The EPICA Dronning Maud Land deep drilling operation
| Autor: | Michael D. Gerasimoff, Fernando Valero-Delgado, Sverrir Æ. Hilmarsson, Torbjörn Karlin, Astrid Lambrecht, Jochen Schmitt, Guido Kleffel, Simon G. Sheldon, Gunther Lawer, Hannes Grobe, Heinrich Miller, Patrik R Kaufmann, Diedrich Fritzsche, Steffen B. Hansen, Andrea Jaeschke, Achim Karsten, Cord Drücker, Andreas Frenzel, Morimasa Takata, Georg Hoffmann, Steinunn S. Jakobsdottir, Frank Wilhelms, Paul Juckschat, Kerstin Hörnby, Lorenz Karsten, Marcus Trenke, Eberhard Kohlberg, Dorothee Wilhelms-Dick, Birthe Twarloh, Anja Lambrecht, Ivan Schärmeli |
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| Přispěvatelé: | Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Glaces et Continents, Climats et Isotopes Stables (GLACCIOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere 010506 paleontology 010504 meteorology & atmospheric sciences Meteorology Petroleum engineering Drill 530 Physics Drilling East antarctica Motor torque Limiting 01 natural sciences Penetration rate Deep drilling [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Geology 0105 earth and related environmental sciences Earth-Surface Processes Production rate |
| Zdroj: | Annals of Glaciology Annals of Glaciology, 2014, 55 (68), pp.355-366. ⟨10.3189/2014AoG68A189⟩ Annals of Glaciology, International Glaciological Society, 2014, 55 (68), pp.355-366. ⟨10.3189/2014AoG68A189⟩ EPIC3Annals of Glaciology, International Glaciological Society, 55(68), pp. 355-366, ISSN: 0260-3055 WILHELMS, Frank; MILLER, Heinrich; GERASIMOFF, Michael D.; DRÜCKER, Cord; FRENZEL, Andreas; FRITZSCHE, Diedrich; GROBE, Hannes; HANSEN, Steffen Bo; HILMARSSON, Sverrir Æ.; HOFFMANN, Georg; HÖRNBY, Kerstin; JAESCHKE, Andrea; JAKOBSDÓTTIR, Steinunn S.; JUCKSCHAT, Paul; KARSTEN, Achim; KARSTEN, Lorenz; Kaufmann, Patrik R.; KARLIN, Torbjörn; KOHLBERG, Eberhard; KLEFFEL, Guido; ... (2014). The EPICA Dronning Maud Land deep drilling operation. Annals of glaciology, 55(68), pp. 355-366. International Glaciological Society 10.3189/2014AoG68A189 |
| ISSN: | 0260-3055 1727-5644 |
| Popis: | We report on the EPICA Dronning Maud Land (East Antarctica) deep drilling operation. Starting with the scientific questions that led to the outline of the EPICA project, we introduce the setting of sister drillings at NorthGRIP and EPICA Dome C within the European ice-coring community. The progress of the drilling operation is described within the context of three parallel, deep-drilling operations, the problems that occurred and the solutions we developed. Modified procedures are described, such as the monitoring of penetration rate via cable weight rather than motor torque, and modifications to the system (e.g. closing the openings at the lower end of the outer barrel to reduce the risk of immersing the drill in highly concentrated chip suspension). Parameters of the drilling (e.g. core-break force, cutter pitch, chips balance, liquid level, core production rate and piece number) are discussed. We also review the operational mode, particularly in the context of achieved core length and piece length, which have to be optimized for drilling efficiency and core quality respectively. We conclude with recommendations addressing the design of the chip-collection openings and strictly limiting the cable-load drop with respect to the load at the start of the run. |
| Databáze: | OpenAIRE |
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