Search Results - "Heeschen, Katja"

Gas Production from Methane Hydrate: A Laboratory Simulation of the Multistage Depressurization Test in Mallik, Northwest Territories, Canada by Heeschen, Katja U, Abendroth, Sven, Priegnitz, Mike, Spangenberg, Erik, Thaler, Jan, Schicks, Judith M

“…Gas hydrate production is still in the test phase. It is only now that numerical models are being developed to describe data and production scenarios…”
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The promoting effect of natural sand on methane hydrate formation: Grain sizes and mineral composition by Heeschen, Katja U., Schicks, Judith M., Oeltzschner, Gunnar

“…[Display omitted] •Strong variations in the promotion of methane hydrate formation in natural sand.•Surface and mineralogical changes such as…”
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Production Method under Surveillance: Laboratory Pilot-Scale Simulation of CH4–CO2 Exchange in a Natural Gas Hydrate Reservoir by Heeschen, Katja U, Deusner, Christian, Spangenberg, Erik, Priegnitz, Mike, Kossel, Elke, Strauch, Bettina, Bigalke, Nikolaus, Luzi-Helbing, Manja, Haeckel, Matthias, Schicks, Judith M

“…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…”
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Correction to Gas Production from Methane Hydrate: A Laboratory Simulation of the Multistage Depressurization Test in Mallik, Northwest Territories, Canada by Heeschen, Katja U, Abendroth, Sven, Priegnitz, Mike, Spangenberg, Erik, Thaler, Jan, Schicks, Judith M

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A Quick Look Method to Assess the Dependencies of Rock Physical Sediment Properties on the Saturation With Pore‐Filling Hydrate by Spangenberg, Erik, Seyberth, Karl, Heeschen, Katja U., Priegnitz, Mike, Schicks, Judith M.

“…Within the framework of the national German hydrate project Submarine Gas Hydrate Reservoirs (SUGAR) we promised to deliver dependencies of compressional‐wave…”
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Seafloor Methane Seepage Related to Salt Diapirism in the Northwestern Part of the German North Sea by Römer, Miriam, Blumenberg, Martin, Heeschen, Katja, Schloemer, Stefan, Müller, Hendrik, Müller, Simon, Hilgenfeldt, Christian, Barckhausen, Udo, Schwalenberg, Katrin

“…This study focuses on seafloor methane seep sites and their distribution in the northwestern part of the German North Sea. Methane seepage is a common…”
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Biodiversity of Cold Seep Ecosystems Along the European Margins by VANREUSEL, ANN, ANDERSEN, ANN C., BOETIUS, ANTJE, CONNELLY, DOUGLAS, CUNHA, MARINA R., DECKER, CAROLE, HILARIO, ANA, KORMAS, KONSTANTINOS A., MAIGNIEN, LOÏS, OLU, KARINE, PACHIADAKI, MARIA, RITT, BENEDICTE, RODRIGUES, CLARA, SARRAZIN, JOZÉE, TYLER, PAUL, VAN GAEVER, SASKIA, VANNESTE, HELEEN

“…During the European Commission's Framework Six Programme, HERMES, we investigated three main areas along the European margin, each characterized by the…”
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Microstructures of structure I and II gas hydrates from the Gulf of Mexico by Klapp, Stephan A., Bohrmann, Gerhard, Kuhs, Werner F., Mangir Murshed, M., Pape, Thomas, Klein, Helmut, Techmer, Kirsten S., Heeschen, Katja U., Abegg, Friedrich

“…Gas hydrate samples from various locations in the Gulf of Mexico (GOM) differ considerably in their microstructure. Distinct microstructure characteristics…”
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In situ hydrocarbon concentrations from pressurized cores in surface sediments, Northern Gulf of Mexico by Heeschen, Katja U., Hohnberg, Hans Jürgen, Haeckel, Matthias, Abegg, Friedrich, Drews, Manuela, Bohrmann, Gerhard

“…Two newly developed coring devices, the Multi-Autoclave-Corer and the Dynamic Autoclave Piston Corer were deployed in shallow gas hydrate-bearing sediments in…”
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Distribution and height of methane bubble plumes on the Cascadia Margin characterized by acoustic imaging by Heeschen, Katja U., Tréhu, Anne M., Collier, Robert W., Suess, Erwin, Rehder, Gregor

“…Submersible investigations of the Cascadia accretionary complex have identified localized venting of methane gas bubbles in association with gas hydrate…”
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Methane dynamics in the Weddell Sea determined via stable isotope ratios and CFC-11 by Heeschen, Katja U., Keir, Robin S., Rehder, Gregor, Klatt, Olaf, Suess, Erwin

“…The physical, chemical/biological processes that control the methane dynamics in the Weddell Sea are revealed by the distributions of methane (CH4), its stable…”
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Methane sources, distributions, and fluxes from cold vent sites at Hydrate Ridge, Cascadia Margin by Heeschen, Katja U., Collier, Robert W., de Angelis, Marie A., Suess, Erwin, Rehder, Gregor, Linke, Peter, Klinkhammer, Gary P.

