摘要
储层中的流体包裹体记录了油气水充注储层时的组成、性质及物理化学条件,在确定油气成藏期次方面得到了较好的应用。对埕北断阶区16口井的流体包裹体特征和均一温度进行了分析,埕北断阶区储层流体包裹体分为盐水包裹体和有机包裹体。根据包裹体的均一温度、地层埋藏史和热史确定该区有2期油气充注,对应的地质时期分别为东营组沉积末期和明化镇组沉积末期至今。结合圈闭发育史和烃源岩生排烃史等分析,认为该区发生2次油气运聚成藏,其中明化镇组沉积末期至今为主要油气成藏期。
Fluid inclusions in reservoir recorded the component,properties and physical -chemical conditions of the water/oil/gas system when they filled in the reservoir.It provides an effective approach to determining the times and stages of hydrocarbon reservoir formation.The characteristics and the homogenization temperature of the fluid inclusions in 16 wells of Chengbei fault terrace zone were analyzed in Dagang Oilfield. The fluid inclusions in the reservoirs in this region include brinish inclusions and organic inclusions.There are two hydrocarbon-infilling stages in the area according to the reservoir burial history,homogenization temperature of the fluid inclusions and thermal history of source rocks.Their corresponding geologic epoch is the end of deposition of Dongying Formation and from the end of deposition of Minghuazhen Formation to present time.Combined with trap development history and hydrocarbon generation and expulsion history of source rocks, we know that there were two times of hydrocarbon accumulation and reservoir formation,among them,the second one was the major stage.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2009年第4期44-46,共3页
Petroleum Geology and Recovery Efficiency
基金
中国石油大港油田分公司科技项目"埕北断坡油气富集规律与资源潜力评价"(DGYT-2006-JS-4681)
关键词
成藏期次
包裹体
均一温度
埕北断阶区
大港油田
times and stages of reservoir formation
fluid inclusions
homogenization temperature
Chengbei fault terrace zone
Dagang Oilfield
