Blar i Institutt for geovitenskap og petroleum på tidsskrift "Journal of Petroleum Science and Engineering"
Viser treff 21-30 av 30
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Pipe flow experiments of unstable oil-water dispersions with three different oil viscosities: Flow pattern, pressure drop and droplet size measurements
(Peer reviewed; Journal article, 2022)The transport of oil-water dispersions in petroleum production pipelines is difficult to predict and requires special attention since it affects the performance of the entire system. For future field developments it is ... -
Prediction of CO2 diffusivity in brine using white-box machine learning
(Peer reviewed; Journal article, 2020)Accurate knowledge of the diffusivity coefficient of CO2 in brine has a significant effect on the design success and monitoring of CO2 storage in saline aquifers, which is a part of carbon capture and sequestration (CCS). ... -
Reduced well path parameterization for optimization problems through machine learning
(Peer reviewed; Journal article, 2021)In this work we apply a recently developed machine learning routine for automatic well planning to simplify well parameterization in reservoir simulation models. This reduced-order parameterization is shown to be beneficial ... -
Robertson-Stiff rheological model in fracture flow
(Peer reviewed; Journal article, 2022)Robertson-Stiff rheological model has been recently shown to provide a more accurate description of a drilling fluid than the Herschel-Bulkley model. In this short communication, a relation between the pressure gradient ... -
Simulation of fluid flow through real microannuli geometries
(Journal article; Peer reviewed, 2020)Debonding of well cement towards casing or rock, i.e. microannuli formation, is a typical failure mode of cement barriers. Consequently, such microannuli may act as leak paths during leakages of downhole fluids such as ... -
Subsea field layout optimization (Part I) – directional well trajectory planning based on 3D Dubins Curve
(Peer reviewed; Journal article, 2022)Directional well trajectory planning, which includes the optimization of the drilling site location and the trajectory between the drilling site to the completion interval, plays an important role in reducing subsea field ... -
Subsea field layout optimization (part II)–the location-allocation problem of manifolds
(Peer reviewed; Journal article, 2022)The location-allocation problem of manifolds, which is a part of subsea field layout optimization, directly affects the flowline cost. This problem has always been studied as a mixed-integer nonlinear programming (MINLP) ... -
Subsea field layout optimization (part III) --- the location-allocation problem of drilling sites
(Peer reviewed; Journal article, 2022)This study proposes an efficient method to optimize the subsea field layout with the aim of minimizing the subsea field development cost, based on the two methods introduced in Part I and Part II for solving the well ... -
Water flooding of sandstone oil reservoirs: Underlying mechanisms in imbibition vs. drainage displacement
(Peer reviewed; Journal article, 2022)In this work the effect of wettability in waterfloods of viscous oil is investigated in a combination of experiments in sandpacks and microfluidic chips. Thirty-nine sand-pack flooding experiments were conducted to investigate ... -
Well production forecast in Volve field: Application of rigorous machine learning techniques and metaheuristic algorithm
(Peer reviewed; Journal article, 2021)Developing a model that can accurately predict the hydrocarbon production by only employing the conventional mathematical approaches can be very challenging. This is because these methods require some underlying assumptions ...