井中化探成果在构造含油气性评价中的作用

THE APPLICATION OF WELL GEOCHEMICAL EXPLORATION TO HYDROCARBON-BEARING EVALUATING OF STRUCTURE

井中油气地球化学勘查技术自建立以来，在我国主要含油气盆地研究与勘探中均取得了突出的油气勘探成果。井中化探方法是利用钻井岩屑（岩心）进行地球化学分析，研究其中的含油气信息，进而对钻遇地层流体属性做出预测的一种化探方法。本文通过我国不同含油盆地的几口探井案例分析，认为井中化探资料不仅能够预测储层流体属性，而且通过对井中化探资料的系统分析，可更为直观地反映一个构造或一个地区油气资源分布状况。井中油气化探资料在构造含油气性评价中具有重要的参考作用。

Well geochemical exploration analyzes the bore cuttings or cores from geochemistry, extracts the oil and gas information and then predicts the fluid properties of encountered formation. Taken several wells from different oil-and gas-bearing basins in China as examples, it is advised that well geochemical exploration can not only predict the fluid properties of reservoir, but also more directly reflect the distribution of oil and gas in one structure or one area. Data from well geochemical exploration play an important referential role in hydrocarbonbearing evaluation of structure.