公开(公告)号：US20190040689A1

公开(公告)日：2019-02-07

申请号：US16155359

申请日：2018-10-09

申请人： CNPC USA CORPORATION

发明人： Zhao Liang ,  Cheng Xiaomin ,  Chen Demin ,  Yang Xiongwen ,  Wang Yonghong ,  Liu Yu

IPC分类号： E21B10/567 ,  E21B10/42

摘要： The present invention provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.