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ADVANCE OF EXPLORATION AND PETROLEUM GEOLOGICAL FEATURES OF DEEP-WATER HYDROCARBON IN THE WORLD
世界深水油气勘探进展与我国南海深水油气前景

Keywords: Deep water hydrocarbon,Petroleum geological feature,Passive continental margin,South China Sea
深水油气
,成藏地质条件,离散大陆边缘,南海

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Abstract:

Exploration in deepwater hydrocarbon has a fast increase in the world.The water depth for drilling well arrived to 3 050 m in 2004.Three giant China oil companies(CNPC,CNOOC,SINOPEC) launch the oil exploration in the deep water region of the South China Sea(SCS).According to the discoveries in the world,all of them are distributed in the passive continental margin.Three giant sedimentary sequences have been deposited in the basin,those are prorifting,rifting and breakup sedimentary sequences.Source rocks are lacustrine and shore facies,as well as afterrifting drift marine limestone and shale.The reservoirs are characterized by the deepwater turbidite sandstones,and rifting sandstone.The hydrocarbon reservoirs preserved in the various trap in the rifting basin,and some unique deepwater turbidite sandstone,and diapir structures.By the geological analysis of the two deep water regions in the SCS,the same petroleum geological features and richful hydrocarbon exist in the SCS.

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