Blar i Department of Energy and Petroleum Engineering (TN-IEP) på tittel
Viser treff 133-152 av 572
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Criterion for sufficiently large dither amplitude to mitigate non-linear glitches
(Chapter, 2023)A model describing glitch disturbances is introduced and analysed. The model is used to find the response of glitch disturbances when adding a periodic dither to the input and applying low-pass filtering to the output. ... -
A critical review on production, modification and utilization of biochar
(Peer reviewed; Journal article, 2021)There has been an increased interest in the production of sustainable biochar in the past years, as biochar shows versatile physicochemical properties and, can have a wide applicability in diverse fields. Comprehensive ... -
A Critical Review on the Use of Shallow Geothermal Energy Systems for Heating and Cooling Purposes
(Peer reviewed; Journal article, 2022)The reduction of CO2 emissions has become a global concern. In this regard, the EU intends to cut CO2 emissions by 55% by 2030 compared to those of 1990. The utilization of shallow geothermal energy (SGE) in EU countries ... -
Cuttings transport with oil- and water-based drilling fluids
(Chapter, 2021)Deviated well sections are common in modern well construction. In mature areas like the North Sea region, practically all producers or injector wells will have highly deviated sections. These wells must be drilled and ... -
Dashboard for visualization, evaluation and modeling of wellbore and field H2S production
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)For several years, continuously increasing amounts of hydrogen sulfide (H2S) are being produced from numerous fields on the Norwegian Continental Shelf as a result of reservoir souring. Reservoir souring – increasing ... -
DATA DRIVEN BHP PREDICTION DURING NORMAL DRILLING AND KICK
(Bachelor thesis, 2023)Accurate bottom hole pressure (BHP) prediction during drilling with and without kick play crucial roles in maintaining the safety and efficiency of drilling operations in the oil and gas industry. Traditional methods for ... -
Data Driven ROP Modeling - Analysis and Feasibility Study
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)Increasing the drilling speed in wells while maintaining the operational safety standards is a challenge that many Petroleum Engineers have undertaken. In recent years, high complexity wells (Horizontal, Extended Reach, ... -
Data-driven Approach for Kick Detection and Trend Analysis in Drilling Operations
(Bachelor thesis, 2023)In the rapidly evolving landscape of the oil and gas industry, maintaining operational safety and optimizing drilling efficiency in complex wells, such as horizontal, extended reach, and HPHT wells, have emerged as paramount ... -
Data-Driven Approaches Tests on A Laboratory Drilling System
(Peer reviewed; Journal article, 2020)In recent years, considerable resources have been invested to exploit vast amounts of data that get collected during exploration, drilling and production of oil and gas. Data-related digital technologies potentially become ... -
Data-driven sensitivity analysis of complex machine learning models: A case study of directional drilling
(Peer reviewed; Journal article, 2020-12)Classical sensitivity analysis of machine learning regression models is a topic sparse in literature. Most of data-driven models are complex black boxes with limited potential of extracting mathematical understanding of ... -
Day-ahead optimal scheduling of micro gas turbine-based microgrid considering electricity and heating energy
(Peer reviewed; Journal article, 2023)Microgrids are considered as the crucial element in the integration of various distributed energy resources in buildings. They are capable of operating in both grid-connected and islanded mode and have shown immense potential ... -
Decarbonization of the Iron and Steel Industry With Direct Reduction of Iron Ore with Green Hydrogen
(Peer reviewed; Journal article, 2020)Production of iron and steel releases seven percent of the global greenhouse gas (GHG) emissions. Incremental changes in present primary steel production technologies would not be sufficient to meet the emission reduction ... -
Decarbonizing primary steel production : Techno-economic assessment of a hydrogen based green steel production plant in Norway
(Peer reviewed; Journal article, 2022)High electricity cost is the biggest challenge faced by the steel industry in transitioning to hydrogen based steelmaking. A steel plant in Norway could have access to cheap, emission free electricity, high-quality iron ... -
Describing viscosity of IOR polymer solutions with differential non-Newtonian fluid models
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06)The non-Newtonian viscosity of multiple of polymers was measured. For tests were taken polymers that are widely used in oil industry. They are: HEC; Xanthan gum; Polypack; Flopaam: 5115VHM, 5115VLM, AN 125VHM, AN 125VLM, ... -
Design and Early Age Performance of Sustainable One-Part Geopolymers for Well Cementing
(Peer reviewed; Journal article, 2023-10)One-part geopolymers, known as “just add water” (JAW), alkali-activated formulation is presented in this work. This work reveals the design and development of short-term properties of JAW geopolymers for use in oilwell ... -
Design and Optimization of an Autonomous Laboratory-Scale Drilling Rig and Bit Design for Directional Drilling
(Masteroppgave/UIS-TN-IEP/2020;, Master thesis, 2020-07-15)This report documents the work that has gone into the design and optimization of a laboratory-scale drilling rig and bit design for the purpose of directional drilling and to participate in the Drillbotics competition. ... -
Design of Johan Sverdrup water injectors – unlocking the 9 5/8” liner cement job
(Masteroppgave/UIS-TN-IEP/2018;, Master thesis, 2018-06-14)For the injection wells on Johan Sverdrup, cementing operations concerning the 9 5/8’’ liners are extraordinarily critical. Complications like equipment malfunction, losses, and lost rotation, both during circulation and ... -
Determinants of oil and gas investments on the Norwegian Continental Shelf
(Journal article; Peer reviewed, 2018-02)This paper studies the investment decisions by oil and gas companies operating on the Norwegian Continental Shelf. We account for the heterogeneity across the fields by including field-specific variables, including geological ... -
Determination of steel/cement friction coefficient
(Master thesis, 2023)Two different experimental approaches have been used to determine the kinetic coefficient of friction between carbon steel and concrete made of API class G well cement mixture. First experimental setup consists of sliding ... -
Developing a methodology for generating an influx management envelope in MPD operations.
(Masteroppgave/UIS-TN-IEP/2019;, Master thesis, 2019-06-12)In addition to enhancing drilling efficiency and safety, Managed Pressure Drilling (MPD) offers the potential for vast improvements in the influx handling process. Some of today's MPD technologies are designed to detect ...