Blar i Studentoppgaver (TN-IKM / TN-IMBM) på emneord "undervannsteknologi"

Viser treff 121-140 av 193

    • Model for economical analysis of oil and gas deepwater production concepts : Comparisons of life cycle cost of subsea production systems vs. floating structures with dry wellheads. 

      Romero Mata, Omar (Masteroppgave/UIS-TN-IKM/2010;, Master thesis, 2010)
      The scope of the work was to create a model that will allow the comparison of Life Cycle Costs (LCC) for subsea production systems and floating structures with dry wellheads for the Mexican territorial waters of the Gulf ...

    • Modelling safety critical BOP closing times for arbitrary BOP control systems 

      Haga, Øystein Angelskår (Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)
      There are presently no recommended practises, defined by standards, for closing time calculation of Blow Out Preventers (BOPs), when designing BOP control systems. As the closing time is a safety critical design parameter ...

    • Modification of cementing tool with respect to collapse pressure rating 

      Morken, Hanne Lohne (Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2014)
      The intention for this project was to increase the collapse pressure rating for the C-Flex SS 9 5/8” by modifying the design. This project started by evaluating the existing design. This was done before the modification ...

    • Modification of clump weigth 

      Kolbeinsen, Jarle (Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)
      The dive support vessel Seven Havila is a new and top modern vessel with the most advanced dive system in the world. In 2011 she was awarded with the prestigious title “Support Vessel of the Year”. But modern design has ...

    • Modification of suction kit 

      Bruset, Simon (Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)
      This thesis is about the modification of an ROV mounted Suction Kit; a reversible centrifugal pump designed and manufactured by Oceaneering AS. The Kit mainly contains a centrifugal pump driven by a hydraulic pump motor ...

    • Moonpool operations on Havila Subsea - improvement study 

      Erlend, Revheim (Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)
      Increasing challenges with regards to remote fields, reservoir conditions and deep water, forces the petroleum industry to adopt new technology. A large part of this technology comes in the form of subsea equipment. ...

    • Mooring Analysis of a Closed Fish Cage 

      Andresen, Jørgen (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-13)
      As of today, Norway is the second largest seafood exporter in the world after China, and Norwegian seafood is currently exported to more than 130 countries (Laksefakta, n.d.). In conjunction with the present growth of the ...

    • New jack-up concept for Arctic conditions 

      Urycheva, Maria (Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)
      Arctic exploration is one of the main trends in today’s oil and gas industry. In shallow waters jack-up mobile drilling units are often used for drilling outside the ice season. The operating period of the jack-ups is ...

    • Numerical analysis of interference between an otter trawl board and a pipe-in-pipe system 

      Muruganandam, Thamilinian Kannamanaickanur (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-29)
      Subsea pipelines are likely to be exposed to fishing activity, which may results in trawl gear interacting with a pipeline. The interaction is classified into impact, pull-over and a special case called hooking. The trawl ...

    • Numerical Investigation on the Vortex-Induced Vibration Effects of a Deep Sea Mining Riser 

      Joseph, Rohan Shabu (Masteroppgave/UIS-TN-IKM/2017;, Master thesis, 2017-06-14)
      In recent times, the deep sea mining industry has attracted growing attention globally as it targets mining activities in deeper waters of up to 6,000 m depth. Many of the technologies used in deep sea mining have been ...

    • Numerical Simulation of Flow Around Subsea Covers at high Reynolds Numbers 

      Andersen, Martin (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)
      The present study investigates turbulent flow over square and trapezoidal wall-mounted subsea covers in single and tandem configuration. The structures under investigation in the single configuration are subjected to a ...

    • Numerical Simulation of Flow around Subsea Covers at High Reynolds Numbers 

      Zhang, Yanni (Masteroppgave/UIS-TN-IKBM/2019;, Master thesis, 2020-01-15)
      Glass Reinforced Plastic (GRP) covers are widely used to protect the subsea equipment from external damage. In this work, numerical simulations of a fully developed turbulent boundary layer flow over square and trapezoidal ...

    • Numerical simulation of ice sheet – FPSO interaction 

      Kutushev, Vadim A. (Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013-06)
      The present thesis is devoted to investigation of FPSO interaction with level ice. The interaction with level ice is only addressed, disregarding other ice features. The scope of the thesis focuses upon two major problems: ...

    • Numerical Simulation of VIV of Risers with Staggered Buoyancy Elements 

      Lekkala, Malakonda Reddy (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-15)
      Steel Lazy Wave Riser (SLWR) is an attractive deep water riser system design, which allows the platform motion to be decoupled from the touchdown point (TDP) of the riser. When subjected to external flow, both buoyancy ...

    • Numerical Simulations of Flow Over Bottom-Mounted Structures at High Reynolds Number 

      Serta Fraga, Vinicius (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2019-06)
      A common challenge in on-bottom stability design is to select accurate hydrodynamic quantities, such as drag and lift coefficients, to compute the forces on structures subject to fluid flow. The objective of the present ...

    • Numerical Simulations of Near-Wall Vortex-Induced Vibrations of two Circular Cylinders in Tandem 

      Eie, Kjartan (Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)
      Free-spanning subsea pipelines may experience vortex-induced vibrations (VIV) when exposed to fluid flow. These resonant motions can cause fatigue-related problems and in some cases failure of the pipe. A common configuration ...

    • Numerical Study on Offshore Lifting Operations of a Subsea Spool 

      Parra, Carlos Andres (Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)
      Within the scope of marine operations, offshore lifting operations present significant challenges due to the instability and harshness of environmental conditions. Therefore, lifting operations become expensive and risky. ...

    • Numerical study on thermal effects in an electric subsea robotic actuator 

      Fjetland, Kotryna Bedrovaite (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-07-07)
      A remotely operated vehicle (ROV) is equipped with two robotic manipulators. Current manipulators are hydraulically actuated. The industry has uncovered the potential in replacing hydraulic-based technology with its ...

    • Offshore ice-resistant gravity based terminal for the cluster development of the Pechora Sea 

      Efimkin, Ilya (Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-12)
      The Arctic shelf of Russia is an area of great interests. The process of hydrocarbons offloading is the most significant challenge for the Arctic projects, mostly because of the harsh environmental conditions and lack of ...

    • Oil offloading solutions for the Pechora sea exemplified by the Prirazlomnoye field 

      Subbotin, Evgeny (Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)
      There are many prospective areas to develop in Arctic and every considered project is unique. Solutions for one oil or gas field might not be appropriate for another. Especially in terms of development of oil and gas fields ...