Results 221 to 230 of about 43,494 (242)

The Structure Design of Special-Shaped PDC Reinforced-Cutter and its Finite Element Method Analysis

Applied Mechanics and Materials, 2012
A new structure is proposed to solve the failure mode of PDC cutter created by its mechanical fatigue, crack and diamond table delamination, so as to improve their service life. By applying the finite element method analysis, the force allocation of PDC cutter and multi-face (as known non-planar) designed PDC reinforced-cutter revealed that: the ...
De Rong Zhang, Amy Chang, Chun Yan Kong, Xiao Fei Zhang   +3 more
openaire   +1 more source

Numerical Investigation on the Rock Breaking Performance of Special-Shaped PDC Cutters Combination

58th U.S. Rock Mechanics/Geomechanics Symposium
ABSTRACT: The special-shaped polycrystalline diamond compact (PDC) cutter has good rock breaking performance. This paper adopts the finite element method to conduct research on the rock-breaking capabilities of special-shaped PDC cutters.
Ming Jin, Xuyue Chen, Gengchen Li, Xiaohua Cao, Rong Wang, Mingchi Zhu   +5 more
openaire   +1 more source

Experimental Study on Rock-Breaking Characteristics of Conglomerate with Special-Shaped PDC Cutters Under High Confining Pressure

58th U.S. Rock Mechanics/Geomechanics Symposium
ABSTRACT: The characteristics of conglomerate non-uniformity and complex pore structure lead to severe wear and low rock-breaking efficiency of PDC bits when drilling into conglomerate formations. In this paper, the characteristics of breaking conglomerate of three kinds of PDC cutters such as planar cutter, triple ...
Xiaoyuan Chen, Xinlong Li, Wenhao He, Wei Wang, Zhongwei Huang, Huaizhong Shi, Chao Xiong, Han Chen, Zhenliang Chen   +8 more
openaire   +1 more source

Rock-breaking performance of specially-shaped PDC cutters from a new insight into the damage beneath cutting groove

Geoenergy Science and Engineering, 2023
Weiji Liu, Xun Meng, Xiaosong Weng, Xinyu Shen, Xiaohua Zhu   +4 more
openaire   +1 more source

Study on rock-breaking mechanism of axe-shaped PDC cutter

Journal of Petroleum Science and Engineering, 2021
Wei Liu
exaly  

Preliminary investigation on flexible cutting technology for rotating shaped cutter

Geoenergy Science and Engineering, 2023
Deng Zhang
exaly  

An experimental and numerical investigation on rock cutting behavior of specially-shaped PDC cutter

Journal of Mechanical Science and Technology
Weiji Liu, Kaichuang Deng, Feilong Yang, Yunxu Luo, Xiaohua Zhu   +4 more
openaire   +1 more source

Gas-driven asteroid regolith sampling device based on disk-shaped cutter

Planetary and Space Science, 2022
Qiquan Quan
exaly  

Rock cutting and ROP improving mechanism of specially-shaped PDC cutter in hard brittle granite

Journal of the Brazilian Society of Mechanical Sciences and Engineering
Weiji Liu, Zhihang Liu, Rui Li, Xiaohua Zhu   +3 more
openaire   +1 more source

Microscopic crack propagation and rock-breaking mechanism of heterogeneous granite under impact by special-shaped PDC cutters

Geoenergy Science and Engineering
Xiaohua Zhu, Xinyu Lin, Weiji Liu
openaire   +1 more source