Blar i Institutt for geovitenskap og petroleum på tittel
Viser treff 1316-1335 av 2529
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Laboratory Evaluation of Static and Dynamic Sag in Oil-Based Drilling Fluids
(Journal article; Peer reviewed, 2020)In this paper, we present the results of barite sag measurements before and after hot-rolled oil-based drilling fluids (OBDFs) using different approaches for characterization. We characterized the barite sag of a liquid ... -
Laboratory Investigation of Low Salinity Waterflooding as a Tertiary Recovery Process: Effect of Crude Oil Composition
(Master thesis, 2011)Low salinity water flooding has been established in relevant literature as a promising method for enhanced oil recovery. The presence of polar components within the oil has been established as a necessity for any effect ... -
Laboratory investigation on salt migration and its effect on the geotechnical strength parameters in quick clay mini-block samples from Dragvoll
(Master thesis, 2014)Investigations of the effect of salt diffusion as ground improvement of quick clay is importantto provide a clear understanding of the method, to be able validate the potential of commercialuse. Previous extensive ... -
Laboratory Measurements of Strength Parameters for Fracturing
(Chapter, 2017)Fracture toughness and tensile strength are rock parameters that have influence on hydraulic fracture initiation and propagation, and that to various degrees are implemented in fracture modeling tools. Laboratory measurements ... -
Laboratory study of plugging mechanism and seal integrity in fractured formations using a new blend of lost circulation materials
(Peer reviewed; Journal article, 2023)The problem of lost circulation occurred long during the drilling operation. Through induced and natural fractures, huge drilling fluid losses lead to higher operating expenses during the drilling. Historically, this problem ... -
Laboratory Testing of Online Extraction of Organic Contaminants from Water - Optimization of Online Extraction Concept
(Master thesis, 2016)Real-time monitoring of the freely dissolved concentrations of PAHs in the aquatic environment is important in order to limit adverse effects on aquatic organisms. It is the freely dissolved fraction of the total concentration ... -
Laboratory Testing to Study Initiation and Evolution of Shale Barriers
(Master thesis, 2016)Clay and shale formations occur naturally with sealing properties, and are therefore investigated as possible annular barriers. The properties of these argillaceous rocks are not fully understood with regards to creep of ... -
Laboratory tests and numerical modeling of block models for evaluation of rock mass behaviour when subject to an anchoring load
(Master thesis, 2021)Bergankere består av lastbærende komponenter, oftest stag eller kabler, og benyttes til å forankre konstruksjoner eller til å forsterke grunnen, eksempelvis til forankring av demning og brofundamenter samt forsterkning av ... -
Ladningsberegning basert på frekvensveide vibrasjonskrav
(Master thesis, 2013)Den Norske Standarden, NS8141-01:2012 Vibrasjoner og støt ? Veiledende grenseverdier for bygge- og anleggsvirksomheten, bergverk og trafikk, har nylig gjennomgått en større revisjon hvor de veiledende grenseverdiene for ... -
Lamellar magnetism and exchange bias in billion-year-old metamorphic titanohematite with nanoscale ilmenite exsolution lamellae-III. Atomic-magnetic basis for experimental results
(Peer reviewed; Journal article, 2021)Lamellar magnetism is a source of remanent magnetization in natural rocks different from common bulk magnetic moments in ferrimagnetic minerals. It has been found to be a source for a wide class of magnetic anomalies with ... -
A Landform Evolution Model for the Mannen Area in Romsdal Valley, Norway
(Chapter, 2020)The Quaternary geology of western Norway’s landscape is the result of glacial and post-glacial sedimentation and erosional processes, a significant sea-level drop and high rock-slope failure activity. All these processes ... -
Large-scale CO2 Injection Analysis: understanding pressure variation in multiple compartments using analytical and computational analysis approaches
(Master thesis, 2022)Injecting carbon dioxide into deep saline aquifers and then storing it by physically and chemically trapping, is one viable strategy for reducing greenhouse gas emissions and mitigating global warming. To ensure the security ... -
Large-Scale Underground Mining in Tromsdalen: With focus on dimensioning and design of stopes and pillars
(Master thesis, 2014)The objective of this thesis is to estimate the stope dimensions for a future underground mine in Tromsdalen, Verdal. Additionally, the most favourable orientation of the stopes and possible stope layouts will be assessed. ... -
Large-size aggregates for road construction – a review of standard specifications and test methods
(Peer reviewed; Journal article, 2019)Construction aggregates are essential structural components in road structures, whether in unbound form or combined with cement or bitumen. Specifications and test methods for aggregates are standardised, but current ... -
Large-sized Ichthyosaurs from the Lower Saurian Bone Bed (Early Triassic) of the Vikinghøgda Fm., Marmierfjellet, Spitsbergen
(Master thesis, 2016)The remains of large-sized, derived ichthyosaurs are collected and described from the Lower Saurian bone bed of the Early Triassic Vendomdalen Member, Vikinghøgda Formation of Marmierfjellet, Spitsbergen, with an updated ... -
Late Neoproterozoic–Silurian tectonic evolution of the Rödingsfjället Nappe Complex, orogen-scale correlations and implications for the Scandian suture
(Peer reviewed; Journal article, 2021)The Scandinavian Caledonides consist of disparate nappes of Baltican and exotic heritage, thrust southeastwards onto Baltica during the Mid-Silurian Scandian continent–continent collision, with structurally higher nappes ... -
Late Paleozoic supradetachment basin configuration in the southwestern Barents Sea — Intrabasement seismic facies of the Fingerdjupet Subbasin
(Journal article; Peer reviewed, 2021) -
Late Triassic sedimentology and diagenesis of Barentsøya, Wilhelmøya and eastern Spitsbergen
(Master thesis, 2016)This study documents and discusses the sedimentology and diagenesis of the Triassic De Geerdalen Formation on eastern Svalbard. In addition to sandstone sampling, nine sedimentary sections have been measured. These include ... -
Late-magmatic immiscibility during batholith formation: assessment of B isotopes and trace elements in tourmaline from the Land’s End granite, SW England
(Peer reviewed; Journal article, 2015)Quartz–tourmaline orbicules are unevenly distributed in the roof segment of the Land's End granite, SW England. This study shows that the orbicules formed from an immiscible hydrous borosilicate melt produced during the ... -
Lattice Boltzmann Modeling of microfluidic two-phase flow with complex pore structure
(Master thesis, 2019)In the past, the technology to capture a high-resolution image was not mature enough to enable pore-scale modeling and simulation. Additionally, including sufficient pore geometry complexities leads to a heavy computational ...