考虑切削次序的PDC钻头切削体积计算研究  

A study on cutting-volume computation of a PDC bit accounting for different cutting sequences

作　　者：宋洵成[1] 陈会年[2] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东东营257061 [2]中国石化石油勘探开发研究院德州石油钻井研究所,山东德州253005

出　　处：《广西大学学报（自然科学版）》2006年第B06期163-167,共5页Journal of Guangxi University（Natural Science Edition）

摘　　要：PDC钻头优化设计和力学分析都需要准确计算切削体积,本文在PDC钻头切削齿几何描述的基础上,考虑到钻头旋转钻进时因切削齿周向角不同,即切削次序不同而造成的相互覆盖,建立了切削切削面积、切削体积的计算方法,编制了计算机程序,给出了计算实例.该方法的建立为PDC钻头受力分析、磨损规律研究和PDC钻头的优化设计奠定了理论基础.Accurate cutting volume is necessary to PDC bit optimization design and dynamics analysis. On the basis of description of PDC-cutter geometry, considering overlaps among cutting trajectories of cutters caused by angular position differences while rotary drilling, computation methods of cutting volumes. The method is validated with a case computed by a program based on the computation method. It provides theoretical bases for mechanics analysis, study of wear performances, and optimizing design of PDC bits.

关 键 词：PDC钻头 切削面积 切削体积 

分 类 号：TE921.101[石油与天然气工程—石油机械设备]