蒸汽泄油水平井与直井连通技术的研究与应用  

SAGD Technology and Its Application to Connecting Horizontal to Vertical Wells

作　　者：夏维[1] 夏宏南[1] 高娅[1] 贺超[1] 

机构地区：[1]长江大学石油工程学院,湖北武汉430100

出　　处：《天然气技术与经济》2013年第5期40-42,78-79,共3页Natural Gas Technology and Economy

基　　金：国家科技重大专项"大型油气田及煤层开发"之课题6"连续油管装备与应用技术"(2011ZX05036-006)

摘　　要：蒸汽泄油双水平井与直井联合开采浅层稠油的技术方法能够有效解决水平井开采沉没度不够、油气井维护困难等诸多难题,有利于提高浅层稠油油藏的开发效率。针对该技术中存在的两井连通难题,在借助磁导航技术精确定位的基础上,利用在直井特定井段套管段铣和扩眼手段保证了水平井与直井的有效连通。介绍了蒸汽泄油水平井与直井连通技术,该技术在新疆油田现场应用获得成功。Steam assistant gravity drainage(SAGD)technology, which not only combines both horizontal and vertical wells but also exploits shallow heavy oil, can effectively solve some problems, including insufficient submergence during horizontal- well production, and difficult maintenance for oil and gas wells. Moreover, this technology may increase development efficiency for shallow heavy oil reservoirs. However, a problem of connection of both horizontal and vertical wells will occur. So, in this study, two ways for special interval are adopted to ensure effective connection in a vertical well, including casing milling and borehole enlargement. This technology was applied to Xinjiang oilfield and obtained a success.

关 键 词：浅层稠油 蒸汽泄油 段铣 扩眼 连通技术 

分 类 号：TE243[石油与天然气工程—油气井工程]