Open AccessAssessment of Marine Gas Hydrates and Associated Free Gas Distribution Offshore Uruguay
Author(s) -
Juan Tomasini,
Héctor de Santa Ana,
Bruno Conti,
Santiago Ferro,
Pablo Gristo,
Josefina Marmisolle,
Ethel Morales,
Pablo Rodríguez,
Matías Soto,
Gerardo Veroslavsky
Publication year - 2011
Publication title -
journal of geological research
Language(s) - English
Resource type - Journals
eISSN - 1687-8841
pISSN - 1687-8833
DOI - 10.1155/2011/326250
Subject(s) - clathrate hydrate , natural gas , methane , submarine pipeline , permafrost , continental margin , geology , methane gas , petroleum engineering , continental shelf , hydrate , geochemistry , oceanography , seismology , tectonics , chemistry , waste management , engineering , organic chemistry
Natural gas hydrates are crystalline solids formed by natural gas (mainly methane) and water that are stable under thermobaric conditions of high pressure and low temperature. Methane hydrate is found in polar areas of permafrost and in offshore basins of continental margins. These accumulations may represent an enormous source of methane. Based on global estimations of methane concentration in natural gas hydrates, the methane content may be several times greater than those of technically recoverable, conventional natural gas resources. In the continental margin of Uruguay, seismic evidence for the occurrence of gas hydrate is based on the presence of (bottom simulating reflectors) BSRs in 2D seismic reflection sections. Here we present results regarding gas hydrates and associated free gas distribution assessment offshore Uruguay, based on BSR mapping and applying a probabilistic approach. A mean value of 25,890 km2 for the area of occurrence shows a great potential for this nonconventional resource, encouraging further research
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