Measured temperature and pressure dependence of Vp and Vs in compacted, polycrystalline sI methane and sII methane-ethane hydrate
Canadian Journal of Physics
By: M.B. Helgerud, W.F. Waite, S. H. Kirby, and A. Nur
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Abstract
We report on compressional- and shear-wave-speed measurements made on compacted polycrystalline sI methane and sII methane-ethane hydrate. The gas hydrate samples are synthesized directly in the measurement apparatus by warming granulated ice to 17??C in the presence of a clathrate-forming gas at high pressure (methane for sI, 90.2% methane, 9.8% ethane for sII). Porosity is eliminated after hydrate synthesis by compacting the sample in the synthesis pressure vessel between a hydraulic ram and a fixed end-plug, both containing shear-wave transducers. Wave-speed measurements are made between -20 and 15??C and 0 to 105 MPa applied piston pressure.
Suggested Citation
Helgerud, M., Waite, W., Kirby, S.H., and Nur, A., 2003, Measured temperature and pressure dependence of Vp and Vs in compacted, polycrystalline sI methane and sII methane-ethane hydrate: Canadian Journal of Physics, v. 81, no. 1-2, p. 47-53, https://doi.org/10.1139/p03-016.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Measured temperature and pressure dependence of Vp and Vs in compacted, polycrystalline sI methane and sII methane-ethane hydrate |
| Series title | Canadian Journal of Physics |
| DOI | 10.1139/p03-016 |
| Volume | 81 |
| Issue | 1-2 |
| Year Published | 2003 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Canadian Journal of Physics |
| First page | 47 |
| Last page | 53 |