Introduction to physical properties and elasticity models
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Abstract
Estimating the in situ methane hydrate volume from seismic surveys requires knowledge of the rock physics relations between wave speeds and elastic moduli in hydrate/sediment mixtures. The elastic moduli of hydrate/sediment mixtures depend on the elastic properties of the individual sedimentary particles and the manner in which they are arranged. In this chapter, we present some rock physics data currently available from literature. The unreferenced values in Table I were not measured directly, but were derived from other values in Tables I and II using standard relationships between elastic properties for homogeneous, isotropic material. These derivations allow us to extend the list of physical property estimates, but at the expense of introducing uncertainties due to combining property values measured under different physical conditions. This is most apparent in the case of structure II (sII) hydrate for which very few physical properties have been measured under identical conditions.
Suggested Citation
Dvorkin, J., Helgerud, M.B., Waite, W., Kirby, S.H., Nur, A., 2003, Introduction to physical properties and elasticity models, chap. 20 of Natural gas hydrate in oceanic and permafrost environments, v. 5, p. 245-260, https://doi.org/10.1007/978-94-011-4387-5_20.
| Publication type | Book chapter |
|---|---|
| Publication Subtype | Book Chapter |
| Title | Introduction to physical properties and elasticity models |
| Chapter | 20 |
| DOI | 10.1007/978-94-011-4387-5_20 |
| Volume | 5 |
| Year Published | 2003 |
| Language | English |
| Publisher | Springer |
| Contributing office(s) | Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center |
| Description | 16 p. |
| Larger Work Type | Book |
| Larger Work Subtype | Monograph |
| Larger Work Title | Natural gas hydrate in oceanic and permafrost environments |
| First page | 245 |
| Last page | 260 |