“…To constrain the fluxes of methane (CH4) in the water column above the accretionary wedge along the Cascadia continental margin, we measured methane and its…”
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Widespread fluid expulsion along the seafloor of the Costa Rica convergent margin by Bohrmann, Gerhard, Heeschen, Katja, Jung, Carmen, Weinrebe, Willi, Baranov, Boris, Cailleau, Béatrice, Heath, Richard, Hühnerbach, Veit, Hort, Matthias, Masson, Douglas, Trummer, Irmgard

“…Active fluid and gas transport were measured and observed along more than 200 km of the convergent margin of Costa Rica during cruise SO144‐2 aboard RV Sonne…”
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Are Laboratory-Formed Hydrate-Bearing Systems Analogous to Those in Nature? by Spangenberg, Erik, Priegnitz, Mike, Heeschen, Katja, Schicks, Judith M

“…The intensive study of hydrate-bearing sandy sediments, a possible source of fossil energy for future generations, leads to an accumulation of information from…”
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The impact of ice on the tensile strength of unconsolidated sand - A model for gas hydrate-bearing sands? by Heeschen, Katja U., Janocha, Julian, Spangenberg, Erik, Schicks, Judith M., Giese, Ronny

“…Tensile strength is an important parameter when it comes to predictions of potential fracturing of sediments by natural processes such as the emplacement of…”
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Application of tubular silicone (PDMS) membranes for gas monitoring in CO2–CH4 hydrate exchange experiments by Strauch, Bettina, Heeschen, Katja U., Schicks, Judith M., Spangenberg, Erik, Zimmer, Martin

“…The exchange of hydrate-bond CH4 with CO2 is one possible method for the production of CH4 from hydrate-bearing sediment which was investigated on different…”
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Development, test, and evaluation of exploitation technologies for the application of gas production from natural gas hydrate reservoirs and their potential application in the Danube Delta, Black Sea by Schicks, Judith M., Haeckel, Matthias, Janicki, Georg, Spangenberg, Erik, Thaler, Jan, Giese, Ronny, Strauch, Bettina, Heeschen, Katja, Priegnitz, Mike, Luzi-Helbing, Manja, Deusner, Christian, Kossel, Elke, Bigalke, Nikolaus, Schlüter, Stefan, Hennig, Torsten, Deerberg, Görge, Wallmann, Klaus

“…One important scientific objective of the national research project SUGAR – Submarine Gas Hydrate Reservoirs was the development, improvement, and test of…”
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Production Method under Surveillance: Laboratory Pilot-Scale Simulation of CH 4 –CO 2 Exchange in a Natural Gas Hydrate Reservoir by Heeschen, Katja U., Deusner, Christian, Spangenberg, Erik, Priegnitz, Mike, Kossel, Elke, Strauch, Bettina, Bigalke, Nikolaus, Luzi-Helbing, Manja, Haeckel, Matthias, Schicks, Judith M.

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Drilling Overdeepened Alpine Valleys (ICDP-DOVE): quantifying the age, extent, and environmental impact of Alpine glaciations by Anselmetti, Flavio S, Bavec, Milos, Crouzet, Christian, Fiebig, Markus, Gabriel, Gerald, Preusser, Frank, Ravazzi, Cesare

“…The sedimentary infill of glacially overdeepened valleys (i.e., structures eroded below the fluvial base level) is an excellent but yet underexplored archive…”
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Authigenic carbonates from the Darwin Mud Volcano, Gulf of Cadiz: A record of palaeo-seepage of hydrocarbon bearing fluids by Vanneste, Heleen, Kastner, Miriam, James, Rachael H., Connelly, Douglas P., Fisher, Rebecca E., Kelly-Gerreyn, Boris A., Heeschen, Katja, Haeckel, Matthias, Mills, Rachel A.

“…Hydrocarbon-rich fluids expelled at mud volcanoes (MVs) may contribute significantly to the carbon budget of the oceans, but little is known about the…”
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