A5018374946- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Reservoir Engineering and Simulation Methods
- CO2 Sequestration and Geologic Interactions
- Social and Educational Sciences
- Geological and Geophysical Studies
- Geothermal Energy Systems and Applications
- Methane Hydrates and Related Phenomena
- Geological formations and processes
- Geological Modeling and Analysis
- Seismic Imaging and Inversion Techniques
- Education, Healthcare and Sociology Research
- Geology and Paleoclimatology Research
- Geological and Geochemical Analysis
- Paleontology and Stratigraphy of Fossils
- Seismic Waves and Analysis
- Drilling and Well Engineering
- Petroleum Processing and Analysis
- Groundwater flow and contamination studies
- Hydraulic Fracturing and Reservoir Analysis
- Integrated Energy Systems Optimization
- earthquake and tectonic studies
- NMR spectroscopy and applications
- Social and Cultural Dynamics
- Organizational Learning and Leadership
Geological Survey of Denmark and Greenland
2010-2022
Roskilde University
1979-2005
Denmark constitutes a low-enthalpy geothermal area, and currently production takes places from two sandstone-rich formations: the Bunter Sandstone Gassum formations. These formations form major reservoirs in Danish but exploration is associated with high geological uncertainty information about reservoir permeability difficult to obtain. Prediction of porosity prior drilling therefore essential order reduce risks. Geologically these represent excellent examples sandstone diversity, since...
The Cambrian to Lower Silurian succession in Denmark is mostly composed of organic-rich black shales that were deposited an epicontinental sea during a period high global level (Haq & Schutter 2008). mid-Cambrian early Ordovician Alum Shale was intensively studied the 1980s for its source-rock properties (e.g. Buchardt et al. 1986). Recent attention has focused on potential as unconventional shale gas source (Energistyrelsen 2010). On southern Bornholm, many wells have been drilled...
Abstract Climate changes preserved in sandstones are documented by comparing the sediment composition and early diagenetic deposited during arid to semi‐arid conditions, Skagerrak Formation, with of Gassum Formation a humid well‐vegetated environment. The study area covers easternmost part Norwegian–Danish Basin, for which Fennoscandian Shield functioned as source area. depositional environments formations, their distribution burial depths well‐constrained, facilitating comprehensive...
Growth of fibrous illite may destroy an otherwise promising sandstone reservoir, even sandstones characterized by microquartz coatings. Therefore detailed petrographical and diagenetic investigations were performed in order to understand the factors that control precipitation other affecting reservoir properties Upper Jurassic Heno Formation. The Formation is encountered large parts Danish Central Graben, where its lower part – Gert Member was mainly deposited back-barrier environments upper...
The northern offshore part of the Cenozoic Song Hong Basin in Gulf Tonkin (East Vietnam Sea) is at an early stage exploration with only a few wells drilled. Oil to source rock correlation indicates that coals are responsible for sub‐commercial oil and gas accumulations sandstones two four which have been drilled on faulted anticlines flower structures. located narrow, structurally inverted zone thick predominantly deltaic Miocene succession between Chay Vinh Ninh/Song Lo fault zones. These...
Lacustrine and marine oil shales with Type I I‐II kerogen constitute significant petroleum source rocks around the world. Contrary to common belief, such show considerable compositional variability which influences their hydrocarbon generation characteristics. A global set of 23 Ordovician – Miocene freshwater brackish water lacustrine has been studied regard organic composition, potential kinetics. In addition characteristics have modelled. The can be classified as lacosite, torbanite,...
Abstract The principal exploration targets in the northwestern part of Danish Central Graben have been Upper Jurassic sandstone reservoirs. presence and effectiveness oil-generating rocks Jurassic–lowermost Cretaceous marine shales Farsund Formation has generally not considered as a significant risk. This study provides an evaluation source rock quality, maturity distribution oils this area. kerogen is algal-derived, type ranges from Type II to III. Generally quality fair excellent, but...
This paper presents a numerical procedure for predicting subsurface temperatures and heat-flow distribution in 3-D using inverse calibration methodology. The is based on modified version of the groundwater code MODFLOW by taking advantage mathematical similarity between confined flow (Darcy's law) heat conduction (Fourier's law). Thermal conductivity, production exponential porosity–depth relations are specified separately individual geological units model domain. steady-state temperature...
The summer of 2000 was exciting for everyone interested in the petroleum geology and exploration West Greenland. first offshore well more than 20 years drilled by Statoil group Fylla licence area, seismic acquisition activity Greenland intense previous with four new surveys being carried out (Fig. 1).
 Expectations were high when drilling Qulleq-1 initiated July 2000, not only licensees authorities, but also public. classified as highly confidential, nevertheless all information...
The quality, thermal maturity and distribution of potential source rocks within the Palaeozoic–Mesozoic succession Danish part Norwegian-Danish Basin have been evaluated on basis screening data from over 4000 samples pre-Upper Cretaceous in 33 wells. Lower Palaeozoic basin is overmature Upper – Cenozoic strata no petroleum generation potential, but Toarcian marine shales Jurassic Fjerritslev Formation (F-III, F-IV members) uppermost lowermost Frederikshavn may qualify as parts basin. Neither...
The Danish part of the Central Graben (DCG) is one petroliferous basins in offshore region north-western Europe. source rock quality and maturity here reviewed, based on 5556 Rock-Eval analyses total organic carbon (TOC) measurements from 78 wells 1175 vitrinite reflectance (VR) measurement 55 wells, which makes this study most comprehensive to date. thermal evaluated through 1-D basin modelling 46 wells. Statistical parameters describ-ing distribution TOC, hydrocarbon index (HI) Tmax are...
The Wandel Sea Basin in eastern North Greenland is the northernmost of a series fault-bounded Late Palaeozoic – Early Tertiary basins exposed along and northern margin (Fig. 1). basin surrounding shelf areas are located geologically complex region at junction between N–S trending Caledonian fold belt East E–W Ellesmerian Greenland, zone later, Tertiary, continental break-up. started to develop during Carboniferous as result extension rifting Norway, Spitsbergen (Håkansson & Stemmerik...
Concerns about climate change have led to increased interest in geothermal energy as one way of reducing the consumption fossil fuels and thus limit CO2 emissions. Use is based on well-established technologies, a high degree security supply, little visual or noise inconvenience. More than hundred plants been established Europe. There large potential for using from Danish subsurface, first pointed out by Balling (1976). Geothermal highly suitable district heating systems expected cover part...
We present a rock physics feasibility study to predict the seismic response for various geothermal reservoir scenarios and perform post-stack inversion, focusing on sandstone in south Denmark. Our objective is investigate how variations influence characteristics, and, estimate spatial porosity permeability model. The shows sensitivity with varying lithology Bunter sandstone, estimations away from well locations. prognosis was influenced by inherent uncertainties associated limited local...