Browsing NTNU Open by Author "Sangesland, Sigbjørn"
Now showing items 21-40 of 142
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Analysis of Well Design for Effective P&A of Production Wells
Bugge-Mahrt, Jørgen Haakon Juan Antoni (Master thesis, 2012)Plugging and Abandonment (P&A) has long been given little im- portance in the oil industry as the activity does not generate values, and preparing for it to be efficiently carried out was overshadowed by the interest of ... -
An Analysis on Drillstring Vibration - A novel approach to detecting Forward Synchronous Whirl
Saraswat, Aditya (Master thesis, 2016)Operators acknowledge the value of investment in controlling drilling dynamics. Decrease in crude oil prices limits the investment on measurement tool competences. Thus, it is necessary to address the drilling dynamics ... -
Application of 3-D Analytical Model for Wellbore Friction Calculation in Actual wells
Ismayilov, Orkhan (Master thesis, 2012)With the increasing number of drilled ultra-extended reach wells and complex geometry wells, the drilling limitation caused by excessive torque and drag forces must be further investigated. The wellbore friction being a ... -
Application of Distributed Acoustic Sensing to Flow Regime Classification
Silkina, Tatiana (Master thesis, 2014)The objective of the thesis proposed is to investigate the potential of DAS(Distributed Acoustic Sensing) for flow regime classification. A relativelysimple and cost effective experiment has been conducted in this study.Using ... -
Assessment of Ultrasonic Assisted Drilling
Vedvik, Noralf (Master thesis, 2015) -
AUTOMATED PATTERN RECOGNITION IN REAL-TIME DRILLING DATA FOR EARLY KARST DETECTION
Maksimov, Danil; Løken, Marius Alexander; Pavlov, Alexey; Sangesland, Sigbjørn (Chapter, 2021)Drilling in carbonate formations often poses a real challenge to operators, contractors and service companies. Severe fluid losses, gas kicks and other unwanted situations increase drilling risks. These risks are closely ... -
Blowout and Kill Simulator - Calibrated for Exploration Wells on the Norwegian Continental Shelf
Mathisen, Vetle Arild (Master thesis, 2020)Introduksjon En ukontrollert utblåsning er en alvorlig hendelse. Når en utblåsning oppstår, er det en stor risiko for det involverte riggpersonalet. Oljeutslippet fra en utblåsning er alvorlig for miljøet og krever mye ... -
Case Study - Business Mapping to Improve Quality of the Well Delivery Process
Jenssen, Jens Erich (Master thesis, 2012)The importance of building a robust oil and gas company is currently more relevant than ever. Volatile oil prices, challenging governmental relations and uncertain outcomes of exploration activities are all elements affecting ... -
Casing Wear: Analysis of Field Experience and Current Models
Kjellevoll, Ingrid Solberg (Master thesis, 2013)Accurate casing wear prediction is important for well integrity evaluations.Some advanced well constructions have the casing exposed to reservoir fluidsand these casings are often in chrome material for corrosion resistance. ... -
CDF study of two-phase flow in helico-axial pump stage
Mata García, Rodrigo (Master thesis, 2018)Pumping is an essential part of the process of several industries. Pumping and processing fluids with different properties have revealed to be among the major challenges in the last decades. In the oil and gas industry, ... -
Cement Plug Integrity for Well Abandonment
Corina, Anisa Noor (Doctoral theses at NTNU;2020:30, Doctoral thesis, 2020)Permanent abandonment marks the end of the life of an oil or gas well. Accordingly, the penetrated formation must be isolated, preventing fluid flow to the surface or surrounding formation, with a purpose to give long-term ... -
Collapse prediction of pipe subjected to combined loads
Brechan, Bjørn Astor; Teigland, Andreas; Dale, Stein Inge; Sangesland, Sigbjørn; Kornberg, Even (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 ... -
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. ... -
Concentric Coiled Tubing Drilling System
Sandven, Håkon (Master thesis, 2015)A concept review of concentric coiled tubing drilling (CTD) system is performed in this Master thesis, hereafter named DualCTD. The main purpose is to investigate and present the advantages, limitations and applications ... -
Design and Implementation of a Minitature Rig for Autonomous and Directional Drilling
Hånsnar, Gaute; Gjersdal, Benedicte; Skretting, Trygve Mikal Viga (Master thesis, 2021)Denne avhandlingen presenterer arbeidet gjort av tre petroleumsstudenter og en kybernetikkstudent for å representere Norges Teknisk Naturvitenskapelig Universitet (NTNU) i den internasjonale borekonkurransen "Drillbotics". ... -
Design and Implementation of a Minitature Rig for Autonomous and Directional Drilling
Hånsnar, Gaute; Skretting, Trygve Mikal Viga; Gjersdal, Benedicte (Master thesis, 2021)Denne avhandlingen presenterer arbeidet gjort av tre petroleumsstudenter og en kybernetikkstudent for å representere Norges Teknisk Naturvitenskapelig Universitet (NTNU) i den internasjonale borekonkurransen "Drillbotics". ... -
Design and Implementation of a Minitature Rig for Autonomous and Directional Drilling
Hånsnar, Gaute; Gjersdal, Benedicte; Skretting, Trygve Mikal Viga (Master thesis, 2021)Denne avhandlingen presenterer arbeidet gjort av tre petroleumsstudenter og en kybernetikkstudent for å representere Norges Teknisk Naturvitenskapelig Universitet (NTNU) i den internasjonale borekonkurransen "Drillbotics". ... -
Design and Implementation of an Autonomous Miniature Drilling Rig for Directional Drilling
Azam, Muhammad Umer (Master thesis, 2019)Denne rapporten viser arbeidet gjort av NTNU-laget under andre fase av Drillbotics. Drillbotics er ein internasjonal borekonkurranse som blir arrangert av DSATS for femte år på rad i 2019, der universitetsstudentar vert ... -
Design of Downhole Pressure Isolation Device
Dashtpour, Reza (Master thesis, 2013)In the petroleum industry, growing number of projects that involve harsh downhole conditions in one hand and increasing restrictions and safety requirements in other hand, have been the key driving factors for improving ... -
Design, Implementation and Optimization of an Autonomous Miniature Rig for Directional Drilling
Helgeland, Henrik; Solberg, Mikaela; Alvarez, Luis (Master thesis, 2022)Digitale løsninger og automatiserte prosesser revolusjonerer mange sektorer, inkludert olje- og gassindustrien. Siden 2016 har DSATS og SPE arrangert Drillbotics konkurransen for å engasjere studenter til å løse utfordringer ...