Blar i Department of Energy and Petroleum Engineering (TN-IEP) på tittel
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Compact Subsea Pipe Separator- Experimental Investigation of Flow Regime in an Inclined Pipe
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-14)The production of petroleum from well is always accompanied by water production, which causes several problems such as loss of pressure in the production line, environmental pollution, corrosion, and issues in transportation ... -
Comparative Analysis and Enhancement of Simplified Drilling Process Simulation Models and Exploring Machine Learning for Real-Time Optimization
(Bachelor thesis, 2023)Real-time optimization of drilling processes is vital for the efficient and safe operation of the oil and gas industry. For this, fast and robust models are required to enable automation safety strategies. Many existing ... -
Comparison Between a Numerical Model and an Analytical Model for Drag Prediction
(Master thesis, 2022)High torque and drag create problems in directional wells. Directional wells have increased in inclination and length over the years, whereas the extended reach wells (ERW) are particularly prone to torque and drag ... -
Comparison of different configurations of a solar-assisted ground-source CO2 heat pump system for space and water heating using Taguchi-Grey Relational analysis
(Peer reviewed; Journal article, 2023)This work deals with the comparison of different optimized configurations of solar-assisted ground-source CO2 heat pump systems using the Taguchi method and Grey Relational Analysis (GRA) when used for simultaneous space ... -
A Comparison of Different Models for Probabilistic Kick Tolerance Calculations
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-14)Kick tolerance is an evaluation of how large kick sizes an open hole section can withstand without threatening the formation integrity at the shoe. If a certain kick size cannot be handled safely, the planned open hole ... -
Comparison of Lost Circulation Material Sealing Effectiveness in Water-Based and Oil-Based Drilling Fluids and Under Conditions of Mechanical Shear and High Differential Pressures
(Peer reviewed; Journal article, 2022)A study was conducted to assess the performance of granular and fibrous lost circulation materials as preventative treatments and in remedial treatment of lost circulation in water-based and oil-based drilling fluids. For ... -
Compatibility between API equations and design limits plots for ellipse and circle of plasticity
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-01)This project presents a methodology to superimpose the API uniaxial and triaxial limits on the design limits plot. Complications due to a recent change of axis are resolved, producing practical design limits plots that ... -
A Comprehensive Completion Method Selection Based on Probability and Impact Matrix for Iris Production HPHT Well
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-14)HPHT well completion require special attention to well design. The conservatism of well completion is constantly put to the test by introducing and qualifying new equipment meant to enhance well performance, minimize HS&E ... -
A compressible viscous three-phase model for porous media flow based on the theory of mixtures
(Peer reviewed; Journal article, 2020)In this paper we focus on a general model to describe compressible and immiscible three-phase flow in porous media. The underlying idea is to replace Darcy’s law by more general momentum balance equations. In particular, ... -
Computational Fluid Dynamics (CFD) study to optimize simulated pressure drop across liner hangers: A field trail approach to improve well integrity by optimizing ECD simulations during well cementing.
(Masteroppgave/UIS-TN-ISØP/2020;, Master thesis, 2020-06-15)Optimizing cementing parameters during the cement job is a challenging task. Accurate pre-job analysis is essential to elude breakdown of the formation to obtain a successful cement job. If the equivalent circulation density ... -
Computational fluid dynamics simulation of buoyant mixing of miscible fluids in a tilted tube
(Peer reviewed; Journal article, 2021)Buoyancy-driven flows and mixing of fluids with different densities occur frequently both in nature and as part of industrial processes within chemical and petroleum engineering. This work investigates the buoyant exchange ... -
Concentric cylinder viscometer flows of Herschel-Bulkley fluids
(Peer reviewed; Journal article, 2019)Drilling fluids and well cements are example non-Newtonian fluids that are used for geothermal and petroleum well construction. Measurement of the non-Newtonian fluid viscosities are normally performed using a concentric ... -
Controlling Pumpability of Geopolymers for Downhole Placement
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-14)Ordinary Portland cement (OPC) is the prime material used to manufacture concrete and as a barrier material in well construction. Cement has its own advantages such as pumpability, setting, bonding to steel and formation, ... -
Convective Heat Transfer and Pumping Power Analysis of MWCNT + Fe3O4/Water Hybrid Nanofluid in a Helical Coiled Heat Exchanger with Orthogonal Rib Turbulators
(Peer reviewed; Journal article, 2021-02)Utilizing nanofluids in heat exchangers can lead to improved thermal performance. Nanofluids with suspended carbon nanotubes are specifically desirable in thermal systems because of their unique capabilities. In this study, ... -
Core Flooding for Analysis of Capillary End Effect and Multiphase Flow Properties
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-07)The non-uniform saturations along the core is called capillary end effect. The capillary end effect is caused by the condition that the capillary pressure is zero outside the core. The presence of capillary end effect is ... -
Corrosion Under Pipe Support Strategy
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-12-14)Due the increment of the incidents related with corrosion under pipe supports (CUPS) at Borealis Plastomer Plant at Chemelot Site located in Geleen, Netherlands, it was decided by the management to face this problem and ... -
Creating Value From Brown Fields Through High-Quality Decision Making
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06)Whether facing pandemics, negative oil prices or other crises, the key to value creation is to make good decisions. Decisions are always about the future and the one thing we know for sure about the future is that it is ... -
Criterion for sufficiently large dither amplitude to mitigate non-linear glitches
(Chapter, 2023)A model describing glitch disturbances is introduced and analysed. The model is used to find the response of glitch disturbances when adding a periodic dither to the input and applying low-pass filtering to the output. ... -
A critical review on production, modification and utilization of biochar
(Peer reviewed; Journal article, 2021)There has been an increased interest in the production of sustainable biochar in the past years, as biochar shows versatile physicochemical properties and, can have a wide applicability in diverse fields. Comprehensive ... -
A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes
(Peer reviewed; Journal article, 2022)The reduction of CO2 emissions has become a global concern. In this regard, the EU intends to cut CO2 emissions by 55% by 2030 compared to those of 1990. The utilization of shallow geothermal energy (SGE) in EU countries ...