Blar i UiS Brage på forfatter "Skadsem, Hans Joakim"
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Interfacial Dynamics of Miscible Displacement of Shear-Thinning Fluid in a Vertical Channel
Zhang, Yao; Rabenjafimanantsoa, Andrianifaliana Herimonja; Skadsem, Hans Joakim (Peer reviewed; Journal article, 2023)Abstract The displacement of a shear-thinning fluid by a denser and less viscous Newtonian fluid in a vertical duct is investigated using experiments and numerical simulations. We study how shear-thinning and increased ... -
Investigation of vibration assisted cementing - a CFD study
Mevik, Vegard (Master thesis, 2021)Abstract Primary cementing operations in the oil and gas industry are considered critical and complicated. For cementing operations to be successful, the fluid displacement in the annular volume has to be close to perfect. ... -
Measurement of Viscosities and Friction Pressures in Non-Newtonian Fluids
Rahimi, Nora Nafiseh (Bachelor thesis, 2021)The purpose of this bachelor project is to investigate the correlation between friction pressure predictions inferred from rheometer measurements and actual friction pressures in a pipe. A modular pipe flow loop is designed ... -
Numerical modelling of reverse circulation cementing with density unstable displacements in eccentric annulus
Bjelland, Anders (Master thesis, 2021)This dissertation investigates the mechanics involved in reverse circulation cementing (RCC) with numerical modelling. Numerical simulations are done by utilising a computational fluid dynamics (CFD) software (OpenFOAM). ... -
A numerical study of density-unstable reverse circulation displacement for primary cementing
Skadsem, Hans Joakim; Kragset, Steinar (Peer reviewed; Journal article, 2022)Primary cementing of the casing string is the operation where the annular space behind the casing is displaced to a cement slurry. Once hardened, the cement should form a solid annular barrier and provide zonal isolation ... -
Permeability of Cement Plugs In Steel Pipes and Effects of Treatment Material Injection
Høie, Christian (Bachelor thesis, 2021)Wellbore integrity is a common challenge in the oil and gas industry. Despite all measures in place, the integrity is often threatened. The integrity of the well is dependent on zonal isolation, effort is made to ensure ... -
Pipe Viscometer for Continuous Viscosity and Density Measurement of Oil Well Barrier Materials
Nogueira Lima, Victor; Randeberg, Erlend; Taheri, Amir; Skadsem, Hans Joakim (Peer reviewed; Journal article, 2023)The barrier material is a crucial component for wells, as it provides mechanical support to the casing and prevents the uncontrolled flow of formation fluids, ensuring zonal isolation. One of the essential prerequisites ... -
Prediction of mechanical friction forces on casing being run
Larsen, Edward (Bachelor thesis, 2023)In recent years, advancements in drilling technology have led to increasingly complex wellbore trajectories, particularly in the case of horizontal wells and extended reach wells (ERWs). This complexity necessitates highly ... -
Restoration of annular zonal isolation using localized casing expansion (LCE) technology: Treatment of near-horizontal test sections containing a free-water channel
Beltran Jimenez, Katherine; Skadsem, Hans Joakim; Sunde, Jonas Kristoffer; Gardner, Dave; Wolterbeek, Timotheus K T; Cornelissen, Erik; Keultjes, Wout J. G. (Peer reviewed; Journal article, 2021-11)Fluid migration behind casings is a well integrity problem that can result in sustained casing pressure, undetected leaks to the environment, and potentially very difficult remediation attempts. Traditional methods for ... -
Small scale thermohaline ocean circulation
Wanyenze, Joan Shanita (Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)Upon examining the how convective flows are generated in the ocean, Henry Stommel presented a simple idealized model called the Stommel model (1961) to better understand how salinity and temperature differences can affect ... -
Triaxial behavior of a stabilized and a highly porous oil well cement paste at different saturation and drainage conditions
Lima, Victor Nogueira; Skadsem, Hans Joakim; Beltrán-Jiménez, Katherine; Zhemchuzhnikov, Alexandr; Velloso, Raquel Quadros; Silva, Flavio de Andrade (Peer reviewed; Journal article, 2022)Well cement is the most common barrier material in wells for geothermal and hydrocarbon production. As cements are exposed to hydrostatic loads and periods of deviatoric loading in wellbore environments, it is important ... -
Undersøking av egenskapene til Polyanionisk Cellulose blandet med vann som sirkulerer gjennom en strømningssløyfe
Ryningen, Gro. (Bachelor thesis, 2021)Denne oppgaven er strukturert i to hoveddeler. Den første delen omhandler noen fundamentale roller borevæske har under boring. Det er i hovedsak fokusert på sirkulasjonssystemet i en boreoperasjon, hovedegenskapene til ... -
Validering av ekvivalent sirkulasjonstetthet for offshorebrønner i Norge ved bruk av den nettbaserte brønnplanleggingsplattformen DrillPlan
Svendsbøe, Jan-Arthur Skartland (Master thesis, 2022) -
Vibration-assisted annular fluid displacement for rig-less well abandonment operations
Skadsem, Hans Joakim; Giljarhus, Knut Erik Teigen; Øijordsbakken Fredheim, Fiona; van Riet, Egbert; Keultjes, Wout J. G. (Peer reviewed; Journal article, 2022-06)Through-tubing abandonment is the operation where the production tubing is cut or punched and cemented inside the production casing. This can establish a full cross-sectional barrier or isolation in wells where the cement ... -
Wellbore stability analysis for an extended-reach well on Ekofisk
Diaz Lopez, Jairo Alexander (Master thesis, 2022)