Blar i Institutt for geovitenskap og petroleum på emneord "Petroleumsfag, Boreteknologi"
Viser treff 21-40 av 72
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Design and Optimization of a Miniature Autonomous Drilling Rig - Contribution to the Drillbotics Competition 2018
(Master thesis, 2018)Drillbotics is an international drilling competition hosted by DSATS for the fourth consecutive year, arranged to accelerate advancement in drilling automation. NTNU was one of nine universities that based on a design ... -
Design and Optimization of a Miniature Autonomous Drilling Rig - Contribution to the Drillbotics Competition 2018
(Master thesis, 2018)Drillbotics is an international drilling competition hosted by DSATS for the fourth consecutive year, arranged to accelerate advancement in drilling automation. NTNU was one of nine universities that based on a design ... -
Design and Optimization of a Miniature Autonomous Drilling Rig - Contribution to the Drillbotics Competition 2018
(Master thesis, 2018)Drillbotics is an international drilling competition hosted by DSATS for the fourth consecutive year, arranged to accelerate advancement in drilling automation. NTNU was one of nine universities that based on a design ... -
Detection of Bit Wear in Sandstone and Conglomerate - Analysis of Drilling Data and Formation Characteristics
(Master thesis, 2016)When drilling in challenging formations the drill bit experiences wear to some extent, which may lead to a reduced rate of penetration. Since the drilling costs are so high, it is desirable to be able to detect bit wear ... -
Detection of Conglomerate Formations While Drilling
(Master thesis, 2015)The high drilling cost of today s oil and gas industry makes drilling optimization highly desirable. Lost time during drilling caused by unforeseen challenges is common, and increases well cost. The elimination of such ... -
Detection of Microannulus by the use of Acoustic Measurements
(Master thesis, 2016)Well integrity is crucial to ensure safe operations over the lifecycle of a well. Poor cement bonding between casing and cement is a common problem, yet crucial for the wells integrity. If neglected, it could function as ... -
Downhole Mechanical Isolation Equipment - Analysis of retrieval operations
(Master thesis, 2015)To encounter challenges when retrieving downhole mechanical isolation (DMI) equipment like plugs, junk baskets and prongs, using well intervention techniques, are not uncommon. These deviations result in additional runs, ... -
Drilling equipment erosion
(Master thesis, 2018)Erosion is a major problem in the oil and gas industry. The primary focus within the industry has been within oil and gas production as erosion is a limiting factor for production rates, and therefore heavily economically ... -
Drilling Fluid Volume Change due to Hydrate Formation and its Impact on Well Control
(Master thesis, 2017)Natural gas hydrates are crystal structures of water containing gas inside cavities. Hydrates can form if gas and water are present in a system with high pressure and low temperature conditions. Hydrate formation is ... -
Drilling in geomechanically stressed formations over and adjacent to salt domes.
(Master thesis, 2015)This thesis is in two parts: The first part is a literature study with the intent of identifying the general behavior of stress perturbations related to some standard, often seen, salt geometries. The second part is an ... -
Drillstring Dynamics - Comparative analysis between a lumped element model s ability to recreate axial vibrations observed from measurements of dynamic strain using small-scale drillstring model
(Master thesis, 2016)Lumped element models are desirable for their mathematical simplicity and their practical application for simulating axial vibrations. These models however only approximate the dynamic behavior, and is why real time ... -
Elastic to Non-Elastic Rock Deformation Studied by Combination of Static and Dynamic Measurements - Investigating the Behaviour of the Non-Elastic Response
(Master thesis, 2016)Tidligere studier gjort på ren sandstein under reduksjon av spenning fra et vendepunkt, viser en lineær tendens for den ikke-elastiske inverse stivheten. Ved å anvende denne lineære oppførselen til steinen kan man ekstrapolere ... -
Evaluation and Testing of Thermoset Polymer Resin for Remedial Repair of Sustained Casing Pressure
(Master thesis, 2017)The number of petroleum wells exhibiting pressure build-up in the annulus as a result of lost cement integrity is evident, this is known as Sustained Casing Pressure (SCP). There are several factors contributing to lost ... -
Evaluation of Industry Practice for Buckling Analysis in Well Design
(Master thesis, 2018)The development of horizontal drilling technology have enabled the production of oil and gas from thin layers. With the development of shallow, horizontal subsea wells, new challenges arises. The occurrence of compressive ... -
Evaluation of Methods and Quality Barriers in Plug and Abandonment - Technology Advances, Physical and Governing Requirements
(Master thesis, 2017)Improving the present P&A operation with respect to costs and safety is of current interest to the petroleum industry. This is because this operation will frequently be performed in the future due to the large number of ... -
Evaluation of Rheology and Pressure Losses for Oil-based Drilling Fluids in a Simulated Drilling Process
(Master thesis, 2015)The advancements in the field of hydraulics have indicated that eccentricity in the well greatly reduces the pressure losses. This knowledge has been readily adopted in the industry practice, but the theoretical approximations ... -
Evaluation of Shale Formations as Barrier Element for Permanent Plug and Abandonment of Wells
(Master thesis, 2013)In a similar fashion to the commonly used saying ?that the only thing certain in life is death?, the only thing certain for petroleum wells is that sooner or later the wells will have to be permanently plugged and abandoned. ... -
Experimental Measurements of the Capillary Entry Pressure of Outcrop and Field Shale
(Master thesis, 2015)The oil industry often faces borehole stability issues when drilling through shale, especially shale that is water-wet. It is often observed that drilling with oil-based mud yields the best results due to the capillary ... -
Experimental Study of Direct Tensile Strength in Sedimentary Rocks
(Master thesis, 2016)Tensile strength is an important parameter in rock mechanics and is amongst other things used as a criterion for initiation and propagation of fractures in hydraulic fracture modeling. The tensile strengths are determined ... -
Experimental Study of Fracture Toughness in Sedimentary Rocks
(Master thesis, 2016)This master thesis details the determination of mode I (tensile) fracture toughness, KIC, using the International Society of Rock Mechanics (ISRM) Chevron Bend (CB) method on three sedimentary rock types. Fracture toughness ...