Objective
Development, assembly and prototype testing of an innovative, downhole controlled autoclave system are proposed to sample sediments of the deepsea at in situ pressure and in situ temperature. The particular target would be sediments containing gas hydrates on the continental slopes in Europe and world-wide. The corer would be driven by a downhole (mud) motor instead of the top drive on board the research vessel/drillship. The main goal is to ultimately sample systematically and in more consolidated sediment those gas hydrates and to derive quantitatively validated parameters. The new autoclave system would thus permit the evaluation of pressure zones and gas hydrate occurrences in deepsea sediments of the European continental margins, including sediment slide areas such as the area of the Storegga slide at the Norwegian Continental slope or slides and gas hydrates recently discovered in the Eastern Mediterranean. The increasing awareness of the importance of gas hydrates in the global and marine environment, for marine safety and for potential future uses as a gas resource must be scientifically and systematically supported by sampling and quantitative verification. These goals concur with strategic decisions taken by the EU MAST community in 1995 and 1996. HYACE would be, at the same time, a priority development of the CORSAIRES (Coring Stable and Instable Realms in European Seas) program, adopted by the EU in 1995. CORSAIRES workshops on future work proposals and gas hydrate in September 1996, had selected the submission of a joint development for a gas hydrate sampling system as a prime topic.
The group submitting this proposal is composed of research institutes and industrial companies in France, Germany, Great Britain, Greece, the Netherlands, Norway and Spain.
They all have experts with many years of practical involvement in drilling, sampling and sensing in ocean research, marine geology, environmental studies, exploration and related services.
Scientists in Europe working on ocean sediments and on gas hydrates in particular will be interested to use the new system on ships available in Europe and world-wide.
Industry and in particular the oil and gas industry and service companies are also interested to use the autoclave system for drilling/coring in exploration and reservoir engineering. The novel HYACE system should be based on components from available and future deepsea research drilling vessels as they are or will be operated by European contractors. Development, tests and use of the autoclave sampler will be done in close co-operation with the European scientific and industrial communities, active in drilling, hydrocarbon resources and the marine environment.
For many years, separation of drilling and coring from ship motion, accelerations and forces generated on the drill floor and transferred to the hole via the drill string has been a requirement. In-situ controllable coring, driven by a downhole motor, should improve this separation. Scientific and commercial downhole coring could thus be significantly improved.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences organic chemistry hydrocarbons
- natural sciences earth and related environmental sciences geology
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Coordinator
10623 Berlin
Germany
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