石油钻采工艺Issue(5)：5-9,5.DOI:10.13639/j.odpt.2014.05.002
定向钻井PDC钻头切削参数计算方法
Computing method for cutting parameters of PDC bit in directional drilling
摘要
Abstract
The optimized design of PDC bit for directional drilling and steering performance analysis need accurate calculation of cutting parameters like cutting area, cutting volume and cutting arc length of PDC cutting teeth. In line with different drilling tools-bent housing screw motor or pushing rotational steering system, this paper analyzed the motion status of PDC bit at bottom hole, established the trajectory of cutting teeth and cutting curvilinear equation. Also the numerical computing method was established for cutting area, cutting volume and cutting arc length of the cutting teeth according to bit delfection angle, complex bit motion, bit structure parameters and the sequence of cutting teeth, providing a analysis method for computerized optimal design of PDC bit and the analysis of steering performance of PDC bit. Practical calculation shows that the model and method are practical and can be further promoted.关键词
PDC钻头/切削齿/切削参数/运动轨迹/定向钻井Key words
PDC bit/cutting teeth/cutting parameters/trajectory/directional drilling分类
能源科技引用本文复制引用
邹德永,王家骏,于金平,郭玉龙,赵健,卢威..定向钻井PDC钻头切削参数计算方法[J].石油钻采工艺,2014,(5):5-9,5.基金项目
国家“十二五”科技重大专项“薄互层低渗透油藏水平井优快钻井技术”的子课题“薄互层水平井导向PDC钻头优化设计及导向特性研究”（编号05Z12020300）；中国石油大学（华东）校自主创新基金（编号12CX06025A）。 （）
