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.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BVAU.2429/1052 |
| Date | 07 1900 |
| Creators | Birchwood, Richard, Singh, Rishi, Mese, Ali |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | text |
| Rights | Birchwood, Richard |
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