Elke Kossel
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View article: Production Method under Surveillance: Laboratory Pilot-Scale Simulation of CH<sub>4</sub>–CO<sub>2</sub> Exchange in a Natural Gas Hydrate Reservoir
Production Method under Surveillance: Laboratory Pilot-Scale Simulation of CH<sub>4</sub>–CO<sub>2</sub> Exchange in a Natural Gas Hydrate Reservoir Open
The "guest exchange"of methane (CH4) by carbon dioxide (CO2) in naturally occurring gas hydrates is seen as a possibility to concurrently produce CH4 and sequester CO2. Presently, process evaluation is based on CH4-CO2 exchange yields of s…
View article: Microscale Processes and Dynamics during CH4–CO2 Guest-Molecule Exchange in Gas Hydrates
Microscale Processes and Dynamics during CH4–CO2 Guest-Molecule Exchange in Gas Hydrates Open
The exchange of CH4 by CO2 in gas hydrates is of interest for the production of natural gas from methane hydrate with net zero climate gas balance, and for managing risks that are related to sediment destabilization and mobilization after …
View article: Towards improved monitoring of offshore carbon storage: A real-world field experiment detecting a controlled sub-seafloor CO2 release
Towards improved monitoring of offshore carbon storage: A real-world field experiment detecting a controlled sub-seafloor CO2 release Open
Carbon capture and storage (CCS) is a key technology to reduce carbon dioxide (CO2) emissions from industrial processes in a feasible, substantial, and timely manner. For geological CO2 storage to be safe, reliable, and accepted by society…
View article: Microplastic abundance in beach sediments of the Kiel Fjord, Western Baltic Sea
Microplastic abundance in beach sediments of the Kiel Fjord, Western Baltic Sea Open
We assessed the abundance of microplastics (0.2–5 mm) in drift line sediments from three sites in Kiel Fjord, Western Baltic Sea. The first site is intensively used by beach visitors, the second is in close proximity to a sewage plant and …
View article: Microplastic abundance in beach sediments of the Kiel Fjord
Microplastic abundance in beach sediments of the Kiel Fjord Open
We assessed the abundance of microplastic (0.2 - 5 mm) in drift line sediments from three sites in Kiel Fjord, Western Baltic. The first site is intensively used by beach visitors, the second is in close proximity to a sewage plant and the…
View article: Analysis of THCM coupling in heterogeneous sediments using high-pressure flow-through testing systems
Analysis of THCM coupling in heterogeneous sediments using high-pressure flow-through testing systems Open
<p>The experimental and numerical investigation of THCM process coupling is important to better understand reservoir geotechnical behavior and sub-surface processes. In particular, when THCM process coupling is dominated by focused f…
View article: Strain Rate‐Dependent Hardening‐Softening Characteristics of Gas Hydrate‐Bearing Sediments
Strain Rate‐Dependent Hardening‐Softening Characteristics of Gas Hydrate‐Bearing Sediments Open
The presence of gas hydrates (GHs) increases the stiffness and strength of marine sediments. In elasto‐plastic constitutive models, it is common to consider GH saturation ( S h ) as key internal variable for defining the contribution of GH…
View article: The Dependence of Water Permeability in Quartz Sand on Gas Hydrate Saturation in the Pore Space
The Dependence of Water Permeability in Quartz Sand on Gas Hydrate Saturation in the Pore Space Open
Transport of fluids in gas hydrate bearing sediments is largely defined by the reduction of the permeability due to gas hydrate crystals in the pore space. Although the exact knowledge of the permeability behavior as a function of gas hydr…
View article: R/V METEOR cruise report M142, Drilling Gas Hydrates in the Danube Deep-Sea Fan, Black Sea, Varna – Varna – Varna, 04 November – 22 November – 09 December 2017
R/V METEOR cruise report M142, Drilling Gas Hydrates in the Danube Deep-Sea Fan, Black Sea, Varna – Varna – Varna, 04 November – 22 November – 09 December 2017 Open
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View article: Combining CO2 sequestration and CH4 production by means of guest exchange in a gas hydrate reservoir: two pilot scale experiments
Combining CO2 sequestration and CH4 production by means of guest exchange in a gas hydrate reservoir: two pilot scale experiments Open
Methane (CH4) hydrates are considered as a player in the field of energy supply and – if applied as such – as a possible sink for the greenhouse gas carbon dioxide (CO2). Next to the more conventional production methods depressurization an…
View article: Laboratory experiments for investigating permeability of gas hydrate bearing sands
Laboratory experiments for investigating permeability of gas hydrate bearing sands Open
Experiments were performed with a 12 mm long and 1.2 mm diameter sapphire tube at pressures above 12 MPa and temperatures of 5°C. The tube was filled with sand (mean grain size 0.29 mm, maximum grain size 0.7 mm, minimum grain size 0.063 m…
View article: The role of high-pressure flow-through experiments for evaluating the mechanical behaviour of gas hydrate-bearing soils
The role of high-pressure flow-through experiments for evaluating the mechanical behaviour of gas hydrate-bearing soils Open
Results from two recent field trials, onshore in the Alaska permafrost and in the Nankai Trough offshore Japan, suggest that natural gas could be produced from marine gas hydrate reservoirs at compatible yields and rates. However, both fie…