胜利油田小井眼定向套管开窗侧钻技术  

Casing Sidetrack in Slim Wellbore in Shengli Oilfield

作　　者：李广[1] 韩强[2] 赵海艳 徐忠体[1] 

机构地区：[1]胜利石油管理局井下作业公司,山东东营257077 [2]胜利石油管理局钻井工艺研究院,山东东营257017 [3]中国石油渤海钻探大港技术服务公司,天津大港300280

出　　处：《石油钻探技术》2008年第4期75-78,共4页Petroleum Drilling Techniques

摘　　要：胜利油田为了降低钻井综合成本,延长老井生产寿命,提高原油采收率,达到增产、稳产的目的,研究应用了小井眼定向套管开窗侧钻技术,在胜利油田1999-2007年间500多口定向井中的应用表明,该技术能明显提高油井产能,累计增油73×104t。从套管开窗、定向侧钻和固井技术三方面详细介绍了小井眼定向套管开窗侧钻的施工工艺及注意事项,指出适用于小井眼套管开窗侧钻井的钻头选型困难是影响机械钻速的主要因素,应根据地层特性有针对性地设计钻头,从而提高综合经济效益。Casing sidetrack in slim wellbore has been investigated and applied in Shengli Oilfield to reduce drilling cost, prolong old wells＇ production life, improve oil recovery. From 1999 to 2007, the application results of this technique in more than 500 directional wells indicate that this technique improved the oil recovery significantly and the cumulative incremental oil production is 73 × 10^4 t. The application procedure and the associated challenges of this technique were presented in detail from side tracking and directional drilling to cementing operation. The difficulty of proper bit selection is the main factor affecting drilling speed. The bit should be designed according to the formation characteristic to improve comprehensive economic benefits.

关 键 词：小井眼 套管开窗 定向钻井 胜利油田 

分 类 号：TE243[石油与天然气工程—油气井工程]