摘要：Due to high hardness and high abrasion, conventional planar polycrystalline diamond compact (PDC) cutters can easily get broken and dull when drilling in (ultra-)deep formations. To enhance the drilling performance, an innovative kind of non-planar PDC cutter, namely, a triangular-shaped PDC cutter, has been developed by altering the 2D planar cutting face into a 3D cutting structure of a triangular trustum of a pyramid. According to the numerical simulation results, the triangular-shaped PDC cutter can easily break hard rocks by a smaller cutting force than the conventional planar PDC cutter. Furthermore, it requires less mechanical specific energy for breaking the same volume of rock than the planar PDC cutter. The triangular-shaped PDC cutter shows great potential in improving the drilling performances of the PDC bit in hard and abrasive formations.

ISSN号：0034-6748

卷、期、页：卷: 92期: 3

发表日期：2021-03-01

影响因子：1.479700

期刊分区（SCI为中科院分区）：四区

收录情况：SCIE（科学引文索引网络版）,EI（工程索引）

发表期刊名称：REVIEW OF SCIENTIFIC INSTRUMENTS

参与作者：曾义金,张正,周俊,丁世东,马广军

第一作者：赫文豪,史怀忠

论文类型：期刊论文

论文概要：曾义金,赫文豪,张正,史怀忠,周俊,丁世东,马广军，Rock-breaking performances of innovative triangular-shaped polycrystalline diamond compact cutter，REVIEW OF SCIENTIFIC INSTRUMENTS，2021，卷: 92期: 3

论文题目：Rock-breaking performances of innovative triangular-shaped polycrystalline diamond compact cutter