Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 20126-20145 of 23200
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Submerged Towing and Upending of TLP Thethers - Numerical Simulations and Assessment of Operational Limits
(Master thesis, 2016)In the event of transport, installation and operation of subsea oil and gas factories, marine operations are often a huge part of the total capital expenditure. As a result of this, oil and gas companies are looking for ... -
Subsalt imaging: Sensitivity to the velocity model
(Master thesis, 2011)Subsalt exploration is an area of increasing interest, but imaging under salt structures is still very challenging and an increased understanding of subsalt imaging is needed. The focus of this master’s thesis is on the ... -
Subsea Cable Tracking using Sensor Fusion on an Autonomous Underwater Vehicle
(Master thesis, 2017)Surveys of underwater power cables by Remotely Operated Vehicles (ROVs) are time demanding and expensive. We want to examine the possibility of using an Autonomous Underwater Vehicle (AUV) with magnetometers for estimating ... -
Subsea Chemical Storage and Injection Station - Single line batch re-supply of chemicals - An experimental investigation into displacement mechanisms and separation methods
(Master thesis, 2018)This thesis seeks to simplify the re-supply process of a subsea chemical storage and injection (SCS\&I) station by identifying possible alternative transport solutions. Specifically, this thesis explores the technical ... -
Subsea Chemical Storage and Injection Station - Single Line Batch Re-Supply of Chemicals - Operation Strategies and System Design
(Master thesis, 2018)The offshore industry is facing many challenges when it comes to maintaining operational efficiency. One of the biggest problems is related to flow assurance problems. To avoid such issues, different chemicals are transported ... -
Subsea CO2 Injection with Direct Offshore Offloading of CO2 – Modelling and Simulation Case Studies
(Master thesis, 2023)Abstract In the coming decades, burning fossil fuels will still be necessary, therefore Carbon Capturing and Storage (CCS) can aid in reducing greenhouse gas emissions. There are multiple technologies that can capture CO2 ... -
Subsea Compact Separation and Wet Gas Compression: Modelling, Estimation and Control
(Doctoral theses at NTNU;2019:61, Doctoral thesis, 2019) -
Subsea Compressor Transients
(Master thesis, 2020)Mange av de lett tilgjengelige feltene på norsk sokkel er utforsket og nærmer seg slutten på sin levetid. Nye ideer med fokus på kosteffektivitet og miljø har ledet utviklingen mot undervannsteknologi, hvor våtgass ... -
Subsea Condition Monitoring
(Master thesis, 2015)Subsea developments have the later years been increasingly popular. Subsea developments pose some major challenges towards safety, operation and maintenance. The study is focused on how condition monitoring can be used ... -
Subsea Drilling and Well Construction Cost Model
(Master thesis, 2020)Avgjørelser tas gjennom hele livssyklusen til et felt, der den største muligheten til å påvirke kostnadene er i de tidligste fasene. Det er derfor viktig å ta nøyaktige beslutninger i planleggingsfasene av feltutvikling. ... -
Subsea Field Layout Optimization
(Doctoral theses at NTNU;2022:33, Doctoral thesis, 2022)This study focuses on building a systematic method for the subsea field layout optimization with the aim of minimizing the overall field development cost. The subsea field layout optimization is a very complex problem which ... -
Subsea field layout optimization (Part I) – directional well trajectory planning based on 3D Dubins Curve
(Peer reviewed; Journal article, 2022)Directional well trajectory planning, which includes the optimization of the drilling site location and the trajectory between the drilling site to the completion interval, plays an important role in reducing subsea field ... -
Subsea field layout optimization (part II)–the location-allocation problem of manifolds
(Peer reviewed; Journal article, 2022)The location-allocation problem of manifolds, which is a part of subsea field layout optimization, directly affects the flowline cost. This problem has always been studied as a mixed-integer nonlinear programming (MINLP) ... -
Subsea field layout optimization (part III) --- the location-allocation problem of drilling sites
(Peer reviewed; Journal article, 2022)This study proposes an efficient method to optimize the subsea field layout with the aim of minimizing the subsea field development cost, based on the two methods introduced in Part I and Part II for solving the well ... -
Subsea Gas Boosting Laboratory: Design and Construction
(Master thesis, 2016)Enhanced oil recovery has been a major focus area for the oil and gas industry over the past years. The need for more and better recovery methods has increased as many of the major oil and gas fields are entering the last ... -
Subsea High Integrity Pressure Protection System Design per IEC 61508
(Master thesis, 2015)High-integrity pressure protection system (HIPPS) is one of various implementation of safety instrumented system (SIS) utilized in oil and gas production and it is installed to perform its safety instrumented function (SIF) ... -
Subsea Hydraulic Leakage Detection and Diagnosis
(Master thesis, 2010)The motivation for this thesis is reduction of hydraulic emissions, minimizing of process emergency shutdowns, exploitation of intervention capacity, and reduction of costs. Today, monitoring of hydraulic leakages is scarce ... -
Subsea Oil Spill Risk Management Based on Sensor Networks
(Peer reviewed; Journal article, 2020)The use of Wireless Sensor Networks (WSNs) in support of Dynamic Risk Assessment regarding oil spills still lacks a proper integration. WSNs enable prompt responses to such emergencies through an appropriate inspection, ... -
Subsea power cable sheathing: an investigation of lead fatigue performance
(Peer reviewed; Journal article, 2020)The protection of subsea power cables against electrical failure is achieved by the use of a watertight layer. Due to its properties of chemical stability and ductility, lead has been the material of choice for this purpose ... -
SUBSEA RECEIVER STATION FOR COMMUNICATION WITH DOWN WELL SENSORS - Undervanns mottakerstasjon for kommunikasjon med brønnhull sensorer
(Master thesis, 2013)The scope of this project was to develop a purpose designed communication platform for subsea applications. The company Wireless Instrumentation Systems (WINS) AS has a pilot project with Statoil ASA on the production ...