公开(公告)号：US20210002961A1

公开(公告)日：2021-01-07

申请号：US16917449

申请日：2020-06-30

申请人： CNPC USA CORPORATION ,  Beijing Huamei Inc.

发明人： Chris Cheng ,  Jiaqing Yu ,  Jianhua Guo ,  Jie Li ,  Xihui Hu ,  Yonghong Wang

IPC分类号： E21B10/567 ,  E21B10/55

摘要： A cutting element comprises a cylindrical substrate, a table bonded to the substrate, a working surface on the top of the table, and a plurality of dimples on the working surface. The table is made of super-abrasive material. The super-abrasive material can be PCD. Surface patterns of the table can reduce contact friction between the rock and the cutting element. Therefore, heat on the table can be reduced and thermal damage to the table is decreased. This results in improved cutting element service life.