塔里木油田钻具失效原因  

REASONS OF DRILLING TOOL FAILURE IN TARIM OILFIELD

作　　者：林元华[1] 骆发前[2] 施太和[1] 张智[1] 苏建文[2] 刘远洋[2] 

机构地区：[1]西南石油大学石油管力学和环境行为重点实验室 [2]中国石油塔里木油田分公司

出　　处：《钻采工艺》2007年第5期21-23,共3页Drilling & Production Technology

基　　金：四川省杰出青年学科带头人培养基金(06ZQ026-028);石油科技中青年创新基金(05E7044)资助

摘　　要：塔里木油田山前构造带地质结构复杂,同时强化钻井技术在塔里木油田得到应用,使得钻具在井下的使用环境恶劣,钻具工况复杂,导致塔里木油田钻杆加厚过渡带刺漏和钻具螺纹失效事故较多。文章从钻井工艺、钻杆材料特性等方面着手,探讨了塔里木油田钻具失效的原因。这些原因包括:强化钻井工况对钻杆的技术要求高;高转速引起的共振、钻柱的反转运动和钻杆材料机械性能指标等。Geologic configuration of piedmont structure-lithofacies zone is complex, and the aggressive drilling technology is applied in Tarim Oilfield. So, the service environment of drilling tool in downhole is bad and the operating mode is complex. These induced in transitional zone piercement of drill pipe and many screw thread failures of tool joint. This paper discussed the reasons of drillstring failures in Tarim oilfield considering drilling technology and material characteristic of drill pipe. These reasons include high technology challenge of drill pipe caused by aggressive drilling, covibration and reversal movement of drill string induced by high rotational speed, and mechanical property index of drillstring’s material, etc.

关 键 词：钻具失效 刺漏 螺纹 失效原因 振动 

分 类 号：TE921[石油与天然气工程—石油机械设备]