中国近海基岩油气藏分布特征及其控制因素

基岩油气藏已成为中国海域油气勘探的增储上产的重要领域.基岩油气藏主要发育在裂陷盆地、走滑盆地和前陆盆地,具有"新生古储"的特点.中国海域基岩油气藏分布具有平面广、纵向层系多的特点,储层类型主要以前寒武系变质岩和混合花岗岩、古生代碳酸盐岩、中生代火山岩以及花岗岩侵入体、中生代碎屑岩为主.通过分析海域基岩油气藏空间分布规律...

Characteristics of basement rock hydrocarbon reservoir in China Sea and future exploration direction

Basement rock hydrocarbon reservoir have become an important field for increasing reserves and increasing production of oil and gas exploration in China"s sea areas. Bedrock reservoirs are mainly developed in rift basins, strike-slip basins and foreland basins, and have the characteristics of "new ancient reservoirs". The distribution of basement rock hydrocarbon reservoir in China"s sea area is characterized by wide plane and many vertical strata. The reservoir types are mainly Precambrian metamorphic rocks and mixed granite, Paleozoic carbonate rocks, Mesozoic volcanic rocks, granite intrusions and Mesozoic clastic rocks. The study shows that the controlling factors of basement rock hydrocarbon reservoir are mainly source rock conditions, structural activities, reservoir conditions, source-reservoir contact and sealing conditions.