2016, 35(4) 1052-1057 DOI:     ISSN: 1004-5589 CN: 22-1111/P

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Keywords
South Sumatra Basin
petroleum geology
hydrocarbon distribution
exploration potential
Authors
LU Xiao-Xin
REN Huai-Jian
ZHOU Guo-Wen
LIU Hou-Wu
PubMed
Article by Lu, X. X.
Article by Ren, H. J.
Article by Zhou, G. W.
Article by Liu, H. W.

Petroleum geology features and exploration potential analysis of South Sumatra Basin

LU Xiao-Xin, REN Huai-Jian, ZHOU Guo-Wen, LIU Hou-Wu

1�� Sinochem Petroleum Exploration and Production Co.��Ltd.��Beijing 100031��China; 2�� CNPC Great Wall Drilling Company Ltd.��Beijing 100101��China

Abstract��

Based on the data collected from various sources and applying the theories and methods of basin analysis��this paper summarizes the tectonic-sedimentation evolution and petroleum geology characteristics of South Sumatra Basin��discusses the oil and gas distribution patterns and analyzes its hydrocarbon exploration potential�� The results show that the South Sumatra Basin is a Cenozoic back-arc rift basin��experiencing 5 stages in evolution�� including pre-rifting��rifting��transition��sag and compression�� The principal source rock of the basin is carbona- ceous shale and coal depositing during the transition stage�� The main reservoirs are found in upper Oligocene sand- stones��lower Miocene carbonates and pre-Paleogene crack basement�� Generally��the hydrocarbon distribution is characterized by patterns of gas in the deeper reservoirs��oil and gas in the middle reservoirs��and oil in the shallo- wer reservoirs�� Oil and gas are enriched in the structural traps and structural combination traps�� Faults��favorable sedimentary facies of reservoirs and paleo-highs are the principal factors controlling the oil and gas distribution�� The South Sumatra Basin has good hydrocarbon accumulation conditions and favorable exploration potential�� Faulted slopes surrounding the source kitchens��paleo-highs are the advantageous exploration areas�� In addition��the strati- graphic traps and lithologic traps in the depressions are also prospecting exploration targets�� They should be studied and explored deeply��

Keywords�� South Sumatra Basin   petroleum geology   hydrocarbon distribution   exploration potential  
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