干旱区生态环境知识资源中心(Arid): 柴达木盆地英东油田中浅层油藏储层物性影响因素综合分析

Arid

	柴达木盆地英东油田中浅层油藏储层物性影响因素综合分析
其他题名	Influencing Factors of Middle-Shallow Reservoir Property in Yingdong Oilfield of Qaidam Basin
	马凤春 1; 沙鹏 2; 项燚伟 1; 王琳 1; 梅华 1; 唐丽 1; 王靖茹 1; 王宝利 1; 姜营海 1; 柴京超 3
来源期刊	地质科技情报
ISSN	1000-7849
出版年	2019
卷号	38 期号:2 页码:170-178
中文摘要	英东油田是柴达木盆地近几年发现并高效勘探开发的典型长井段多油层断块油藏,针对油藏开发矛盾,利用岩心、扫描电镜、岩石薄片等分析资料,对工区3个含油层段储层物性特征及其控制因素进行了分析,并在此基础上开展了储层分类评价。结果表明:英东油田岩石类型以岩屑质长石砂岩为主,结构成熟度中等,原生粒间孔、溶蚀孔及残余粒间孔是重要储集空间,由上至下粒度逐渐变细,储集及渗流能力逐渐变差;在干旱、半干旱气候条件下,浅水湖平面频繁变化,砂体具有浅水低分异特征,目的层垂向上发育多个相互叠置的间断正韵律,总体上沉积微相、岩矿组分及胶结物含量的不同是影响本区域先天储层物性分布差异的内在条件,而压实作用则是后期储层物性演化的重要影响因素,其对储层孔渗损失作用强于胶结作用,后续油藏综合治理应结合储层分类评价优选水下分流河道、滩坝砂、席状砂等Ⅰ、Ⅱ类有利储层砂体进行措施增产。
英文摘要	Yingdong Oilfield is a typical long interval multiple zone fault block reservoir explored and developed efficiently in recent years in Qaidam Basin.In the light of the contradiction of reservoir development, using the data of core analysis,scanning electronic microscope,thin sections and reservoir properties,this paper analyzes the reservoir physical properties and control factors of three oil-bearing layers in the work area and conducts the reservoir classification evaluation.The results show that the major rock type in Yingdong Oilfield is feldspathic arenite with middle-structural maturity of sandstones,primary intergranular pores,dissolved pores and residual intergranular pores are essential reservoir space,and grain size decreases gradually from top to bottom,the reservoir and seepage capacity gradually become worse.In the arid and semi-arid sedimentary climate conditions,the shallow lake level changes frequently,and sand bodies have the characteristics of shallow water and low differentiation,while the target stratum is developed vertically with multiple overlapping discontinuous positive rhythms.By and large,sedimentary microfacies, original fabric and cement content are internal conditions which control the difference of reservoir physical properties in the region.The main influencing factor of reservoir physical property evolution in later stage is compaction which is stronger than reservoir porosity and permeability loss of cementation.The favorable reservoir sand bodies,such as underwater distributary channel,beach bar sand and mat sand with classⅠ andⅡ,etc,are optimized to increase production for comprehensive reservoir management which should be combined with classification and evaluation of reservoirs.
中文关键词	英东地区 ; 长井段 ; 储层物性 ; 成岩作用 ; 控制因素 ; 沉积相
英文关键词	Yingdong area long channel reservoir physical property diagenesis controlling factor sedimentary facies
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINERALOGY
WOS研究方向	Mineralogy
CSCD记录号	CSCD:6468293
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239035
作者单位	1.中国石油青海油田分公司勘探开发研究院, 敦煌, 甘肃 736202, 中国; 2.中国石油大庆油田有限责任公司第二采油厂, 大庆, 黑龙江 163000, 中国; 3.中国石油青海油田分公司勘探事业部, 敦煌, 甘肃 736202, 中国
推荐引用方式 GB/T 7714	马凤春,沙鹏,项燚伟,等. 柴达木盆地英东油田中浅层油藏储层物性影响因素综合分析[J],2019,38(2):170-178.
APA	马凤春.,沙鹏.,项燚伟.,王琳.,梅华.,...&柴京超.(2019).柴达木盆地英东油田中浅层油藏储层物性影响因素综合分析.地质科技情报,38(2),170-178.
MLA	马凤春,et al."柴达木盆地英东油田中浅层油藏储层物性影响因素综合分析".地质科技情报 38.2(2019):170-178.