金刚石与磨料磨具工程2017，Vol.37Issue(1)：74-77,4.DOI:10.13394/j.cnki.jgszz.2017.1.0015
水平井PDC钻头优化设计与应用
Optimization design and application of PDC bit in horizontal well
徐建飞 1梁学进 1赵晓波1
作者信息
- 1. 中国石油大学(华东)机电总厂,山东东营257061
- 折叠
摘要
Abstract
Compared with conventional polycrystalline diamond compact (PDC) bits for vertical and directional drilling,the gauge is more easy to wear for horizontal PDC bit,which suffers more much impact load and requires better steer ability.According to the horizontal strata characteristics of Honghe oilfield in Ordos basin,the cutter size and back rake angle are optimized through indoor experiment.Based on the characteristics of horizontal well bit,the bit profile is designed to be of shallow inner cone,short external cone and big crown arc.The gauge is enhanced with "active gauge cutter and low friction gauge pad" and the hydraulic structure is enhanced with asymmetric and multinozzle arrangement.The field application shows that the footage of new drill bit is comparing to ordinary bit,the footage is increased by 193％ comparing with that of ordinary bit,and the penetration rate is increased by 132％.关键词
水平井/导向能力/布齿设计/加强保径Key words
horizontal well/steering ability/cutter arrangement design/enhanced gauge分类
矿业与冶金引用本文复制引用
徐建飞,梁学进,赵晓波..水平井PDC钻头优化设计与应用[J].金刚石与磨料磨具工程,2017,37(1):74-77,4.
