中文摘要：

地下水受原油污染的问题日益受到人们的重视。根据我国几个主要油田的地下水样测试结果,分析筛选出了易进入地下水中迁移的有代表性的有毒有害原油组分（如苯系物等）。从原油组分的性质与老化、污染途径、水文地质条件对污染的影响等方面讨论了原油组分对地下水的污染机理。基于污染机理提出了防治原油组分污染地下水的对策。

英文摘要：

The problem of groundwater pollution by crude oil is increasingly concerned by people.According to the test results of groundwater samples from several main oil fields,the representative toxic and harmful crude oil components（such as benzene etc.） are analyzed and extracted which easily migrate to groundwater.The pollution mechanisms of crude oil component to groundwater are studied from the aspects of the properties and aging,pollution way,hydrogeological conditions and so on.Based on the pollution mechanisms,the prevention countermeasures of groundwater pollution by crude oil components are proposed.