大民屯凹陷静北地区高蜡原油成藏条件分析  

Reservoir accumulation conditions of high wax crude oil in northern Jingbei area, Damintun sag

作　　者：王树昆[1] 

机构地区：[1]中国石油辽河油田分公司勘探开发研究院,辽宁盘锦124010

出　　处：《石油地质与工程》2018年第3期25-27,32,共4页Petroleum Geology and Engineering

基　　金：国家油气重大专项"渤海湾盆地精细勘探关键技术"(2011ZX05006)

摘　　要：对大民屯静北地区高蜡原油的烃源岩分布、油源对比和构造等成藏条件进行了分析,认为安福屯和胜东洼陷是其两大油源供给区,沙四段油页岩和高蜡油具有亲缘关系,是高蜡油的主力烃源岩;沙一、沙二到东营中期是该区的主要成藏期;沙河街组砂层、基岩不整合面和断层是该区油气运移的主要通道;与烃源岩接触、储盖配置关系较好的基岩潜山是今后应重点关注的勘探领域。Through the analysis of reservoir accumulation conditions, such as the hydrocarbon source rock distribution, oil source contrast and structure of the high wax crude oil in the northern Jingbei area, Damintun sag, it is concluded that Anfutun and Shengdong depressions are two large oil source supply areas, the oil shale of Es4 formation and high waxy oil have a genetic relationship, and the oil shale of Es4 formation is the main source of high–paraffinic oil source rock. The main accumulation period of the area is from Es1–2 to Dongying mid–term. The sand channel, unconformity of bedrock and faults in Shahejie formation are the main channels for hydrocarbon migration in this area. The bedrock buried hill which is in contact with source rock has a good relationship of reservoir, and the cap rock is the exploration target in this area.

关 键 词：大民屯凹陷 静北地区 烃源岩 高蜡原油 生物标志化合物 

分 类 号：TE112.114[石油与天然气工程—油气勘探]