油气地球化学勘探技术发展现状与方向

Present Situation and Development Trend of Geochemical Exploration for Oil and Gas

地表油气地球化学勘探作为一种直接找油方法,经过了曲折的半个多世纪的发展,已经逐步得到油气勘探工作者的承认,并在整个油气勘探程序中占据了它应有的地位;二连盆地吉尔噶郎图凹陷的稀油勘探和塔里木盆地大宛齐地区浅层油气藏的滚动勘探应用实例表明,该方法在浅层油气田勘探领域具有较好的勘探效果。认为K-V指纹法是一项在油气田目标详查阶段可发挥很好作用的实用技术,而井中化探方法是油气化探一个新的、具有实效的应用方法,在储层预测和评价方面可发挥其他方法不可替代的作用,具有良好的发展前景。

Surface geochemical exploration for oil and gas is a direct hydrocarbon-detecting method. It has experienced half a century＇s joys and sorrows and been gradually admitted by people specializing in hydrocarbon exploration and exploitation. Application of this method to the exploration for light oil in the Kirgelangtu depression of the Erlian basin and for shallowly-seated hydrocarbons in the Dawanqi area of the Tarim basin has verified its effectiveness in shallowly-seated hydrocarbon exploration. The K-V fingerprint technique can play an effective role in detailed survey; the borehole geochemical survey is a new and efficient method in the reservoir prediction and evaluation.