大庆油田薄油层水平井钻井技术  

Horizontal Drilling Technology for Thin Reservoir

作　　者：刘润波[1] 

机构地区：[1]大庆油田钻探工程公司钻井二公司,黑龙江大庆163413

出　　处：《石油钻探技术》2010年第6期53-59,共7页Petroleum Drilling Techniques

摘　　要：随着水平井钻井技术的不断发展和完善,一口水平井可以开发多个连续薄油藏、层叠状油气藏、断块油气藏,从而降低钻井成本,提高单井产能及采收率。根据大庆外围油藏的特点,分析该油田薄油层水平井钻井技术难点为:储层变化大,中靶难度大;油层薄,井眼轨迹控制难度大;扭矩和摩阻大,施工风险大;易形成岩屑床。从井身结构及剖面优化设计、工程技术措施、井眼轨道控制技术、钻井液技术等方面对大庆油田薄油层水平井钻井技术进行了详细介绍。以南219-平320井为例,简要介绍了薄油层水平井钻井技术在大庆油田的应用情况。With the development and improvement of horizontal well drilling technology,one horizontal well can be used to develop the continuous thin reservoir,stack type reservoir and faulted reservoir to reduce drilling cost and to improve well productivity and reservoir recovery.The difficulties of horizontal well in thin reservoir in Daqing Oilfield are that the pay zones are variational and it is hard to hit the target;the reservoir is thin and it is hard to control well trajectory;the torque and drag force are large;it is easy to form cuttings bed,and drilling risk is large.The key technique to use horizontal well to develop thin reservoir are analyzed in this paper.The optimization design,engineering measures,trajectory control and drilling fluid are introduced.The field application in Well Nan 219-Ping 320 in Daqing Oilfield was introduced.

关 键 词：薄层 水平井 井身结构 井眼轨迹 钻井液 随钻测井 大庆油田 南219-平320井 

分 类 号：TE243[石油与天然气工程—油气井工程]