广西百色盆地油气勘探潜力分析

根据圈闭成因分类法,将盆地油气藏类型划分为构造油气藏、地层—岩性油气藏和复合油气藏三大类型及七种亚类型。油气藏类型受盆地不同的含油气结构层系控制,油藏主要围绕盆地主力生油凹陷呈环带分布,盆地不同构造带发育不同的油气藏类型。盆地资源探明率仅16.8%,还有可观的油气勘探潜力。盆地可划分为六个聚油单元,按各个单元的剩余资源潜力的分析,东部坳陷中央断凹—南部斜坡和西部坳陷是盆地今后勘探主要接替区带。

ANALYSIS ON THE EXPLORATION POTENTIAL OF HY-DROCARBON IN THE BAISE BASIN,GUANGXI

Based on formation mechanism of traps, the oil and gas pools in Baise basin can be classified into three types, including structural pool, stratigraphic-lithologic pool and complex pool, and these three types can be further divided into seven subtypes. These types of oil and gas pools are controlled by differ-ent petroliferous structural strata. The distribution of oil and gas pools is around the hydrocarbon generation depression and there are different types of oil and gas pools in different structural units. Up to date, the ratio of proved to total resources in the Baise basin is only 16.8% and the basin is still of great potential for petroleum exploration. The basin can be divided into six ac-cumulating units. According to analysis on resource potential of surplus oil and gas, the central faulted?sag-southern slope of the eastern depression, and the western depression are the main standby areas for petroleum exploration.