Study addresses complexities of South China Sea prospective plays

Frogtech Geoscience has issued a new basement-focused study of the hydrocarbon potential in the geologically complex South China Sea and the Gulf of Thailand.

South China Sea SEEBASE study
South China Sea SEEBASE study

Offshore staff

CANBERRA, AustraliaFrogtech Geoscience has issued a new basement-focused study of the hydrocarbon potential in the geologically complex South China Sea and the Gulf of Thailand.

The South China Sea SEEBASE study includes new, terrane-based plate reconstructions of the Proto-South China and provides insights into the tectonic evolution of the region.

Re-definition of the Paleotethys suture, a fundamental tectonic structure, suggests that it formed a significant regional rheological and thermal boundary which influenced the evolution of hydrocarbon-rich basin systems over time.

The resultant structural and tectonic model is said to give petroleum explorers a new understanding of important early rift depocenters that may contain potential source rocks, and the impact of shifting sediment provenance.

Frogtech adds that the South China Sea region has a complex history of rifting, culminating in hyperextension and local mantle exhumation. These processes affected the nature and evolution of associated basins and hydrocarbon systems.

The study is said to provide a framework for understanding the development of petroleum system elements (reservoir/source/seal) and processes over time, and should assist development of new play concepts.

Frogtech adds that its integrated use of potential field and geological datasets to provide a hand-contoured, depth-to-basement structural model overcomes the challenge of seismic imaging of deep basin geometries - particularly in parts of the South China Sea where very thick sediments and extensive carbonates impede resolution of structures at depth.

02/20/2017

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