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International Conference on Gas Hydrates (ICGH) (6th : 2008)

TESTING OF PRESSURISED CORES CONTAINING GAS HYDRATE FROM DEEP OCEAN SEDIMENTS Clayton, Chris R.I.; Kingston, Emily; Priest, Jeffery; Schultheiss, Peter; NGHP Expedition 01 Scientific Party

Abstract

The recent development and deployment of HYACINTH and IODP PCS pressure cores on the JOIDES Resolution during Expedition 1 of the Indian National Gas Hydrate Program (NGHP-1) has provided some of the first “undisturbed” samples of gas hydrate in fine grained marine sediments. Some samples, once recovered from the seafloor, were subject to rapid depressurization and subsequent immersion in liquid nitrogen, at approximately -196oC, for use in subsequent laboratory test programs. This paper describes the techniques used at Southampton University, the difficulties encountered, and the results obtained from geotechnical testing of these samples. The original intention had been to pressurize and unfreeze the material before testing it in the Gas Hydrate Resonant Column (GHRC) Apparatus. Initial CT scanning of the samples showed that the sample quality might be too poor for such testing, and this proved to be the case. Instead a suite of geotechnical testing was carried out, the results of which are reported and interpreted in this paper.

Item Metadata

Title
TESTING OF PRESSURISED CORES CONTAINING GAS HYDRATE FROM DEEP OCEAN SEDIMENTS
Creator
Clayton, Chris R.I.; Kingston, Emily; Priest, Jeffery; Schultheiss, Peter; NGHP Expedition 01 Scientific Party
Contributor
University of British Columbia. Department of Chemical and Biological Engineering; International Conference on Gas Hydrates (6th : 2008 : Vancouver, B.C.)
Date Issued
2008-07
Description
The recent development and deployment of HYACINTH and IODP PCS pressure cores on the JOIDES Resolution during Expedition 1 of the Indian National Gas Hydrate Program (NGHP-1) has provided some of the first “undisturbed” samples of gas hydrate in fine grained marine sediments. Some samples, once recovered from the seafloor, were subject to rapid depressurization and subsequent immersion in liquid nitrogen, at approximately -196oC, for use in subsequent laboratory test programs. This paper describes the techniques used at Southampton University, the difficulties encountered, and the results obtained from geotechnical testing of these samples. The original intention had been to pressurize and unfreeze the material before testing it in the Gas Hydrate Resonant Column (GHRC) Apparatus. Initial CT scanning of the samples showed that the sample quality might be too poor for such testing, and this proved to be the case. Instead a suite of geotechnical testing was carried out, the results of which are reported and interpreted in this paper.
Extent
440915 bytes
Subject
Gas hydrates; Pressure cores; Geotechnical testing
Genre
Conference Paper
Type
Text
File Format
application/pdf
Language
eng
Date Available
2008-09-10
Provider
Vancouver : University of British Columbia Library
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International
DOI
10.14288/1.0041127
URI
http://hdl.handle.net/2429/1795
Affiliation
Non UBC
Citation
Clayton, Chris R.I.; Kingston, Emily; Priest, Jeffery; Schultheiss, Peter; NGHP Expedition 01 Scientific Party. 2008. TESTING OF PRESSURISED CORES CONTAINING GAS HYDRATE FROM DEEP OCEAN SEDIMENTS. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008.
Peer Review Status
Unreviewed
Copyright Holder
Priest, Jeffrey
Rights URI
http://creativecommons.org/licenses/by-nc-nd/4.0/
Aggregated Source Repository
DSpace

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Attribution-NonCommercial-NoDerivatives 4.0 International