易钻浮箍浮鞋的研制及应用  

Development and application of easily drilled float collar or float shoe

作　　者：姜向东 朱和明 孙文俊 

机构地区：[1]德州大陆架石油工程技术有限公司,山东德州253005

出　　处：《石油钻采工艺》2012年第5期107-110,共4页Oil Drilling & Production Technology

摘　　要：针对国内面临的浮箍浮鞋钻除困难的问题及当前对钻井提速的迫切需求,研制了新型易钻浮箍浮鞋。通过开发高分子材料回压阀及采用早强微膨胀抗渗混凝土填充,极大提高了浮箍浮鞋的可钻性和可靠性。易钻浮箍浮鞋在完成地面性能实验评价后进行了工业化推广应用,取得了良好的应用效果,验证了该型浮箍浮鞋的安全可靠性及优良的可钻除性能。As an important indicator for the performance of the float collars and the float shoes, Drillability affects the cycle time and cost of drilling operations directly, as a result, impact on the rate of penetration of the drilling machine. In order to solve the drillabil- ity difficulties domestically, and to satisfy the urgent needs for the drilling speed improving, a set of novel easily drilled float collar and float shoe were developed. By developing the back-pressure valve with high molecular polymer material and the early-strength concrete with micro-expansion, the drillability and reliability of the float collar and float shoe were greatly improved. The easily drilled float collar and float shoe were applied in fields at home and abroad after ground performance testing, which fully verified the safety and reliability as well as the excellent drillablility performance.

关 键 词：浮箍 浮鞋 可钻性 回压阀 混凝土 

分 类 号：TE925[石油与天然气工程—石油机械设备]