--> Abstract: Subsidence History and Its Impacts to Hydrocarbon Potential of The Song Hong Basin, Vietnam; #90063 (2007)

Datapages, Inc.Print this page

Subsidence History and Its Impacts to Hydrocarbon Potential of The Song Hong Basin, Vietnam

 

Bui, Huyen1, Jack Dvorkin1, Amos Nur1 (1) Stanford University, Stanford, CA

 

The Song Hong (Yingehai) basin, the largest basin in Vietnam can be classified as a typical pull-apart basin filled with more than 15,000 meters of Tertiary sediments at its depocentre with predominantly clastics, Miocene carbonate shelf and also some volcanics in Pliocene- Pleistocene strata at the southern part. Its tectonic evolution and rhomboidal shape is restrained by the strike-slip displacements of the Red River fault, the spreading of the South China Sea and consequent upon many tectonic phases such as: early rifting, late rifting and post rifting, forming mainly structural elements. The Song Hong basin has been considered as high potential of gas. Though many wells were drilled in the basin resulting in 20 oil and gas shows, there are only two minor gas fields in production by 2003. In addition to understanding on its hydrocarbon potential, this research revealed the subsidence history of the Song Hong basin insights from well log, geochemical data and seismic interpretation. Basin modeling analysis identified two mainly oil generated phases in the Song Hong basin at about 15 Ma and 5 Ma ago with small amount of oil but very good amount of gas. The results help to evaluate the source rocks capability, maturation and migration to the trap of the source rocks, in order to evaluate the hydrocarbon potential of the Song Hong basin.

 

AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California