Blar i Fakultet for ingeniørvitenskap (IV) på emneord "Petroleumsfag, Petroleumsproduksjon"
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An Experimental Study of Potassium Formate as a Potential Gas Hydrate Inhibitor in a Vertical Pipe
(Master thesis, 2017)Blocking of petroleum producing pipelines with clathrate hydrates of natural gases is a large issue in the industry. It causes loss of income in addition with health, safety and environmental concerns. This master thesis ... -
Analysis and Prediction of Gas Lift Stability from Field Data
(Master thesis, 2017)Producing oil wells on continuous gas lift may under certain operating conditions develop flow instabilities. Prediction on beforehand may enable prevention by design and operational changes. Stability criteria exist, but ... -
Analysis of Downhole Data from Installation of Lower Completion in Long Horizontal Wells at Ivar Aasen
(Master thesis, 2016)In recent years, there has been a significant development in logging tools designed to acquire information of the downhole events during drilling operations. This development has not been as significant in completion ... -
Application of Backpressure Analysis to Gas Condensate Systems
(Master thesis, 2017)The deliverability of a natural gas well refers to its production capabilities under specific conditions and bottomhole flowing pressures. The deliverability is determined through a multipoint test, where the well is ... -
Aspects of Hydrate Management - Deposition Phenomena
(Master thesis, 2016)The purpose of this thesis has been to investigate the factors with the largest influence on the adhesion strength of a hydrate deposit on a solid surface. This has been done through a literature study on the subject, and ... -
Automatic System Optimization of Gas-Lifted Wells Using Extremum-Seeking Control
(Master thesis, 2018)Gas lift optimization is a common artificial lift method, where gas is injected into the well to lower the hydrostatic pressure column of the fluid in the tubing. Subsequently, the bottom hole pressure will also be lowered, ... -
Cold Flow Technical and Cost Efficiency Analysis
(Master thesis, 2017)Nowadays, subsea multiphase pipelines are commonly used in the deepwater oil-gas fields all over the world. However, when operating at such complex deepwater conditions, the problem of solid precipitation arises due to ... -
Drilling Fluid Volume Change due to Hydrate Formation and its Impact on Well Control
(Master thesis, 2017)Natural gas hydrates are crystal structures of water containing gas inside cavities. Hydrates can form if gas and water are present in a system with high pressure and low temperature conditions. Hydrate formation is ... -
Dynamic Autonomous Inflow Control Device - Performance prediction and experimental investigation of a specific rate controlled production valve design
(Master thesis, 2017)Horizontal wells in oil fields with a thin oil layer are known to experience early gas and water breakthrough. Rate controlled production (RCP) valves have been installed by Statoil at the Troll field in order to maintain ... -
An EOR Cycle Optimization Strategy
(Master thesis, 2018)Unconventional reservoirs such as the tight Bakken reservoirs have become an important topic in the oil industry due to the discoveries of enormous volumes of hydrocarbons. The permeability in these formations can typically ... -
Experimental and Numerical Study of Fluid Displacement in Subsea Pipe Sections
(Master thesis, 2017)The objective of the thesis is to study displacement operations in offshore petroleum industry. Typically MEG or Methanol is circulated through parts of the subsea production systems to lower their hydrocarbon content. ... -
Experimental and Numerical Study of Oil-Water Dispersions at the Inlet of a Pipe Separator
(Master thesis, 2018)In the production of petroleum, it is normal to not only produce oil and gas, but also to produce water. Over the lifetime of the fields, the amount of water produced will normally increase. The additional water will later ... -
Factors Affecting the Rheological Properties and Stability of Water-in-Oil Emulsions
(Master thesis, 2018)The focus of this master thesis has been water-in-oil emulsions. Rheological behavior and factors affecting the formation and stability of such emulsions have been investigated. A set of emulsions have been made using ... -
Feasibility study on Subsea Power Generation from Wellstream Heat using a Binary Organic Rankine Cycle
(Master thesis, 2018)Geothermal heat from the subsurface can potentially be used as a clean energy source for offshore oil and gas producing facilities in the future. This thesis investigates the feasibility of thermal energy conversion by the ... -
Hydrate Prevention by Anti-Agglomerants - Parameters Impacting Flow Performance in Systems Where Hydrates are Present
(Master thesis, 2017)Natural gas hydrates are crystalline compounds that, under the right pressure and temperature conditions, may form in hydrocarbon pipelines, causing transport complications. Several methods of countering this have been ... -
Modelling and Analysis of Autonomous Inflow Control Devices
(Master thesis, 2017)Gas and water coning is a significant problem in many oil fields. Inflow control technology is used to limit the negative effects of coning, and newer technology is regularly introduced. This thesis investigates Autonomous ... -
Modelling Phase Equilibria of CO2 Hydrates in Aqueous Solutions of Tetrabutylammonium Bromide
(Master thesis, 2017)The oil and gas industry s increased focus on efficiency in recent times, encourages development of new technologies. Technologies such as; hydrate based desalination, hydrate based gas capture, hydrate based gas transport ... -
Performance Evaluation of a Multi-Branch Liquid-Gas Pipe Separator using Computational Fluid Dynamics
(Master thesis, 2018)The present thesis aims to evaluate the performance of a multi-branch gas-liquid separator by means of 3D computational fluid dynamics (CFD). Thus, numerical simulations of the two-phase system were performed using various ... -
Prediction of Emulsion Flow in Pipes by Non-Newtonian Flow Models and Emulsion Parameters - A Study of Water-in-Oil Emulsions
(Master thesis, 2017)The objective of this master s thesis is to measure emulsion properties, and check if these data combined with flow models enable prediction of emulsion flow in pipes. The two non-Newtonian flow models Power law and ... -
Production Allocation of Oil and Gas: A case Study of the Skarv Field
(Master thesis, 2015)Production allocation refers to the practice of determining how much and where the produced fluids originate from. This means that the produced oil, gas and water need to be tracked back from the commingled flow to the ...