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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)

Editor
Baosong Ma
Baosong Ma
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ISBN:
9780791802922
No. of Pages:
1760
Publisher:
ASME Press
Publication date:
2009

Most gas hydrates are buried stably in the formations which locate 0–1000m below seafloor. The global climate, oceanographic and tectonic processes can affect the stability conditions of gas hydrate, resulting in highly dynamic changes of subseafloor environments. A coupled seafloor∕borehole observatory system can be used to monitor the chemical, microbiological and physical data to achieve a better understanding of these changes and the carbon cycling in gas hydrate-bearing continental margin. When the borehole instrumentations are deployed, the geomechanical stability of hydrate-bearing formation should be assessed if it can support the borehole instrumentations. Some drilling and completion methods will be taken...

Abstract
Introduction
Attentions and Measures When Deploying Borehole Monitoring System
Borehole Monitoring System Should Serve for Gas Hydrates Drilling
Elementary Design of Borehole Monitoring System
Discussion
Acknowledgements
Reference
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