Abstract
Natural gas hydrates are increasingly viewed as a potential economic resource as energy demands rise. In this study, three-dimensional seismic data for Block 26 in the Atlantic Continental Margin offshore Trinidad were evaluated to determine if there is the potential for oceanic hydrate-bearing sediments. The seismic dataset covered an area of approximately 1210 km2 of the continental slope. A bottom simulating reflector which generally ran parallel to the sea floor and cut the dominant stratigraphy was observed and mapped over approximately 43% of the study area.
Highlights
As global energy demands rise, it becomes increasingly critical to identify unconventional sources of hydrocarbons
Subsea temperatures and water depths were analysed to confirm that the oceanic sediments were at pressure and temperature conditions conducive to gas hydrate formation
While in the Barents Sea, Bottom-Simulating Reflector (BSR) have been observed on seismic lines in water depths of 345 m [17], in Japan in the Nankai Trough area, Japan, BSRs have been observed in water depth greater than 700 m [16]
Summary
As global energy demands rise, it becomes increasingly critical to identify unconventional sources of hydrocarbons. These are ice-like crystalline substances, composed of gas and water molecules that exist at relatively high pressures (>30 bar) and low temperatures (
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