基于ABAQUS的定向钻穿越钻具受力分析  

Stress analysis of ABAQUS-based directional drilling tools

作　　者：马晓成[1] 李国辉[1] 杨春玲[1] 任亚龙[2] 

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]中国石油天然气管道局,河北廊坊065000

出　　处：《油气储运》2013年第5期489-492,共4页Oil & Gas Storage and Transportation

摘　　要：定向钻导向孔钻进和扩孔过程中,钻杆经常由于疲劳损伤而断裂。在缺少相关规范要求的情况下,对于某超长距离定向钻穿越工程,运用大型有限元软件ABAQUS,建立了钻柱-孔洞全孔模型,综合考虑钻柱服役环境、岩土对钻柱的摩擦碰撞及泥浆的浮力等作用,分别对导向孔钻进、扩孔钻进两种工况下的受力情况进行了有限元分析,对钻杆寿命进行了安全性评价。模拟结果表明:超长定向钻导向孔钻进宜采用对穿;在导向及扩孔过程中,钻杆使用时间超过288h后,宜更换钻杆。采取有限元法对钻杆受力进行分析,可以有效指导定向钻穿越施工。During the process of pilot hole drilling and reaming of directional drilling, the drill rod often breaks off due to fatigue damage. In the case of the absence of relevant regulatory requirements, the authors established a drilling string-hole whole hole model with large finite element software ABAQUS for an ultra-long directional drilling project, and performed finite element analysis for stress states under two working conditions, that is, pilot hole drilling and reaming, through comprehensive consideration of the drilling string service environment, friction collision of rock and soil to drill string, and flotation of mud, etc., and carried out safety evaluation of drill rod. The simulation results show that the pilot hole drilling of super-long directional drilling is suited to the use of opposite crossing technology. If the drill rod has been used for more than 288 h in directional drilling and reaming process, it should be replaced. Performing stress analysis for drill pipe with finite element method can effectively guide directional drilling construction.

关 键 词：ABAQUS软件 定向钻 导向孔钻进 扩孔 钻杆寿命 疲劳损伤 安全性评价 

分 类 号：TE832[石油与天然气工程—油气储运工程]