Blar i Institutt for geovitenskap og petroleum på tittel
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COLD FLOW IN LONG-DISTANCE SUBSEA PIPELINES
(Master thesis, 2013)As the world?s appetite for energy continues to grow, oil and gas developments are moving to ever deeper subsea environments, thereby causing hydrates-related issues to become a growing concern for the industry. Hydrates ... -
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 ... -
Collaborative optimization by shared objective function data
(Peer reviewed; Journal article, 2022)This article presents a collaborative algorithmic framework that is effective for solving a multi-task optimization scenario where the evaluation of their objectives consists of two parts: The first part involves a common ... -
Collapse prediction of pipe subjected to combined loads
(Peer reviewed; Journal article, 2020)Prediction of tubular performance has over the last decades improved with models that are more accurate. There is a trend in the oil and gas industry where traditional uniaxial modelling is given less importance and the ... -
Combined geophysical and rock physics workflow for quantitative CO2 monitoring
(Peer reviewed; Journal article, 2021)Safe CO2 storage requires conformance verification, i.e. confirmation that the pressure and CO2 accumulation are consistent with modelling forecasts within a given uncertainty range. Quantitative estimates of relevant ... -
Combined Inversion of PP and PS Seismic Data for Static and Dynamic Reservoir Characterization
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:85, Doctoral thesis, 2005)Reservoir properties are mainly determined based on well log information. However, wells in most reservoirs are sparse and widely spread compared to the size of the reservoir. Seismic data is thus one of the most important ... -
Combining terrestrial and marine glacial archives: A geomorphological map of the Nordenskiöldbreen forefield, Svalbard
(Master thesis, 2016)Recent research suggests that Svalbard glaciers have retreated and thinned since the Little Ice Age. The analysis of glacial landforms and sediment deposits in the terrestrial and marine environments permits the reconstruction ... -
Compact Formulations for Efficient Early-Phase Field Development Optimization of Multi-Reservoir Fields
(Peer reviewed; Journal article, 2021)A compact formulation has been developed to efficiently optimize early-stage field development planning of multi-reservoir fields. The proposed formulation is a mixed-integer linear programming model which employs ... -
Compact Separation - Concept Study - Experimental and Simulation Study of Oil-Water Multiphase Flow in Helically Coiled Pipe
(Master thesis, 2016)This master thesis is written as part of a SUBPRO project whose long term goal is to identify multiphase flow separation performance of a helically coiled pipe and determine if it s viable for further industrial development. ... -
Comparaison mellom Matlab og @ RISK som verktøy for risikoanalyse
(Master thesis, 2014)Study of the Risk Analysis of a given oil well using two computer programs: @RISK and Matlab. Comparaison of both analysis in order to determine the efficiency of both programs to evaluate risk in the oil and gas industry. -
A Comparative Simulation Study of WAG and Surfactant EOR Methods Applied to Norne field E Segment
(Master thesis, 2017)The production of oil by primary and secondary recovery methods can only recover up to 35% of originally oil in place, that means 65% of oil remains trapped in the reservoir, therefore there is the need to research for ... -
Comparative Study of Hydrogen Reduction of Bauxite Residue-Calcium Sintered and Self-Hardened Pellets Followed by Magnetic Separation for Iron Recovery
(Journal article; Peer reviewed, 2023)To minimize the carbon footprint in the industrial valourization of bauxite residue, hydrogen was used as a reducing agent. The current study experimentally investigated hydrogen reduction of bauxite residue-CaO sintered ... -
A comparative study of performance prediction models used in hard rock tunneling - A case study from the new Ulriken tunnel
(Master thesis, 2018)Full face boring became a popular way of excavation in Norway at the beginning of the 70`s to the beginning of the 90`s. The excavation method was mainly used in hydro power- and sewage projects, due to the given profile. ... -
Comparing mechanical and ultrasonic behaviour of a brittle and a ductile shale: Relevance to prediction of borehole stability and verification of shale barriers
(Peer reviewed; Journal article, 2019)Borehole collapse during drilling operations in shale formations is a well-known and costly problem within the petroleum industry. Recently it has become evident that shales may also form sealing barriers around the casing, ... -
Comparing Ray Trace and Fk-Modeling of the Refracted Wave Associated with Normal Mode
(Master thesis, 2011)An acoustic wave traveling through the water layer will, upon hitting the seafloor at the critical angle, generate a head wave traveling in the upper part of thesubsurface. While some of the energy is converted to this ... -
Comparison of drilling fluids (all types of drilling fluid like WBM, OBM and SBM) using in geothermal wells versus oil and gas HPHT wells (similarities and differences) during design, during operation and during connection. The comparison should take into consideration of the reason of using the mud in each category (wellbore stability, formation damage, pressure and temperature compatibility and tolerance, inhibitor compatibility, mud rheology, and etc.)
(Master thesis, 2022)Denne masteroppgaverapporten er skrevet med utgangspunkt i masterspesialiseringsprosjektet TPG4560. Noen av de teoretiske delene ble hentet fra fordypningsprosjektet og referansene ble lagt til de brukte delene. For å nå ... -
Comparison of continuous and discontinuous modelling for computational rock mechanics
(Dr. ingeniøravhandling, 0809-103X; 2002:149, Doctoral thesis, 2003)Computational rock mechanics becomes more and more popular. New programs are constantly under development, and the modelling process has become a natural part of the planning process for many caverns and tunnels, as well ... -
Comparison of Dry Gas Seasonal Storage with CO2 Storage and Re-Use Potential
(Master thesis, 2013)To make large-scale CO2 storage economic, many groups have proposed using CO2in EOR projects to create value for CO2 storage. However, CO2 EOR projectsgenerally require a large and variable supply of CO2 and consequently ... -
Comparison of existing performance prediction models for hard rock tunnel boring based on data collected at the Follo Line Project
(Master thesis, 2018)In Norwegian hard rock tunnelling history, drill and blast has mainly been the excavation method. At the Follo Line Project, which will be the longest railway tunnel in Scandinavia when it opens in 2021, tunnel boring ... -
Comparison of Gas Reservoir Performance from Simulation and General Material Balance
(Master thesis, 2014)The study of comparing gas reservoir performance using two different methods, namely numerical simulation and general material balance was conducted. The Songo Songo dry gas field in Tanzania was used for this study. The ...