Blar i SINTEF Open på forfatter "Schümann, Heiner"
-
Characterization of flow dynamics and reduced-order description of experimental two-phase pipe flow
Viggiano, Bianca; Skjæraasen, Olaf; Schümann, Heiner; Tutkun, Murat; Cal, Raúl Bayoán (Peer reviewed; Journal article, 2018)Two-phase dispersed and slug flows in a pipe are investigated using proper orthogonal decomposition (POD). The data are acquired through tomographic reconstruction of X-ray measurements, where holdup, cross-sectional phase ... -
Dynamic Process Modeling of Topside Systems for Evaluating Power Consumption and Possibilities of Using Wind Power
Eyni, Leila; Stanko Wolf, Milan Edvard; Schümann, Heiner; Querishi, Ali Hassan (Peer reviewed; Journal article, 2022)Norwegian offshore wind farms may be able to supply power to offshore oil and gas platforms in the near future thanks to the expeditious development of offshore wind technology. This would result in a reduction in CO2 ... -
Estimation of Long-term Power Demand of Oil and Gas Installations using Hybrid Models
Andersson, Leif Erik; Reyes-Lúa, Adriana; Schümann, Heiner; Knudsen, Brage Rugstad (Peer reviewed; Journal article, 2024)A methodology to forecast power demand of oil and gas installations which uses publicly production available data, parametric models and data-driven Gaussian regression methods is presented. The methodology also captures ... -
Experimental investigation of the development of surfactant stabilized oil-water pipe flow downstream of a choke valve
Schümann, Heiner; Simonsen, Galina; Brekken, Christian (Peer reviewed; Journal article, 2023)In wells and multiphase flowlines the presence of valves, pumps and other complex geometries will considerable contribute to dispersion of the phases. In combination with the droplet stabilizing effect of natural surfactants ... -
Experiments and modelling of three-phase vertical pipe flow
Kjølaas, Jørn; Belt, Roel; Wolden, Marita; Schümann, Heiner; Richon, Vanessa (Peer reviewed; Journal article, 2021)A set of two- and three-phase experiments were conducted in a 50 m long 400 vertical pipe using nitrogen, Exxsol D60 and water at 45 bara pressure. The results show that the liquid content and pressure drop are highly ... -
Large scale experiments on high-rate three-phase low liquid loading flows
Kjølaas, Jørn; Unander, Tor Erling; Schümann, Heiner; Wolden, Marita; Holm, Henning (International Conference on Multiphase Technology;2019, Chapter; Peer reviewed, 2019)A comprehensive three-phase flow campaign, funded by Equinor as part of the Tanzania gas field development project [1] [2] [3], was carried out in the SINTEF Large Scale Loop at Tiller in 2017-2018. The experiments were ... -
Literature review on surface-active components in emulsions and foams: Theory and modelling efforts
Simonsen, Galina; Kjølaas, Jørn; Leinan, Paul Roger; Schümann, Heiner (Peer reviewed; Journal article, 2023)In this paper we present a literature review on the role of surface-active components in emulsions and foams. Models are presently unable to accurately predict scenarios involving multiphase flows with complex chemistry, ... -
The Low Emission Oil and Gas Open reference platform—An off-grid energy system for renewable integration studies
Svendsen, Harald Georg; Vrana, Til Kristian; Holdyk, Andrzej; Schümann, Heiner (Peer reviewed; Journal article, 2022)This article introduces and describes the integrated energy system of the Low Emission Oil and Gas Open reference platform. It is a hypothetical case meant to represent a typical oil and gas installation in the North Sea. ... -
Methods for early-phase planning of offshore fields considering environmental performance
Eyni, Leila; Stanko Wolf, Milan Edvard; Schümann, Heiner (Peer reviewed; Journal article, 2022)Extraction and processing of oil and gas with current technologies is energy- and carbon-intensive as well as are the manufacture, transport and installation of the facilities needed for oil and gas production. Nowadays, ... -
Modelling of dispersed oil/water flow in a near-horizontal pipe
Kjølaas, Jørn; Schümann, Heiner; Gonzalez Rengifo, Diana Carolina; Johansen, Stein Tore (Peer reviewed; Journal article, 2022)A gravity-diffusion model was implemented for predicting water concentration profiles in dispersed oil-continuous oil–water flows. In this model, the measured droplet size distributions were used instead of a droplet size ... -
Pipe flow experiments of unstable oil-water dispersions with three different oil viscosities: Flow pattern, pressure drop and droplet size measurements
Gonzalez Rengifo, Diana Carolina; Schümann, Heiner; Kjølaas, Jørn (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 ...