油气聚集保存的时间性和有效性分析—油气有效成藏期及有效成藏组合研究

ANALYSIS OF THE TIMING AND EFFECTIVENESS OF HYDROCARBON ACCUMULATION AND PRESERVATION

在探索盆地油气成藏规律的研究中，要系统地研究储层流体系列（天然气、原油、沥青及水中有机质）含有油气生成、运移聚集、演化与氧化、破坏与保存等储多方面信息的有机地球化学特征和赋存特征。当将它们与形成上述特征的地质背景（包括构造史、埋藏史、沉积成岩史、孔隙发育史、油气史）动态地结合起来进行研究时，发现油气的聚集和保存具有明显的时间性和有效性，并进而可以获得盆地油气有效成藏期及有效成藏组合的有用信息，从而为现实的油气勘探服务。

In finding the rules of hydrocarbon accumulation in a basin,it is necessary to study systematically the organic geo-chemical characteristics and reservoir characteristics of reservoir fluid series (natural gas,crude oil,asphalt and organic matters in water) carried by the information concerning hydrocarbon generation,migration and accumulation,evolution and oxidation,destroy and preservation, etc. Whenever the above are studied dynamically in association with the related geological settings (including structural history,burial history,diagenesis,porosity development history and hydrocarbon history),it would find that the hydrocarbon accumulation and preservation are obviously characterized by their timing and effectiveness,thus useful information could be acquired for effective hydrocarbon accumulation period and effective accumulation associations in a basin which will serve the exploration.