阳信洼陷二氧化碳气成藏控制因素  

Major controlling factors of carbon dioxide reservoiring in Yangxin sag

作　　者：郭瑾[1] 

机构地区：[1]中国石化胜利油田有限公司地质科学研究院,山东东营257015

出　　处：《河南石油》2006年第2期20-22,共3页Henan Petroleum

摘　　要：阳信洼陷是中、新生代形成的断陷盆地,区内火山活动强烈,二氧化碳气资源丰富,气藏分布在深大断裂及火山活动区周围。二氧化碳气来源于地幔,深大断裂、火山-岩浆活动及上地幔隆起等因素控制二氧化碳气成藏。深大断裂作为运移通道;构造运动控制二氧化碳气的释放和成藏期,多期构造运动导致多期岩浆侵入和喷发,同时产生了多期供气及多期成藏过程。古近系沙三、沙四段的多种类型圈闭具有捕获二氧化碳气的有利条件;北东向与北西向断裂体系交汇处及潜山带是二氧化碳气的有利聚集区。Yangxin sag is a fault basin which was formed during Meso-Cenozoic Period. In this basin, volcanic activity occurs violently and it is abundant in carbon dioxide resources. Coming from earth mantle, the resources reser-voiring is controlled by discordogenic fault, magmatism and upper mantle bulge. Discordogenic fault is considered as a migration pathway, while the releasing and reservoi-ring of carbon dioxide are under the control of tectonic movement which led to magmatic intrusion and magmatic exhalation in different periods. Various types of traps in Es3, Es4 of Eogene have the beneficial condition of capturing carbon dioxide gas. The intersection of fracture system and buried hill zones are favorable accumulation area for dioxide reservoir.

关 键 词：阳信洼陷 二氧化碳气 成藏 控制因素 

分 类 号：TE122.2[石油与天然气工程—油气勘探]