Department of Energy and Petroleum Engineering (TN-IEP)
Recent Submissions
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Formulation Development of Drilling Fluids with DOE Mixture Model Design Technique.
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-09)The aim of this thesis study is to investigate the effect of three components of a formulation of an oil-based drilling fluid, and how the variation of the percentage of each component affects the rheological behavior of ... -
New Nanoparticle Based Drilling Fluid Formulation and Characterization: Experimental and Simulation Studies
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020)Drilling fluids are an essential part of any drilling operation and it offers several functions of great importance, such as controlling the wellbore pressures and transporting cuttings to the surface. The design of a ... -
Dynamic Acceptance Criteria for Periodic Testing of Downhole Safety Valves
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-15)Downhole Safety Valves (DHSVs) are periodically leak tested as part of the preventative maintenance program on an oil and gas producing facility. The last couple of years, the oil and gas industry on the Norwegian Continental ... -
Permanent plug and abandonment on Gyda field, challenges, solutions, and qualification of creeping formation to be used as a well barrier in Gyda
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06-14)Well plugging and abandonment (P&A) presents a very substantial challenge to oil and gas operators, and this challenge will increase exponentially in the coming decades. P&A operation cost the operators billions of dollars ... -
Experimental Investigation and Transient Flow Modelling of the Bullheading Process
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)The main objective of this thesis was to design and study a physical laboratory scale model, to simulate a kick and push it through the bullheading method. The air bubble was injected in a cylindrical loop system filled ... -
Assessing the Reliability of Physical Non-Newtonian Fluid Models for Saline FLOPAAM Polymer Solutions
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07)Experiments were conducted to investigate the impact of salt (NaCl) on rheological properties of specifically FLOPAAM 5115 VHM and FLOPAAM 3630-S polymers. These polymers were dissolved in brines of various salinity levels ... -
PI Regulation in CBHP-MPD Simulation using a Transient Flow Model
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-06)An introduction to control engineering theory is given. The thesis further explores the implementation of a PI regulator in a transient flow model based on the AUSMV scheme. Optimal regulator parameters are important in ... -
Influence of Adsorption Layer Thickness in Tight Compressible Shales subject to Gas Production
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)The gas transport in shale nanopores has always been a major concern in developing shale gas reservoirs. Different gas flow regimes in shale nanopores have been studied and classified during recent years. Some mathematical ... -
An Experimental Investigation of Density-Unstable Displacement in a Vertical Annulus with Relevance to «Reverse Heavy Over Light" Cementing Technology
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)Primary cementing of casing is considered a critical and complex well operation. During the operating, the drilling fluid is displaced by pumping a fluid train of washer, spacer, and cement slurry into the well. The aim ... -
Rigless Tubing Retrieval for Plug and Abandonment and Slot Recovery Operations on the Norwegian Continental Shelf
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2020-06-15)The conventional way of performing permanent P&A operations on the NCS have been with the use of a drilling rig. It is believed that this is not the optimal unit for the purpose, as they are costly to run with day rates ... -
Pre-feasibility Study for Drilling a Multilateral Well (TAML 4) in an Oil Field in Ecuador Based on a Technical, Economic, and Risk assessment models.
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-05)The oil and gas industry is constantly in search of developing new technologies that allow to reduce operational costs and maximize the recovery of hydrocarbons in onshore and offshore fields. There are several alternatives ... -
Prediction efficiency of immiscible Water Alternating Gas Performance by LSSVM-PSO algorithms
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020)In this work the aim is developing LSSVM-PSO model capable of capturing the interplay between the most influential parameters (mechanisms) and recovery factor (RF) of WAG process in layered reservoirs. In a previous work ... -
simulation of CO2 convections in porous media
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020)Global warming is one of the challenges the world faces in the modern era. Therefore, the injection of carbon dioxide into the geological layers is one of the methods which have been used to reduce the emissions of carbon ... -
Automated Characterization of Non-Newtonian Fluids Using Laboratory Setup
(Peer reviewed; Journal article, 2020-07)The automation towards drilling fluid properties’ measurement has been pursued in the recent years in order to increase drilling efficiency with less human intervention. Adequately monitoring and adjusting density and ... -
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 ... -
Particle Settling in shear thinning non-Newtonian drilling fluids : Effect of oscillatory motion
(PhD thesis UiS;537, Doctoral thesis, 2020-09)When drilling fluids circulate through the well and during the solids control operations, they are exposed to vibrations and oscillations of different frequencies and amplitudes. The secondary flow structures in oscillatory ... -
Selecting the Optimal Configuration for a Solar Air Heater Using the Grey–Taguchi Method
(Peer reviewed; Journal article, 2020-03)In this study, a typical Grey–Taguchi method has been applied in order to select the optimal configuration of a solar air heater to achieve optimum performance. The analysis is performed for different system configurations ... -
Optimizing the separation factor along a directional well trajectory to minimize collision risk
(Peer reviewed; Journal article, 2020-04)Optimizing the trajectory of directional wellbores is essential to minimize drilling costs and the impacts of potential drilling problems. It poses multi-objective optimization challenges. Well-design optimization models ... -
Numerical Investigation of Non-Darcy Flow Regime Transitions in Shale Gas Production
(Peer reviewed; Journal article, 2020-07)Shale gas reservoirs are organic rich formations with often ultra-low permeability. Gas is stored in free and adsorbed form. Conventional Darcy flow cannot fully describe the gas transport in such porous media. It is thus ... -
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, ...
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