液压随钻扩眼器的研制与典型应用  

Development and Application of Hydraulic Underreamers

作　　者：王德贵 吴小雄 王小红[3] 惠坤亮 游娜 董毅军 徐虹 WANG Degui;WU Xiaoxiong;WANG Xiaohong;HUI Kunliang;YOU Na;DONG Yijun;XU Hong(National Oil and Gas Drilling Equipment Research Center, Baoji 721002, China;BaoJi Oilfield Machinery Co., Ltd., Baoji 721002, China;CCDC Changqing Drilling Company, Xi'an 710018, China)

机构地区：[1]国家油气钻井装备工程技术研究中心,陕西宝鸡721002 [2]宝鸡石油机械有限责任公司,陕西宝鸡721002 [3]川庆钻探工程有限公司长庆钻井总公司,西安710018

出　　处：《机械工程师》2019年第5期127-129,共3页Mechanical Engineer

摘　　要：随钻扩眼工具是解决蠕变地层井眼缩径问题和水泥环厚度低引起固井质量问题的利器。文中介绍了一种在井下复杂环境中能够可靠动作并能够强行收回刀翼的扩眼器产品。该扩眼器一种规格可产生多种扩径范围,井眼扩大率最大为20%左右。随钻扩眼、水平井钻后扩眼等多井次的成功应用表明,该系列扩眼器产品可靠、性能稳健,具有较高的推广应用价值。Underreamer is an important tool to save the problem of shrinkage in the creep formation and the cementing quality problem caused by the low cement sheath thickness. This paper introduces a kind of underreamer which can reliably move in a complicated underground environment and can force back the blade. The reamer can produce a wide range of enlarging diameters, and the maximum hole enlargement rate is about 20%.The successful application of multiboreholes, such as RWD and horizontal well after drilling, shows that the series of underreamers are reliable, mature, and have high application value.

关 键 词：扩眼器 扩眼 刀翼 随钻 投球 

分 类 号：TE242[石油与天然气工程—油气井工程]