Vitenskapelige publikasjoner (TN-IER): Nye registreringer
Viser treff 21-40 av 108
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Potential for improving the efficiency of terrigenous oil deposits waterflooding with the use of low salinity technology at fields of the Tatarstan Republic
(Peer reviewed; Journal article, 2022) -
Optimum directional well path design considering collapse and fracture pressures
(Peer reviewed; Journal article, 2022)Well path optimisation is often done based on the wellbore stability where the production related concerns are ignored. In fact, many of the studies carried out in the past have not included hydraulic fractures into their ... -
Assessment of parameters effectiveness in the reserve estimation methods applicable to coal bed methane reservoirs
(Peer reviewed; Journal article, 2022)The reserve estimation of coal bed methane (CBM) reservoirs is ascertained through the analytical methods (volumetric method, material balance equation and decline curve analysis). However, the adoption of reserve estimation ... -
Influence of Sandstone Mineralogy on the Adsorption of Polar Crude Oil Components and Its Effect on Wettability
(Peer reviewed; Journal article, 2022)The crude oil–brine–rock (COBR) system is a combination of contacting phases where polar organic molecules in crude oil, inorganic ions from the brine phase, and charged mineral surfaces participate in complex interactions. ... -
Assessment of a mature hydrocarbon field in SE Czech Republic for a CO2 storage pilot
(Lecture, 2022)Preparation and execution of a CO2 storage pilot project is one of the first logical steps in the effort to kick-start CCS in the region of Central & Eastern Europe, utilizing onshore geological structures for permanent ... -
Theoretical Comparison of Two Setups for Capillary Pressure Measurement by Centrifuge
(Peer reviewed; Journal article, 2022)There are several approaches for the calculation of capillary pressure curves in porous media including the centrifuge method. In this work, a new installation of centrifuge test is introduced and compared with the traditional ... -
Probabilistic model-error assessment of deep learning proxies: an application to real-time inversion of borehole electromagnetic measurements
(Peer reviewed; Journal article, 2022)The advent of fast sensing technologies allow for real-time model updates in many applications where the model parameters are uncertain. Once the observations are collected, Bayesian algorithms offer a pathway for real-time ... -
Comparison of intercept methods for correction of steady state relative permeability experiments for capillary end effects
(Peer reviewed; Journal article, 2022)Steady-state relative permeability experiments are performed by coinjection of two fluids through core plug samples. The relative permeabilities can be calculated using Darcy’s law from the stabilized pressure drop and ... -
Thermal stability and interactions with sedimentary rocks under typical reservoir conditions of selected pyridines investigated as phase partitioning tracers
(Journal article, 2021)Pyridine, 2-hydroxy-6-methylpyridine, 3-hydroxypyridine, and 4-methoxypyridine are evaluated as potential phase-partitioning oil field tracers. Their stability is tested in a brine for 12 weeks at temperatures between 25 ... -
An interactive sequential-decision benchmark from geosteering
(Peer reviewed; Journal article, 2021)During drilling, to maximize future expected production of hydrocarbon resources, the experts commonly adjust the trajectory (geosteer) in response to new insights obtained through real-time measurements. Geosteering ... -
Characterization based machine learning modeling for the prediction of the rheological properties of water‑based drilling mud
(Peer reviewed; Journal article, 2021)The successful drilling operation depends upon the achievement of target drilling attributes within the environmental and economic constraints but this is not possible only on the basis of laboratory testing due to the ... -
Prediction of Stress Correction Factor for Welded Joints Using Response Surface Models
(Chapter, 2021)While performing fatigue reliability analysis of the butt-welded joints it is vital to estimate the Stress Concentration Factor (SCF) at these joints. A common approach adopted by industry to estimate the SCF at weld toes ... -
Probability elicitation using geostatistics in hydrocarbon exploration
(Peer reviewed; Journal article, 2021)The exploratory phase of a hydrocarbon field is a period when decision-supporting information is scarce while the drilling stakes are high. Each new prospect drilled brings more knowledge about the area and might reveal ... -
Steady State Gas Flow from Tight Shale Matrix Subject to Water Blocking
(Peer reviewed; Journal article, 2021)This work studies 1D steady-state flow of gas from compressible shale matrix subject to water blocking toward a neighboring fracture. Water blocking is a capillary end effect causing wetting phase (e.g., water) to accumulate ... -
CO2 Convective Dissolution in Oil-Saturated Unconsolidated Porous Media at Reservoir Conditions
(Peer reviewed; Journal article, 2021)During CO2 storage, CO2 plume mixes with the water and oil present at the reservoir, initiated by diffusion followed by a density gradient that leads to a convective flow. Studies are available where CO2 convective mixing ... -
Ensemble-based constrained optimization using an exterior penalty method
(Peer reviewed; Journal article, 2021)In science and engineering, non-linear constrained optimization has been a useful mathematical technique for many practical applications. Of interest to us is its applicability in the modeling and prediction of hydrocarbon ... -
Variation of the partition coefficient of phase-partitioning compounds between hydrocarbon and aqueous phases: an experimental study.
(Peer reviewed; Journal article, 2021)Many non-ionic chemical compounds will form real solutions in equilibrium between two immiscible phases in contact. The partition coefficient (K) is defined as the quotient between the equilibrium concentration of the ... -
Visual investigation of CO2 dissolution and convection in heterogeneous porous media at reservoir temperature and pressure conditions
(Peer reviewed; Journal article, 2021)CO2 convective mixing in saline aquifers has been widely studied numerically and experimentally. Reservoir heterogeneity is significant for CO2 convective mixing and experimental studies are still limited. In this study, ... -
Investigating the PS seismic imaging of faults using seismic modelling and data from the Snøhvit field, Barents Sea
(Peer reviewed; Journal article, 2021)PS seismic data from the Snøhvit field are compared with seismic modelling to understand the effect of azimuthal separation and incidence angle on the imaging of faults and associated horizon discontinuities. In addition, ... -
Constrained non-linear AVO inversion based on the adjoint-state optimization
(Peer reviewed; Journal article, 2022)Pre-stack AVO inversion of seismic data is a modeling tool for estimating subsurface elastic properties. Our focus is on the model-based inversion method where then unknown variables are estimated by minimizing the misfit ...