底部钻具组合三维静力分析  

3-D Static Analysis or Bottom Drillstem Assembly

作　　者：玉珍应 潘欣[1] 马德坤[1] 

机构地区：[1]西北工业大学,西南石油学院

出　　处：《石油机械》1994年第5期19-23,共5页China Petroleum Machinery

摘　　要：考虑钻井液和钻头的工作扭矩对钻柱横向变形的影响，分析了扶正器与井壁间的作用，用传递矩阵方法建立了定向并中底部钻具组合的三维力学模型，研制了相应的计算机程序，能有效地计算钻柱对钻头的横向作用力和确定钻头轴线的方向。In consideration of the effects of the drill fluid and the bit's working torsion on the lateral deformation of the drillstem. an analysis of the interaction between the stabilizers and the hole wall is made, a 3-D mechanical model of the bottom drillstem assembly in directional holes is established by the transfer metrix method,and a relevant computer program is developed, thus the lateral force acted on the bit by the drillstem can be calculated and the orientation of the bit's axis can be effectively determined.

关 键 词：钻具组合 静力分析 三维 

分 类 号：TE921.201[石油与天然气工程—石油机械设备]