Abstract: A complete engineering system of field measurement, laboratory test and data processing for water chemistry method of geochemical exploration has been set up as a result of laboratory study for a period of more than 20 years. By geochemical analysis of organic components in water such as aromatic hydrocarbon, benzene series, phenol etc.,the promising areas and locations for the further, petroleum exploration can be determined. An example is presented in this paper. The validity and basic model of a geochemical anomaly in an oilfield and the basis of comprehensive evaluation are also presented.

摘要： 经过20多年的实验研究,水化学法油气化探已建立起野外测量-测试化验-数据处理综合整理的完整工程系统。应用水中的有机组分包括紫外吸收光谱、荧光光谱测试芳烃,苯系物、酚、溶解烃气及δ¹³C₁等进行区域油气化探,可以提供油气勘探的有利地区和部位。该文就是其中的一个实例。南襄盆地南阳、泌阳凹陷通过水化学油气化探,发现综合异常区(带)四个,提供了油气勘探的有利地区(带);发现Ⅰ级局部综合异常六个,Ⅱ级局部综合异常七个,Ⅲ级局部综合异常十四个,提供了具体勘探部位。根据化探成果布勘探井五口。文章还就油田上异常的可靠性与基本模式、异常综合评价依据等进行了论述。