南华北地区二叠系烃源岩生烃潜力评价  

Hydrocarbon Generation Potential Evaluation of Permian Source Rocks in the South of North China

作　　者：林小云[1] 蒋伟[1] 陈倩岚[1] 

机构地区：[1]油气资源与勘探技术教育部重点实验室(长江大学)长江大学地球科学学院,湖北荆州434023

出　　处：《石油天然气学报》2011年第6期1-5,共5页Journal of Oil and Gas Technology

基　　金："全国油气资源战略选区调查与评价"专项(XQ-2007-02-3-3)

摘　　要：南华北地区二叠系各类烃源岩地化特征表明,烃源岩主要发育于太原组、山西组和下石盒子组,其中煤系泥岩为主要的有效烃源岩,生烃潜力较好。从不同构造单元烃源岩热演化分析,襄城凹陷、谭庄-沈丘凹陷和倪丘集凹陷演化程度适中,且存在二次生烃,生烃潜力较好。结合动静态烃源岩特征,认为南华北地区二叠系烃源岩生烃潜力较好的为主要分布在谭庄-沈丘凹陷的太原组、山西组和下石盒子组;倪丘集凹陷的山西组合下石盒子组;襄城凹陷的太原组、山西组和下石盒子组。Geochemistry characteristics of Permian source rocks indicated that the source rocks were mainly developed in Taiyuan Formation,Shanxi Formation and Xiashihezi Formation,where coal measures mudstone was the main effective source rock with good hydrocarbon generating potential.Thermal evolution analysis of the source rocks in different structural units indicate that Xiangcheng Depression,Tanzhuang-Shenqiu Depression and Niqiuji Depression were in a moderate evolution level with secondary hydrocarbon generation and good hydrocarbon generating potential ability.Based on the characteristics of dynamic and static source rock analyses,it is considered that the preferable Permian source rocks are mainly distributed in Taiyuan Formation,Shanxi Formation and Xiashihezi Formation of Tanzhuang-Shenqiu Depression;Shanxi Formation and Xiashihezi Formation of Niqiuji Depression;Taiyuan Formation,Shanxi Formation and Xiashihezi Formation of Xiangcheng Depression.

关 键 词：南华北地区 二叠系 烃源岩 生烃潜力评价 

分 类 号：P618.13[天文地球—矿床学]