2006•Petroleum Exploration and DevelopmentRequires access

Hydrocarbon accumulation,migration and play targets in the Qiongdongnan Basin,South China Sea

HE Jia-xiong

Abstract

Qiongdongnan Basin is an oil-bearing fault-depression structural basin developed in Cenozoic at the passive continental margin of the South China Sea.The hydrocarbon migration,accumulation and distribution were analogous to the continental fault basin in East China.The hydrocarbon migration,accumulation,distribution,reservoir combination and accumulation controlling factors are quite different for zones because of various hydrocarbon origins and complex source rocks.According to the type of hydrocarbon origins and the 2 reservoir combination modes,self-generation and self-storage and lower-generation and upper storage,hydrocarbon migration and accumulation rules are discussed to provide basis for lowering exploration risks.

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Key concepts: Structural basin, Geology, Fault (geology), Hydrocarbon, Cenozoic, Source rock, Continental margin, Hydrocarbon exploration