Gas Hydrates and Permafrost 299 Perspectives for the development of gas-hydrate deposits

• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Arctic; Le Fond; permafrost
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.536.3978; http://pubs.aina.ucalgary.ca/cpc/cpc4-299.pdf

Large reserves of natural gases in the hydrate state are concentrated in the cryolite section of the earth's crust and on the sea-floor. Gas in such deposits is combined with water in a solid state. These deposits require unconventional methods of development. The presence of hydrate formation condi-tions on the sea-floor and on land have, to a large extent, helped to conserve and concentrate the hydrocarbon fuel on our planet. The tremendous gas reserves in the hydrate phase, which amount to tens of trillions of cubic metres on land and tens of thousands of trillions of cubic metres beneath the oceans, require thorough mul-tidisciplinary investigations and the development of effective means of detection. The question of prospecting and development of free hydrocarbons concentrated in the region between the arctic shelf and the exposed continents, and beneath the hydrated impermeable cover which extends along the whole arctic coast, is of particular importance. De vastes reserves de gaz nature1 sont concentries sous forme d'hydrates dans la partie geke de la crotite terrestre et sur le fond marin. Dans ces gites, les gaz se combinent a l'eau sous une forme solide. Le dtveloppement de ces gites exige des mtthodes non conventionnelles. L'existence de conditions favorables a la formation d'hydrates sur le fond marin et sur les continents a, dans une certaine mesure, favorise la conservation et la concentration des hydrocarbures sur notre planete. Pour explorer les immenses reserves de gaz conservees sous les oceans sous forme d'hydrates, et constituant des dizaines de trillions de metres cubes, il faudra effectuer des investigations pluri-disciplinaires detaillkes, et mettre au point des moyens efficaces de detection. On cherche surtout a savoir comment prospecter et exploiter les gites d'hydrocarbures libres concentres dans la region entre la date-forme arctiaue et les continents exposts, et audessous de la couverture impermeable hydratee s'ktend tout au iong de la cBte arctiquc Proc. 4th Can. Permafrost Conf. ...