钻杆接头PT100耐磨带的敷焊工艺与应用  

Surfacing technology of the PTIOO wearable zone on drill pipe joints.

作　　者：李玉民[1] 李飞[1] 郭建军[1] 李国富[1] 贾建贞[1] 杨国增[2] 

机构地区：[1]中原石油勘探局钻井管具工程处 [2]中原油田分公司第四采油厂

出　　处：《石油机械》2003年第5期20-22,5,共3页China Petroleum Machinery

摘　　要：在深井、超深井、丛式井、大斜度井、水平井的钻井过程中,套管经常被磨穿,造成严重损失,因此对钻杆接头耐磨带提出了更高要求。针对钻杆接头耐磨带现状,开发出新型钻杆接头耐磨带材料PT100及其敷焊工艺。新型钻杆接头PT100耐磨带在钻井应用中表明,(1)与钢质钻杆接头相比,套管磨损减少86％;(2)与碳化钨耐磨带的接头相比,套管磨损降低76％;(3)在大斜度井中,由于摩擦系数减小,大大降低了钻具旋转阻力,扭矩增大30％,节省材料消耗10％;(4)在裸眼钻井环境下,更大程度地保护钻杆接头,减小磨损。Frequent wear of casings requires use of drill pipes with more reliable wearable zones. A new material for the wearable zone of drill pipes, named PT100, is developed, and its surfacing technology is introduced. Application shows that, compared with steel drill pipe joints and carbon-tungsten surfaced joints, joints with PT100 wearable zones can reduce casing wear to a greater extent simultaneously while protecting the drill pipe joints.

关 键 词：石油钻杆 接头 耐磨带 敷焊工艺 应用 

分 类 号：TE921.2[石油与天然气工程—石油机械设备]