Π型井架的可靠性分析  

Reliability analysis of Π-type masts.

作　　者：刘玉泉[1] 姜民政[1] 张玉斌[1] 

机构地区：[1]大庆石油学院机械系

出　　处：《石油机械》1993年第11期31-35,8,共5页China Petroleum Machinery

摘　　要：针对在用Π型井架存在基础沉陷这一客观现实,提出了井架结构可靠性分析的Monte-Carlo有限元法,并以ZJ-15钻机Π型井架为例进行了计算,结果表明:基础左右不均匀沉陷对构件可靠性指标的影响较大,而基础前后不均匀沉陷的影响相对较小。In the light of the foundation sinkage of Π-type masts occurred in the field, the authors put forward the Monte-Carlo finite element method for analyzing the structural reliability of the mast, and,as an example, conduct an investigation in the ZJ-15 rig mast. It indicates that the left-right unequal sinkage of the foundation exerts considerable influence on the reliability of the mast members, while the influence caused by front-back unequal sinkage is relatively minor.

关 键 词：井架 基础沉降 有限元法 钻井 

分 类 号：TE923.01[石油与天然气工程—石油机械设备]