江陵凹陷不同期次断层与油气成藏的关系  

The Relationship between Faults and Hydrocarbon Accumulation at Different Stages in Jianglin Depression

作　　者：陈金荣[1] 施昭彤 黄华[1] 彭伟[1] 陈晓[1] 

机构地区：[1]中石化江汉油田分公司勘探开发研究院,湖北武汉430223 [2]中国石油大学(北京)地球科学学院,北京102249

出　　处：《石油天然气学报》2014年第7期27-31,4,共5页Journal of Oil and Gas Technology

摘　　要：江陵凹陷目前发现的油气藏主要是沿着构造脊和断裂带分布,其运移与聚集同断层的活动密切相关。通过分析断层的展布特征和主要活动时期,结合烃源岩等研究成果,深入剖析了断层活动与油气的运移、聚集之间的配置关系。研究认为,早于古近系沙市组、新沟嘴组、荆沙-潜江组沉积期发育的断层,所控制的圈闭有利于油气成藏;古近系沙市组、新沟嘴组、荆沙-潜江组沉积期发育的并持续运动至古近系的断层,所控制的圈闭不利于油气成藏;新近系发育的逆断层破坏油气藏。The reservoirs discovered in Jiangling Depression were mainly distributed along the tectonic ridge and fractural belt.Their migration and accumulation was closely related with faults'movement.By analyzing distribution characters and predominant activity periods of faulted zones and combined with the study result of source rocks,the configuration relation between faulted zone movement and hydrocarbon migration and accumulation was deeply studied.Study shows that the traps controlled by faulted zones developed in the sedimentary period of Cretaceous Shashi Formation,Xingouzui Formation,Jingsha-Qianjiang Formation are beneficial for hydrocarbon accumulation,the traps controlled by faulted zones developed in the sedimentary period of Cretaceous Shashi Formaton,Xingouzui Formation,Jingsha-Qianjiang Formation and their movement being continuous to Palaeogene System are unbeneficial for hydrocarbon accumulation.The reversed faults developed in Neogene System would destroy the hydrocarbon accumulation.

关 键 词：江陵凹陷 断层活动 油气分布 构造圈闭 

分 类 号：P618.13[天文地球—矿床学]