海相油气地质2016，Vol.21Issue(4)：21-33,13.DOI:10.3969/j.issn.1672-9854.2016.04.003
南沙海域南部第三纪三角洲演化与油气聚集
Tertiary Delta Evolution and Related Hydrocarbon Accumulation in the Southern Nansha Area, South China Sea
摘要
Abstract
Based on seismic sections, drilling data and logging profiles, the spatial-temporal evolution of the deltas that developing in southern Nansha area during Tertiary sedimentation is reconstructed and the dominating factors controlling development of each delta are discussed. It is indicated that the deltas migrated from the west side of the west Baram fault to the east side of the west Baram fault along the coastline (NE-SW) while they advanced with progradation from the land to the sea in the longitudal direction(NW-SE) during Oligocene and Pliocene. Such an evolution process is controlled by eustacy and the migration of orogenic belts which is caused from the scissors-typed subduction of the ancient South China Sea. Source rock, reservoirs and traps can be divided into different stages and zones. By synthetic analysis, three zones of hydrocarbon accumulation relative with the evolution of the deltas are divided: the Balingian delta oil-rich zone in Zengmu Basin, the Baram delta oil-rich zone and the Meligan-Champion delta oil-rich zone in Brunei-Sabah Basin.关键词
南沙海域/曾母盆地/文莱-沙巴盆地/三角洲沉积/沉积演化/油气聚集Key words
Delta sediments/Sediment evolution/Hydrocarbon accumulation/Zengmu Basin/Brunei-Sabah Basin/Nansha waters分类
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雷志斌,杨明慧,张厚和,廖宗宝,张少华,罗晓华..南沙海域南部第三纪三角洲演化与油气聚集[J].海相油气地质,2016,21(4):21-33,13.基金项目
本文受国家科技重大科技专项“大型油气田及煤层气开发”的子课题“南沙海域大中型油气田成藏规律”(编号2011ZX05025-005-03)资助 （编号2011ZX05025-005-03）
