华南陆缘南部三水盆地油气地质条件与有利勘探方向  

Geological conditions and favorable exploration potential in Sanshui Basin lying in the south of the continental margin of South China

作　　者：龚晓峰[1,2] 何家雄[1] 张景茹[1,2] 陈胜红 柏杨[1,2] 王晨[1,2] 

机构地区：[1]中国科学院边缘海地质重点实验室,广东广州510640 [2]中国科学院研究生院,北京100049 [3]中海石油有限公司深圳分公司研究院,广东广州510240

出　　处：《石油钻采工艺》2010年第B11期1-6,共6页Oil Drilling & Production Technology

基　　金：国家重点基础研究发展计划项目(编号:2007CB41170501;2009CB219501)联合资助

摘　　要：三水盆地1958年开始油气勘探以来,发现了宝月、竹山岗两个小油气田,根据油气勘探及研究程度预测其石油和天然气地质储量分别为52.3×104 t和6513.5×104 m3。迄今为止,该区通过断断续续开发生产采出的油气数量尚不足其油气储量的10%,因此,三水盆地油气勘探开发尚有一定的潜力。通过全面分析该区油气地质条件,指出中下始新统布心组二段生油、布心组三段下部储油、布心组三段上部及上始新统西布组中下部为盖层所构成的生储盖组合为盆地最理想的油气成藏组合类型,其有利油气勘探方向依次为古近系油气勘探领域、"新生古储"的古潜山勘探领域和晚古生代-早中生代煤成气勘探领域。Since the exploration activity was carried out in Sanshui Basin in 1958,the two fields of Baoyue and Zhushangang have been discovered.Based on relevant information,the predicted geologic reserve of oil and gas is 523,000 t and 65,135,000 m3 respective-ly.To date,accumulated oil-gas output is below 10% of reserves.Therefore,there exists great potential to tap in oil and gas exploration and development in Sanshui Basin.On the basis of overall analysis of the geologic conditions in this area,this paper points out that crude oil originated from second section in Buxin layer of medium-bottom Eocene series and was storaged at bottom of third section.And it is also found that upper part of third section in Buxin layer and medium-lower part of Xibu layer in upper Eocene series are the integration area of crude origination and storage,which is the optimal hydrocarbon reservoir.The priority for beneficial exploration is successively paleogene series formation,buried hill formation and coal-formed gas in Neopaleozoic Earlier-Mesozoic Era.

关 键 词：华南三水盆地 生储盖组合类型 油气勘探领域 有利勘探方向 

分 类 号：P618.13[天文地球—矿床学]