油气化探理论、方法与应用

化探是油气勘查的一种手段。利用井中化探的实际资料， 讨论烃类垂向微运移的证据， 论述了综合在气体法、轻芳烃法和同位素法是油气化探的有效方法与指标。阐述油气化探概查、普查、精查及地球化学录井等工作阶段的任务及其地质意义。应用典型探例说明油气化探方法的有效性。

THE THEORY,METHOD AND APPLICATIONGEOCHEMICAL EXPLORATION OF PETROLEUM

Geochemical exploration is a way for oil and gas prospection.On the basis of well geochemical exploration the vertical micro-migrational evidence of hydrocarbon is discussed and it is pointed out that synthetic hydrocarbon gas,light aromatic hydrocarbon and isotopic methods are effective and indicators for petroleum exploration.Petroleum exploration is conducted by reducing prospecting target gradually.The authors have described the tasks and geochemical significance of different stages(reconnaissance,general survey,close survey and geochemical logging)and applied typical exploration examples to show the effectiveness of geochemical methods.