扶余油田扶余组曲流河储层单砂体构型刻画及剩余油控制因素

现代地质 ›› 2011, Vol. 25 ›› Issue (2): 308-314.

扶余油田扶余组曲流河储层单砂体构型刻画及剩余油控制因素

韩洁^1,2,王敬瑶²,李军²,蒋有伟²,郑长龙³,王凤刚⁴

1.中国地质大学能源学院，北京100083；2.中国石油勘探开发研究院，北京100083；
3.中国石油勘探开发研究院西北分院，甘肃兰州730000；4.吉林油田公司英台采油厂，吉林松原138000

出版日期:2011-04-25 发布日期:2011-05-13
作者简介:韩洁，女，博士研究生，1973年出生，油气田开发地质学专业，主要从事油藏工程方面的研究工作。 Email：han_jie@petrochina.com.cn

Research of Architecture of Monosandbody in Meandering Reservoir and Control Factors of Remaining Oil on Fuyu Formation，Fuyu Oilfield

HAN Jie^1,2,WANG Jing-Yao²,LI Jun²,JIANG You-Wei²,ZHENG Chang-Long³,WANG Feng-Gang⁴

1.School of Energy Resources,China University of Geosciences, Beijing100083,China；2 Research Institute of Petroleum Exploration ＆
Development, PetroChina, Beijing100083,China；3. Research Institute of Petroleum Exploration ＆ Development-Northwest, PetroChina,Lanzhou,
Gansu730000,China；4.Yingtai Oil Production Plant of Jilin Oilfield Branch Company, PetroChina, Songyuan,Jilin138000, China

Online:2011-04-25 Published:2011-05-13

摘要/Abstract

摘要：

针对陆相曲流河油藏复杂的砂体分布特征及重建地下认识体系关键技术难点，在分析陆相盆地地层建造及曲流河储层形成基础上，运用曲流河储集层层次细分方法，将吉林扶余油田扶余组曲流河油藏分为4个砂层组，13个小层。在小层划分基础上，以曲流河单砂体内部构型刻画为重点，通过综合运用岩心、密井网测井、开发动态等资料，对研究区点坝单砂体层次界面、岩相组合及空间展布与配置关系进行系统研究，探讨了剩余油成因及分布特征。研究结果表明，形成于弱水动力环境的扶余组曲流河油藏点坝单砂体受两级沉积界面控制，形成的侧积体数多在3~4个，侧积面夹角多在3.5°~6.2°，平面规模差异较大。孤立型、搭接型、叠加型和切叠型是储集层单砂体空间配置的主要方式。受点坝侧积泥岩等夹层及注采方式影响，剩余油多分布于点坝、孤立及切叠砂体中，构成了油藏实施二次开发的物质基础。

关键词: 曲流河油藏, 层次细分, 单砂体构型, 空间配置, 剩余油

Abstract:

Aiming at the technical issues of complex sandbody distribution and refounding geological system of meandering-river-facies reservoir, Fuyu reservoir is divided into 4 sand members and 13 layers through studying hierarchical subdivision that is based on building of continental basin and form of meandering-river-facies reservoir. Focused on internal reservoir architecture and based on the research of the core analysis, dense well pattern logs and production performance analysis, the paper discussed hierarchy bounding surfaces, lithofacies associations, spatial distribution and configuration relationships of point-bar monosandbody systematically, meanwhile the distribution of remaining oil was also studied. It is shown that the monosandbody of point-bar which was formed under weak dynamic environment, containing about 3-4 lateral accretion units with 3.5°-6.2° angle and bigger different scale in plane, was controlled by two-level depositional bounding surfaces. Isolating sandbody, lapping sandbody, stacking sandbody and cut-stacking sandbody are the four main types of monosandbodies. The remaining oil is mainly allocated in point bar, isolating, lapping, stacking and cut-stacking monosandbody under the influence of interlayers, lateral accretion surfaces and injector-producer pairs, which formed the foundation of the redevelopment of mature oil reservoir.

Key words: meandering-river reservoir, hierarchical subdivision, architecture of monosandbody, configuration, remaining oil

中图分类号:

TE121.3

韩洁,王敬瑶,李军,蒋有伟,郑长龙,王凤刚. 扶余油田扶余组曲流河储层单砂体构型刻画及剩余油控制因素[J]. 现代地质, 2011, 25(2): 308-314.

HAN Jie,WANG Jing-Yao,LI Jun,JIANG You-Wei,ZHENG Chang-Long,WANG Feng-Gang. Research of Architecture of Monosandbody in Meandering Reservoir and Control Factors of Remaining Oil on Fuyu Formation，Fuyu Oilfield[J]. Geoscience, 2011, 25(2): 308-314.

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