石油实验地质Issue(3)：337-345,9.DOI:10.11781/sysydz201403337
南海北部边缘盆地油气地质特征及成藏主控因素
Hydrocarbon geology characteristics and key controlling factors of marginal basins of northern South China Sea
摘要
Abstract
In the marginal basins of the northern South China Sea, 3 sets of main source rocks developed, inclu-ding lacustrine and transitional source rocks in the rifting period and marine source rocks in the depression stage. There are 3 sets and 2 types of reservoirs, namely continental sandstones, transitional sandstones, marine sand-stones and carbonate rocks. The lacustrine mudstone in the rifting sequence is favorable local seal and the wide-spread marine mudstone ever since Miocene is good regional cap rock. There are abundant traps with the main styles of structural, stratigraphic and compound ones. Hydrocarbon accumulation in the study area is featured by oil and gas coexistence, step-like migration, accumulation around sags, and fault’ s control over hydrocarbon reservoir. Oil and gas distribution in the marginal basins of the northern South China Sea is controlled by source rocks and geothermal heat flows. The transportation system, which is an essential pathway for hydrocarbon migration, also determines the distribution of oil and gas reservoir layers. Besides, structural belts around sags are always the favorable areas for hydrocarbon migration and accumulation.关键词
油气地质/主控因素/油气成藏/边缘盆地/南海北部Key words
petroleum geology/main controlling factor/oil and gas accumulation/marginal basins/northern South China Sea分类
能源科技引用本文复制引用
钟佳,周江羽,张莉,陈昱瑶,叶庆峰,齐同胜,张亚萍,王慧..南海北部边缘盆地油气地质特征及成藏主控因素[J].石油实验地质,2014,(3):337-345,9.基金项目
国家自然科学基金（41372112）和国家海洋保障工程项目（GZH201200511）资助。 （）
