Conference Paper

A new depositional model for the Neogene of the Columbus Basin, Trinidad & Tobago

Conference Paper

A new depositional model for the Neogene of the Columbus Basin, Trinidad & Tobago

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Abstract

The Tertiary Columbus Basin is one of the most proliferous petroleum basin of the Caribbean. It is located mostly in the offshore of Trinidad and Tobago. For a long time, the origin of most of Columbus basin sandstone reservoirs was associated to littoral deltas and shoreface environments. Nevertheless, recent regional studies integrating a huge volume of data from cores and outcrops allowed an alternative interpretation of these sandstone bodies. A detailed facies analysis was performed, suggesting an origin related to sustained hyperpycnal flows. The growing advance in the knowledge of hyperpycnal flows and their related depositional systems has provided new perspectives for the understanding of sandstone reservoirs. This contribution confront rock evidences against the previous proposed models and gives clues about its importance for defining future exploration opportunities.

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