随着油气田“精细勘探”的进一步发展,油气藏的精确定年日益成为一种必要。目前可实现油气藏精确定年的方法多依靠放射性同位素体系,如钾—氩、氩—氩和铼—锇等。按照所测定样品的不同,又分为成藏矿物定年、油气包裹体定年和储层有机质定年等。但在实际勘探工作中,受地质定年理论或实验方法学的影响,单一定年技术所提供的年代数据的准确度和精密度仍有所欠缺,在对地质事件的解释上也容易产生一些疑议。在如何实现油气成藏期精确定年这项命题上,不仅需要不断地提高和改进实验分析技术,还需要完善定年方法的基础地质理论,以实现对数据结果的合理解释。油气成藏年代学分析不能仅仅停留在单一的方法技术上,应从各油气藏的特点出发,寻找与油气成藏直接相关的产物,采用多技术手段,获得较全面的年代学信息。 With the further development of oil and gas fields “fine exploration ”, precise dating of reservoirs is increasingly becoming a necessity. At present, the methods that can realize precise dating of oil and gas reservoirs depend on radioisotope systems such as potassium-argon, argon-argon and rhenium-osmium. According to the measured samples are different, is divided into mineral deposits dating, oil and gas inclusions and organic matter dating dating. However, in the actual exploration work, the accuracy and precision of the dating data provided by a single dating technique are still lacking due to the influence of the theory of geological age or experimental methodology, and some doubts are also easily produced in the interpretation of geological events Discuss On the proposition of how to realize the precise dating of oil and gas accumulation period, not only need to continuously improve and improve the experimental analysis technology, but also need to improve the basic geological theory of dating method in order to achieve a reasonable interpretation of the data results. The geochronology analysis of hydrocarbon accumulation can not only stay on a single method and technology, but also search for the products that are directly related to hydrocarbon accumulation from the characteristics of each reservoir, and adopt more technical means to obtain more comprehensive geochronological information.