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International Conference on Gas Hydrates (ICGH) (6th : 2008)
ESTIMATING THE IN SITU MECHANICAL PROPERTIES OF SEDIMENTS CONTAINING GAS HYDRATES. Birchwood, Richard; Singh, Rishi; Mese, Ali
Abstract
Estimating the in situ mechanical properties of sediments containing gas hydrates from seismic or log data is essential for evaluating the risks posed by mechanical failure during drilling, completions, and producing operations. In this paper, a method is presented for constructing correlations between the mechanical properties of gas hydrate bearing sediments and geophysical data. A theory based on micromechanics models was used to guide the selection of parameters that govern the physical behavior of sediments. A set of nondimensionalized relations between elastoplastic properties and those that could be inferred from log or seismic data was derived. Using these relations, a correlation for the Young’s modulus was constructed for sands with methane and THF hydrate using data from a wide variety of sources. It was observed that the correlation did not fit data obtained from samples with high THF hydrate saturations, due possibly to the existence of cohesive mechanisms that operate in such regimes.
Item Metadata
Title |
ESTIMATING THE IN SITU MECHANICAL PROPERTIES OF SEDIMENTS CONTAINING GAS HYDRATES.
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Creator | |
Contributor | |
Date Issued |
2008-07
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Description |
Estimating the in situ mechanical properties of sediments containing gas hydrates from seismic or
log data is essential for evaluating the risks posed by mechanical failure during drilling,
completions, and producing operations. In this paper, a method is presented for constructing
correlations between the mechanical properties of gas hydrate bearing sediments and geophysical
data. A theory based on micromechanics models was used to guide the selection of parameters
that govern the physical behavior of sediments. A set of nondimensionalized relations between
elastoplastic properties and those that could be inferred from log or seismic data was derived.
Using these relations, a correlation for the Young’s modulus was constructed for sands with
methane and THF hydrate using data from a wide variety of sources. It was observed that the
correlation did not fit data obtained from samples with high THF hydrate saturations, due
possibly to the existence of cohesive mechanisms that operate in such regimes.
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Extent |
1685191 bytes
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Subject | |
Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2008-07-21
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0041003
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URI | |
Affiliation | |
Citation |
Birchwood, Richard; Singh, Rishi; Mese, Ali. 2008. ESTIMATING THE IN SITU MECHANICAL PROPERTIES OF SEDIMENTS CONTAINING GAS HYDRATES. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008.
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Peer Review Status |
Unreviewed
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Copyright Holder |
Birchwood, Richard
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International