Browsing by Title
Now showing items 1-20 of 294
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2.5D Inversion and Joint Interpretation of CSEM Data at Sleipner CO2 Storage
(Peer reviewed; Journal article, 2017)In this paper, we revisit the marine controlled-source electromagnetic (CSEM) data, acquired above the Sleipner CO2 storage, in order to further study the dataset and conclude the feasibility of marine CSEM for offshore ... -
3D fault integrity screening for Smeaheia CO2 injection site
(Lecture, 2018) -
3D fault integrity screening for Smeaheia CO2 injection site
(Lecture, 2018)Task leader, Elin Skurtveit presents the GHGT paper "3D fault integrity screening for Smeaheia CO2 injection site" together with plans for future work. -
3D FE tool for time dependent settlement predictions
(Chapter, 2016)A newly developed calculation tool for fully coupled general 3D finite element consolidation analyses is presented. The development has been part of an ongoing Research and Development project called GeoFuture and the tool ... -
3D foundation model library
(NGI Rapport;20150014-11-R, Report, 2018-11-07)The REDWIN project (REDucing cost of offshore WINd by integrated structural and geotechnical design) is a 4-year research project, funded primarily by the Research Council of Norway (NFR) through the ENERGIX program, ... -
A Boussinesq type extension of the GeoClaw model - a study of wave breaking phenomena applying dispersive long wave models
(Peer reviewed; Journal article, 2017)The nonlinear shallow water model is widely used in the study of tsunami propagation, but an increasing number of studies are dedicated to the dispersion dynamics of tsunamis. If the wave dispersion becomes important, ... -
A climatic trigger for the giant Troll pockmark field in the northern North Sea
(Journal article; Peer reviewed, 2017)Pockmarks are seafloor craters usually formed during methane release on continental margins. However, the mechanisms behind their formation and dynamics remain elusive. Here we report detailed investigations on one of the ... -
A Constitutive Model for Soft Clays Incorporating Elastic and Plastic Cross-Anisotropy
(Peer reviewed; Journal article, 2017)Natural clays exhibit a significant degree of anisotropy in their fabric, which initially is derived from the shape of the clay platelets, deposition process and one-dimensional consolidation. Various authors have proposed ... -
Advancing the Use of Passive Sampling in Risk Assessment and Management of Sediments Contaminated with Hydrophobic Organic Chemicals: Results of an International Ex Situ Passive Sampling Interlaboratory Comparison Michiel T. O. Jonker*† , Stephan A. van der He
(Peer reviewed; Journal article, 2018)This work presents the results of an international interlaboratory comparison on ex situ passive sampling in sediments. The main objectives were to map the state of the science in passively sampling sediments, identify ... -
A field laboratory for monitoring CO2 leakage
(Journal article, 2009)The long-term safety of future CO2 storage projects in aquifers will not only rely on a comprehensive geological characterisation of the formation and capillary seal, but also on the ability to effectively monitor the ... -
A Framework for Versatile Shape of Yield Surfaces for Structured Aniso-tropic Soft Soils
(Chapter, 2016)A framework based on logarithmic contractancy is proposed to produce versatile shapes of yield surfaces for structured anisotropic clays. The recently proposed constitutive model (E-SCLAY1S) is an extension of existing ... -
A GIS method for assessment of rock slide tsunami hazard in Norwegian lakes and reservoirs
(Journal article, 2009)An evaluation of rock slide tsunami hazard is applied to all Norwegian lakes larger than 0.1 km2 based on their topographical setting. The analysis results in a topographic rock slide potential score that indicates the ... -
A macro-element for integrated time domain analyses representing bucket foundations for offshore wind turbines
(Peer reviewed; Journal article, 2018)The paper presents a macro-element model for bucket foundations to be used in integrated time domain analyses of offshore wind turbines. The macro-element has been formulated in the multi-surface plasticity framework, and ... -
A macro-element model for multidirectional cyclic lateral loading of monopiles in clay
(Journal article; Peer reviewed, 2018)This paper investigates numerically the impact of multidirectional cyclic loads on the response of a monopile in clay supporting an offshore wind turbine (OWT). The results indicate that multidirectional loading modifies ... -
A macro-element pile foundation model for integrated analyses of monopilebased offshore wind turbines
(Journal article; Peer reviewed, 2018)The design of OWTs relies on integrated load analyses tools that simulate the response of the entire OWT (including the rotor-nacelle assembly, support structure and foundation) under combined aerodynamic and hydrodynamic ... -
A metagenomic study of methanotrophic microorganisms in Coal Oil Point seep sediments
(Journal article, 2011) -
A metagenomic study of the microbial communities in four parallel biogas reactors
(Journal article, 2014)This study showed that four parallel reactors co-digesting manure and fish waste silage operated stably during a startup phase. Several important Archaea and Bacteria degrading the protein-rich substrate were identified. ... -
An analytical plane-strain solution for surface uplift due to pressurized reservoirs
(Peer reviewed; Journal article, 2018)In this paper, we present an analytical plane strain solution for surface uplift above pressurized reservoirs. The solution is based on a Fourier representation of the reservoir pressure. The plane strain model is developed ... -
An anisotropic elastoplastic model for soft clays based on logarithmic contractancy
(Journal article, 2015)A new constitutive model for soft structured clays is developed based on an existing model called S-CLAY1S, which is a Cam clay type model that accounts for anisotropy and destructuration. The new model (E-SCLAY1S) uses ...