摘要
隔夹层的存在使得储集层被分割成多个不连通或半连通的流动单元,从而控制了储集层内部流体的运动。对红河油田川口区带长8油层组储层隔夹层的成因、分类及分布规律进行了研究。红河油田川口区带长8油层组储层隔层以水下分流河道间湾微相泥岩为主,即受到沉积作用控制,在平面上分布广泛,稳定型隔层厚度较大,对上下储层起到了很好的分隔作用;夹层以层理构造中的泥质纹层或条带夹层为主,主要特点是厚度小、分布不规则,储层非均质性较强,这增大了油藏中油气采出的难度。此外,沉积微相是控制红河油田川口区带储层隔夹层分布的主要因素,由河道中心向河道边缘,随着沉积微相的变化,隔夹层频率增大。
Because of interlayers,the reservoir can be divided into several disconnected or half-connected flow units,which control the movement of fluid in the reservoir.Based on the study of restraining barrier and interbeds of the Chang 8reservoir in Honghe Oilfield,this paper focuses on the types,genesis and distribution of the interlayers.The genesis of interlayers in this area include change of its flow direction frequently and the weakening hydrodynamics causes silty clay deposition and the muddy material sediments,etc.The sedimentary microfacies development has influence on the plane distribution of interlayers.
出处
《长江大学学报（自科版）（中旬）》
CAS
2014年第1期48-50,54,共4页
Journal of Yangtze University(Nature Science Edition)
关键词
红河油田
辫状河三角洲
夹层
隔层
Honghe Oilfield
braided-delta
restraining barrier
interbed
