Browsing Master's theses (TN-IEP) by Issue Date
Now showing items 1-20 of 113
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Dynamic modelling of ram BOP
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018)As the closing time of Blowout Preventer rams is safety critical, this thesis proposes a dynamic model to calculate the closing time of a ram Blowout Preventer. The thesis work includes guidelines to recreate such a model ... -
Drilling Optimisation on the Norwegian Continental Shelf: Opportunities in Well Design Practice
(Master thesis, 2018-04-17)The purpose of this thesis was to attempt to provide evidence that Norway’s drilling fraternity is long overdue for a re-think in the way it drills wells. In so doing, the author has chosen to focus on slim well drilling ... -
Experimental Investigation of Heavy over Light Fluid Mix Phenomena in Vertical Wells
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-05)The Heavy over Light (HOL) solution, invented by Reelwell, is a main feature of the Reelwell Drilling Method (RDM) and has the potential to improve the capability to drill through challenging pressure zones. This solution ... -
Investigating the impact of solvent salinity on the viscometric functions of IOR polymers
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)One of the promising methods of enhanced oil recovery (EOR) is injection of polymers dissolved in low salinity water. This leads to a dramatic increase in the sweep efficiency due to increased apparent viscosity. It is ... -
Flow Investigation of Stall and Choke on Axial Compressor using CFD
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)The complicated nature of axial compressor fluid dynamics instabilities such as stall and choke when utilizing air power left a lot of room for investigation during the state of operation. This dynamic instabilities ... -
Modelling and Simulation of Annular Pressure Build up
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Annular pressure buildup (APB) has been a concern for well design in the recent years. It is a phenomenon that relates mainly to subsea wells with possibly no means to release the pressure building up in closed annuli. ... -
Simultaneous AVO inversion and seismic lithology cube estimation by using PP and PS angle stack seismic data of the Oseberg Field, North Sea
(Masteroppgave/UIS-TN-IER/2018;, Master thesis, 2018-06)Converted seismic wave data is not yet commonly used in oil industry. In an offshore environment Ocean Bottom Cables (OBCs) are needed to register the converted S-waves in addition to the P-waves which makes the acquisition ... -
Well Barrier Restoration Across Dual Cemented Liners
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)In the past years there has been an increased focus on decommissioning of wells in the NCS. Decommissioning of wells introduces significant investments with no financial returns and has for those reasons historically had ... -
FEM Modelling and Simulation of Production Casing with Local Wear Damage
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Field data show that casing and production tubing experiences wear on both the internal and external parts of the tubular. The main mechanisms of the wear are the mechanical friction between drill string and casing, ... -
Dashboard for visualization, evaluation and modeling of wellbore and field H2S production
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)For several years, continuously increasing amounts of hydrogen sulfide (H2S) are being produced from numerous fields on the Norwegian Continental Shelf as a result of reservoir souring. Reservoir souring – increasing ... -
An Overview and Discussion of MPD Systems used in Offshore Operations
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Globally, established fields are reaching maturity and easily accessible reserves have already been exploited. The remaining reserves are generally more difficult to drill and attempting to drill them using conventional ... -
Understanding Leakage Rates in Permanently Abandoned Wells by Studying Natural Hydrocarbon Seepages
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Permanent plug and abandonment (PP&A) of wells is steadily becoming more important on the Norwegian Continental Shelf (NCS), as a large number of fields are approaching end of their productive life. Combining operational, ... -
pH Development Analysis of Alkaline and Low Salinity Water Flooding in sandstone cores
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Low salinity (LS) water flooding has been in the center of interest for conventional oil recovery in sandstone reservoir for more than two decades because of its low cost and potential for increased oil recovery. Though ... -
Well Modelling of H2S Production on a Field in the North Sea
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Hydrogen sulphide production can prove to be a very costly affair for exploration and production companies. Failure to implement efficient H2S control and mediation strategies can lead to a decrease in production assets, ... -
Experimental study on thermal effects on well components
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)The main objective of inflow control devices is to maintain a uniform inflow by providing an additional pressure loss between the formation and the wellbore. ICDs delay the production of water or gas, and thus increase the ... -
Describing viscosity of IOR polymer solutions with differential non-Newtonian fluid models
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)The non-Newtonian viscosity of multiple of polymers was measured. For tests were taken polymers that are widely used in oil industry. They are: HEC; Xanthan gum; Polypack; Flopaam: 5115VHM, 5115VLM, AN 125VHM, AN 125VLM, ... -
Application of Multilateral Wells as an alternative solution for costs optimization
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Field completion techniques have progressed over the last twenty years. Today, different methods of well drilling can reduce total costs spent on single well construction. Multilateral wells is the primary example of ... -
Effect of crude oil adsorption and asphaltene precipitation on sandstone wettability
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Wettability is an important property for oil recovery. It affects capillary pressure and controls fluids, location, and flow in the reservoir. By an increase in capillary pressure (due to increased water wetness), previously ... -
A Three-Phase Model for Tumor Cell Migration
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Flow of interstitial fluid (IF) has proven to have a significant effect on the migration of cancer cells through tissue due to the tumor cells ability to sense flow by secreting chemokines that convect in the flow direction ... -
Investigation of Geomechanical Effects and Other Controlling Parameters on Shale Gas Production
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)Shale gas reservoirs are mainly characterized by their low matrix permeability, ranging from sub-nanodarcies to tens of microdarcies, which makes the economic production of these reservoirs rare without needing artificial ...