simulation emulsion viscosity evolution cylinder pipe separation and treating droplet phase distribution viscosity homogeneous emulsion variation coalescence water-in oil emulsion fraction restart An emulsion is typically created by mixing two immiscible fluids...

...Nan Ma; Zhiyuan Wang; Jianbo Zhang; Peng Liu; Yudan Peng Summary Pipes with diameter reduction and direction variation are very common in deepwater extraction. While the high-pressure and low-temperature conditions may trigger severe hydrate problems, current studies on hydrate particle migration...

... geological subdiscipline strength drilling fluid chemistry mechanism compressive strength variation permeability defoamer pvoh additive bwoc fluid loss additive effect viscosity specimen concentration Primary cementing of casings or liners entails the placement of a cement mixture...