Blar i Institutt for geovitenskap og petroleum på dokumenttype "Journal article"
Viser treff 61-80 av 619
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An attention‐based category‐aware GRU model for the next POI recommendation
(Journal article; Peer reviewed, 2021) -
Automated decision support methodology for early planning phase of a multi-reservoir field
(Peer reviewed; Journal article, 2021)The field planning process is a crucial phase in the life of a hydrocarbon field when many design features must be decided upon. The field development team has the task of finding a configuration of these field design ... -
Automated Log Data Analytics Workflow – The Value of Data Access and Management to Reduced Turnaround Time for Log Analysis
(Peer reviewed; Journal article, 2022)The oil and gas industry of today is undergoing rapid digitalization. This implies a massive effort to transform standard work procedures and workflows into more efficient practices and implementations using machine learning ... -
Automated Mineralogy and Diagnostic Leaching Studies on Bulk Sulfide Flotation Concentrate of a Refractory Gold Ore
(Peer reviewed; Journal article, 2023)Obtaining detailed and precise information from a classified refractory gold ore has been a long-standing challenge in mineral processing and process mineralogy. Although the concept of diagnostic leaching has been extensively ... -
Automated porosity estimation using CT-scans of extracted core data
(Peer reviewed; Journal article, 2022)Estimation of porosity at a millimeter scale would be an order of magnitude finer resolution than traditional logging techniques. This enables proper description of reservoirs with thin layers and fine scale heterogeneities. ... -
Automated well log depth matching: Late fusion multimodal deep learning
(Peer reviewed; Journal article, 2022)Petrophysical interpretation and optimal correlation extraction of different measurements require accurate well log depth matching. We have developed a supervised multimodal machine learning alternative for the task of ... -
Automated Well-Log Depth Matching – 1D Convolutional Neural Networks Vs. Classic Cross Correlation
(Peer reviewed; Journal article, 2022)During drilling and logging, depth alignment of well logs acquired in the same borehole section at different times is a vital preprocessing step before any petrophysical analysis. Depth alignment requires high precision ... -
Automatic lithology prediction from well logging using kernel density estimation
(Journal article; Peer reviewed, 2018)Technologies of real-time data measurement during drilling operation have kept the attention of petroleum industries in the past years, especially with the benefit of real-time formation evaluation through logging-while-drilling ... -
Bayesian rock physics inversion using a localized ensemble-based approach - with an application to the Alvheim field
(Peer reviewed; Journal article, 2023)We describe, implement and show results of a localized ensemble-based approach for seismic AVO inversion with uncertainty quantification. Ensembles are simulated from continuous prior probability distributions for fluid ... -
Behavior of compacting reservoirs with restricted entry wells
(Journal article; Peer reviewed, 2019)We investigate the simultaneous effect of changes in thickness, permeability and porosity. These depend on changes in fluid pressure. Fluid withdrawal in stress-sensitive reservoirs may have serious environmental, technical ... -
Bilinear Pressure Signatures of Horizontal Wells
(Journal article; Peer reviewed, 2003) -
Bivalve beds reveal rapid changes in ocean oxygenation in the Boreal Middle Triassic – a case study from Svalbard, Norway
(Peer reviewed; Journal article, 2023)A fossil-rich interval in the organic rich marine black mudstone of the Middle Triassic Botneheia Formation on eastern Svalbard was logged in high-resolution on an extremely well exposed section with emphasis on bivalve ... -
The borehole thermal energy storage at Emmaboda, Sweden: First distributed temperature measurements
(Peer reviewed; Journal article, 2022)Xylem in Emmaboda, Sweden, has one of the first borehole thermal energy storage (BTES) sites storing excess heat and has been previously thoroughly studied and monitored. Here, the results from distributed temperature ... -
Bounds of elastic parameters characterizing transversely isotropic media: Application to shales
(Journal article; Peer reviewed, 2016)Several rocks, and in particular shales, are often described as transversely isotropic (TI) materials. Geophysical data coverage does not always permit reliable determination of all five elastic parameters, neither in ... -
Brittle-viscous deformation of vein quartz under fluid-rich lower greenschist facies conditions
(Journal article; Peer reviewed, 2015)We studied by Electron BackScatter Diffraction (EBSD) and optical microscopy a coarse-grained (ca. 0.5–6 mm) quartz vein embedded in a phyllonitic matrix to gain insights into the recrystallization mechanisms and the ... -
Bubble Formation and Motion in Liquids—A Review
(Journal article; Peer reviewed, 2023)In flotation, a bubble acts as a carrier for attached particles. The properties of the gas–liquid interface of the bubble are one of the main factors determining the bubble motion and flotation efficiency. Monitoring of ... -
Burial induced changes in physical sandstone properties: A case-study of North Sea and Norwegian Sea sandstone formations
(Journal article; Peer reviewed, 2017)The changes in physical properties of sandstones with burial depth are a result of mechanical and chemical compaction processes. These processes are affected by rock microstructure, pressure regimes and temperature history. ... -
Burst Dynamics, Upscaling and Dissipation of Slow Drainage in Porous Media
(Peer reviewed; Journal article, 2021)We present a theoretical and experimental investigation of drainage in porous media. The study is limited to stabilized fluid fronts at moderate injection rates, but it takes into account capillary, viscous, and gravitational ... -
Can Heating Induce Borehole Closure?
(Peer reviewed; Journal article, 2020)The current study shows that heating a cased borehole in low-permeability shale rock can induce plastic deformation, leading to the closure of the casing annulus and decreasing annulus connectivity. The thermally induced ... -
Capacity Enhancement in Rock and Tunnel Engineering in Nepal
(Journal article, 2022)In the recent past, infrastructure development activities have gained momentum in Nepal. Many roads are being and will be upgraded to enhance transport efficiency. The hydropower development activities are in full momentum. ...