Abstract: Bsed on considering geological environments and physical-chemical conditions this paper studies the regular pattern of vertical distribution of light hydrocarbon,and establishes vertical model of geochemical field of hydrocarhon.This paper has put forward to mathematic thematic method of gas-pools forecast using the model,and blazed a new trail using geochemical information in middle and shallow strata.

摘要： 从地理和物理化学条件入手,在探讨轻烃垂向分布规律的基础上,建立了一维一维轻烃地球化学 场模式.提出利用化学场模式预测天然气藏的数学方法,开辟了利用中浅层地球化学信息的途径.

关键词: 轻烃, 地球化学场, 气藏预测, 勘查地球化学