地质找矿论丛2017，Vol.32Issue(4)：577-587,11.DOI:10.6053/j.issn.1001-1412.2017.04.008
琼东南盆地深水区松南低凸起油气复式聚集条件与成藏模式
The forming conditiong of multiple oil gas accumulation and accumulation model of songnan low uplift in deep-water area of Qiongdongnan Basin
摘要
Abstract
On the basis of drilling,logging,geochemical and seismic data,this paper studies the hydrocarbon accumulation conditions of Songnan low uplift in deep-water area of Qiongdongnan basin,northern South China Sea.Songnan low uplift is located in the central depression Belt and surrounded by five (potential) hydrocarbon rich sags with adequate hydrocarbon source.Multi-type reservoirs occur here,such as the large submarine fans of the early Miocene Sanya formation,the reefs of the Early Miocene-late oligocene Lingshui formation,the fan deltas and coastal sandstone of the early oligocene Yacheng formation and the buried hill weathering crust of pre-tertiary etc.The deep faults that connect source rock in sags,the large sandstone pathway in Yacheng formation and multiple paleo structural ridges constitute the hydrocarbon migration system of this zone.Large and medium structural traps,structural and lithological traps developed in multiple layers.Research shows that the coupling relationship of all accumulation elements makes Songnan low uplift become a unique multiple oil gas accumulation play.And its hydrocarbon accumulation model is neighbour source-lateral migration-multiply formed pool.The main reservoir-forming assemblages are submarine fan of Sanya formation,the reef of Lingshui formation and Sanya formation,and the buried hill of pre-tertiary.And the main controlling factors of hydrocarbon accumulation are reservoir and hydrocarbon migration.The result of this study provides a basis for further exploration of deep-water area in the northern part of the South China Sea.关键词
琼东南盆地/深水区/松南低凸起/生物礁/古潜山/复式油气聚集区/海南省Key words
Qiongdongnan basin/deep-water area/songnan low uplift/reef/buried hill/multiple oil gas accumulation/Hainan分类
能源科技引用本文复制引用
郭明刚,曾小宇,江汝锋,朱继田,孙志鹏,毛雪莲,满晓,何小胡..琼东南盆地深水区松南低凸起油气复式聚集条件与成藏模式[J].地质找矿论丛,2017,32(4):577-587,11.基金项目
“十三五”国家科技攻关重大专项(编号:2016ZX05026-002)“琼东南盆地深水区大中型气田形成条件与勘探关键技术”项目资助. （编号:2016ZX05026-002）
