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Browsing NTNU Open by Author "Stanko, Milan"

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Now showing items 1-20 of 38

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    • Analysis of selected Multiphase metering concepts 

      Mwalyepelo, Juliana Yotham (Master thesis, 2015)
      This thesis work aimed at evaluating existing choke models that are used in oil and gas industry and thereafter to develop a new choke model for predicting mass flow rate through restrictions. Evaluation of the existing ...
    • Automated Decision Support Methodologies for Field Development: The Safari Field Case 

      Angga, I Gusti Agung Gede (Master thesis, 2019)
      In planning a field development, there are many field design features to be decided upon. The company's development team has a responsibility to determine a configuration of those options which maximizes the value of the ...
    • Compact Separation - Concept Study - Experimental and Simulation Study of Oil-Water Multiphase Flow in Helically Coiled Pipe 

      Hjertholm, Erik; Kulseth, Henrik Nikolai (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. ...
    • Controller Design and Control Structure Analysis for a Novel Oil–Water Multi-Pipe Separator 

      Ohrem, Sveinung Johan; Skjefstad, Håvard Slettahjell; Stanko, Milan; Holden, Christian (Journal article; Peer reviewed, 2019)
      To enable more efficient production of hydrocarbons on the seabed in waters where traditional separator equipment is infeasible, the offshore oil and gas industry is leaning towards more compact separation equipment. A ...
    • Coupled reservoir-network simulations with ESP's and multiphase pump built in 

      Akhmetova, Alua (Master thesis, 2016)
      The present project is focused on evaluating dual boosting (production with seabed boosting and electric submersible pumps, ESPs, simultaneously) as an alternative to improve total oil production rate of subsea fields. ...
    • Decision support method for early-phase design of offshore hydrocarbon fields using model-based optimization 

      Gonzalez Rengifo, Diana Carolina; Stanko, Milan; Hoffmann, Arnaud (Journal article; Peer reviewed, 2019)
      This paper presents the development of a method to provide decision support in the feasibility studies and concept planning phases of oil and gas field development. The objective in developing the methodology was to provide ...
    • Development and Assessment of a Multi-Pipe Oil-Water Bulk Separator Concept for Subsea Applications 

      Skjefstad, Håvard Slettahjell (Doctoral theses at NTNU;2019:306, Doctoral thesis, 2019)
      Subsea produced water separation has emerged as a viable technology for tackling challenges arising from increased water production rates. Removing produced water at the seabed will free up topside capacity constrained ...
    • Droplets Analysis and Model Development for Oil-water Pipe Flow Experiments 

      Kivuyo, Rehema (Master thesis, 2019)
      Among other things one of the major challenges in production of crude oil is the associated water that tugs along with oil. The results of the simultaneous production of oil and water is the formation of different flow ...
    • The effect of upstream inlet choking and surfactant addition on the performance of a novel parallel pipe oil-water separator 

      Skjefstad, Håvard Slettahjell; Dudek, Marcin; Øye, Gisle; Stanko, Milan (Peer reviewed; Journal article, 2020)
      This paper reports the effect of inlet choking and addition of surfactant on the performance of a parallel pipe oil-water separator. These two issues can have a strong effect on oil-water separation in real hydrocarbon ...
    • Evaluation of Models to Predict Liquid Loading in Gas Wells 

      Enos, Masolwa Kasongi (Master thesis, 2018)
      Liquid production in the form of water or condensate is essentially the most common problem in mature gas wells. For efficient operation of the well, the produced liquid must be continuously transported to the surface. ...
    • Evaluation of Production Enhancement Alternatives for the Morvin Field 

      Miranda Costa, Talita (Master thesis, 2016)
      Fields producing by pure depletion face challenges due to the low reservoir pressure after some years of production. This pressure is insufficient for fluid to flow at a desired rate from the reservoir up to the surface ...
    • Experimental and Numerical Study of Fluid Displacement in Subsea Pipe Sections 

      Folde, Hanne Gjerstad (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 

      Ellertsen, Ellen Kristine Knudsen (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 ...
    • Experimental study of oil-water separation techniques 

      Hestdahl, Espen Olaf (Master thesis, 2017)
      As hydrocarbon reservoirs mature they will increase their production of water, also operators are moving to deeper waters and marginal fields. As a result, the costs of processing and handling increases. Compact subsea ...
    • Experiments and Numeric Simulation on Displacement and Flushing of Hydrocarbon Fluid in Subsea Systems 

      Opstvedt, Jon Arne Karstad (Master thesis, 2016)
      With the increasing number of subsea developments in the oil and gas industry, there is a need for more, and reliable, information on how to conduct safe and well informed subsea operations. One of the hot topics today is ...
    • Feasibility study on Subsea Power Generation from Wellstream Heat using a Binary Organic Rankine Cycle 

      Gleditsch, Roger Jakobsen (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 ...
    • Field Development Study of an Offshore Gas Asset in Tanzania using Reservoir and Surface Network Simulations - Case Study: Block 2 Offshore Tanzania 

      Kiyuga, Nyorobi Busanda (Master thesis, 2016)
      This thesis focused on performing more field development studies for the Block 2 through integration of reservoir and surface network models. The study was not limited to Statoil proposed strategy; Tangawizi reservoir was ...
    • Further development of a Network Solver with gas lift optimization 

      Flatebakken, Vemund (Master thesis, 2017)
      The present Master's Thesis describes a further development of a Network Solver that checks if a certain oil rate is feasible for a given reservoir pressure. Reservoir pressure and surface formation rates are the inputs ...
    • Improving Performance on Gazela Field Fox Jacket Wells - Analysis of the Injectors and Producers Wells 

      Da-Cunha-Andre, Genilson Filipe (Master thesis, 2015)
      The following report analysing one of the jacket in Gazela field is located offshore of Cabinda province, that has combination of 8 produceres wells and 4 injectors wells. To achieve it production and injection data ...
    • A material balance model based on mass conservation in the producing layer and gas and water injection in non-communicating gas-cap and aquifer layers 

      Stanko, Milan (Peer reviewed; Journal article, 2021)
      In this work a material balance model has been developed, expanding the previous work of Borthne (1986), based on: the modified black-oil model, mass-conservation in the producing layer, gas and water injection in ...

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