浅薄层超稠油油藏蒸汽吞吐后开发方式实验  

Experimental Study of Development Process of Shallow and Thin Extra-Heavy Oil Reservoirs Following Steam Stimulation

作　　者：马德胜[1] 郭嘉[2] 李秀峦[1] 昝成[1] 史琳[2] 

机构地区：[1]中国石油勘探开发研究院提高石油采收率国家重点实验室,北京100083 [2]清华大学热科学与动力工程教育部重点实验室,北京100084

出　　处：《新疆石油地质》2013年第4期458-461,共4页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX-05012)

摘　　要：应用三维相似准则设计并建立了高温高压注蒸汽三维实验模型,对影响注蒸汽采油过程的重要油藏参数进行了比例模化,研究了3种不同井网的蒸汽吞吐后注蒸汽采油接替开发方式。实验结果表明,与直井汽驱和水平井注汽直井采油相比,直井注汽水平井采油方式高产期较长,采油速率高,实验采出程度可达到70%.对于油层厚度为10~15 m的浅层超稠油油藏吞吐后期,直井注汽水平井采油是可选的接替开发方式。A 3-D scaled physical model was designed and developed for high temperature and high pressure steam injection process.Pujol and Boberg＇s scaling criteria and horizontal well similarity criterion were used for the modeling of the reservoir parameters and horizontal well parameters influencing steam injection recovery.Three alternative processes with different well patterns following steam stimulation were studied,including vertical well steam drive,vertical well steam injection and horizontal well production,horizontal well steam injection and vertical well production.The experimental results show that the vertical well steam injection and horizontal well production process（or vertical injector-horizontal producer combination） is of longer high-yield period and high oil rate,with experimental recovery percent of 70%.For a shallow extra-heavy oil reservoir with thickness of 10~15 m,the vertical injector-horizontal producer combination is an option for alternative development process after single well steam stimulation.

关 键 词：超稠油油藏 注蒸汽采油 三维比例物理模拟 水平井 

分 类 号：TE345[石油与天然气工程—油气田开发工程]