Laboratory Measurements of Compressional and Shear Wave Speeds through Methane Hydrate

• Published in: Annals of the New York Academy of Sciences
• Main Authors: WAITE, WILLIAM F., HELGERUD, MICHAEL B., NUR, AMOS, PINKSTON, JOHN C., STERN, LAURA A., KIRBY, STEPHEN H., DURHAM, WILLIAM B.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2000
• Subjects: Methane hydrate
• Online Access: http://dx.doi.org/10.1111/j.1749-6632.2000.tb06855.x; https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-6632.2000.tb06855.x; https://nyaspubs.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-6632.2000.tb06855.x

A bstract : Simultaneous measurements of compressional and shear wave speeds through polycrystalline methane hydrate have been made. Methane hydrate, grown directly in a wave speed measurement chamber, was uniaxially compacted to a final porosity below 2%. At 277 K, the compacted material had a compressional wave speed of 3,650 ± 50 m/s. The shear wave speed, measured simultaneously, was 1,890 ± 30 m/s. From these wave speed measurements, we derive V p / V s , Poisson's ratio, bulk, shear, and Young's moduli.