Effects of Gas Hydrates in Sediments
Natural gas and water combine to form an ice-like substance called a gas hydrate under certain conditions of temperature and pressure. The presence of large quantities of gas in some sediments recovered during deep sea coring operations suggests that gas hydrates may exist in some of the sea floor sediments, because environmental conditions over vast areas of the ocean bottom are conducive to hydrate formation. Experiments on sediments containing artificially formed hydrate have shown that acoustic wave velocity and other physical properties may be markedly changed because of the presence of the hydrate. A program of research is currently being carried out to determine the acoustic, thermal and mechanical properties of sedimentary materials containing gas hydrates under conditions similar to those in the marine environment.
KeywordsWave Velocity Hydrate Formation Acoustic Wave Velocity Chlorine Hydrate Shear Wave Velocity Increase
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- Bryan, G. M., In situ indications of gas hydrates, in Natural Gases in Marine Sediments, edited by I. R. Kaplan, pp. 299–308, Plenum Press, New York, 1974.Google Scholar
- Carlson, H., Calculation of depth of thaw in frozen ground, Highway Res. Bd., Spec. Rep., 2, 1952.Google Scholar
- Chersky, N., and Y. Makogon, Solid gas-world reserves are enormous, Oil and Gas Int., 10 (8), 82, 1970.Google Scholar
- Deaton, W. M., and E. M. Frost, Jr., Gas hydrates and their relation to the operation of natural gas pipe lines, U. S. Bur. of Mines Monogr. 8, 1946.Google Scholar
- Ewing, J. I., and D. C. Hollister, Initial Reports of the Deep Sea Drilling Project, vol. 11, pp. 951–973, U. S. Government Printing Office, Washington, 1972.Google Scholar
- Hardin, B. O., and F. E. Richart, Elastic wave velocities in granular soils, J. Soil Mechs. and Found. Div., ASCE, 89, (SMI), 33, 1963.Google Scholar
- Katz, D. L., D. Cornell, R. Kobayashi, F. H. Poettmann, J. A. Vary, J. R. Elenbaas, and C. F. Weinang, Handbook of Natural Gas Engineering, P. 802, McGraw-Hill, New York, 1959.Google Scholar
- Untersteiner, N., Sea ice, in Encyclopedia of Oceanography, vol. 1, edited by R. W. Fairbridge, pp. 777–781, Reinholt, New York, 1966.Google Scholar
- van der Waals, J. H., and J. C. Platteeuw, Advances in Chemical Physics, vol. 2, pp. 2–57, Interscience, New York, 1959.Google Scholar
- Whitman, R. V., and F. V. Lawrence, Discussion of paper by Hardin3 and Richart , J. Soil Mechs. and Found. Div., ASCE, 89 (SM5), 112, 1963.Google Scholar