临南地区非构造圈闭类型及其勘探远景分析

非构造圈闭油气藏对勘探高成熟区挖潜具有十分重要的意义 .针对临南地区的地质特征 ,根据圈闭成因、形态特征将研究区的非构造圈闭分为地层圈闭、岩性圈闭和复合圈闭 3大类 ,通过对其分布和组合形式的分析 ,认为该地区非构造圈闭类型和发育时代受构造控制 .临南地区的非构造圈闭多数具有近油源、易捕集油气成藏的特点 ,加大对其勘探力度 ,对油田增产上储具有重要的意义

Types and Exploration Potential of Non-structural Traps in Linnan Subsag

Non-structural pools play an important role in tapping exploration potential of old oilfields and old oil areas. Based on geological characters of Linnan subsag, according to the geneses and the shapes of the traps in the area, these traps are classified into three types: stratigraphic traps, lithologic traps and recombination traps. Through the analysis of the main types, the distribution of and the combination forms of the traps, it is held that the types, the distribution, assemblage patterns and development ages of the traps are controlled by tectonics. Most non-structural traps in Linnan subsag are close to petroleum generating centers, and they easily catch oil-gas to form reservoir. Increasing exploration powers for the non-structural traps is of importance to increasing production and reserves.