Results 51 to 60 of about 203 (110)

Characterizing Rock-Breaking Performance of PDC Cutters via Stability Metrics and Energy consumption in FDEM Simulations

Scientific Reports
As oil production increasingly transitions from shallow to deep formation, the need for efficient PDC cutters to drill through deep hard rock becomes paramount.
Xinrui Wang, Hui Zhang, Zhuoxin Dong, Jun Li, Cheng Qin, Boyuan Yang, Yuting Zhou   +6 more
doaj   +1 more source

Influence of diamond layer chamfer parameters on performance of PDC cutters

Jin'gangshi yu moliao moju gongcheng
Objectives: The precise control of diamond layer chamfer parameters has a complex influence on the comprehensive performance of PDC cutters. This control not only helps to expand ideas in PDC cutter design but also improves the overall efficiency of ...
Suhui ZHANG, Chuanliu WANG, Geng LI
doaj   +1 more source

Simulation on Microscopic Damage of PDC Cutter During Conglomerate Cutting

Shiyou jixie
Conglomerate generally has complex pore structures and severe heterogeneity.Drilling by PDC bit in conglomerate usually exhibits low rock-breaking efficiency, and the rock-breaking process of PDC cutter can hardly be investigated through laboratory ...
Yang Hongyu, Deng Qingyuan, Ye Bailiang, Liu Jianping, Huang Anlong   +4 more
doaj  

Research and Application of Ridged Diamond Element Bit

Shiyou jixie, 2018
To address the problems of cylindrical PDC cutters like thermal wear, impact damage and balling and the required high WOB for conical cutters, the ridged diamond element drill bit technology is studied.
Feng Songlin, Fan Song, Bao Lijun, Hou Baodong   +3 more
doaj  

Investigation of Rock-Breaking Mechanisms Based on the Adaptive Matching Method for Drilling Loads

Applied Sciences
Considering stick–slip vibration and the impact loads formed while drilling in strongly heterogeneous formations or soft–hard interbedded formations, an adaptive matching drilling load method is presented in this paper to form dynamic drilling loads to ...
Huaigang Hu, Guodong Ji, Fangyuan Shao, Liling Zhang, Kai Wei   +4 more
doaj   +1 more source

Numerical Simulation on Rock-breaking and Temperature Characteristics of Sawtooth PDC Cutter

Shiyou jixie
Most of the researches on bionic teeth focus on the wave tooth shape, and there are few reports on the rock-breaking properties of sawtooth cutters.Based on plasto elasticity and Drucker-Prager rock failure criteria, a finite element model of interaction
Wu Zebing, Yuan Ruofei, Zhang Wenxi, He Xiaolin, Liu Jiale   +4 more
doaj  

Analysis on Fluid-Solid-Thermal Coupling Field in Rock Breaking Under Composite Impact Loads Based on Simulation Model

Shiyou jixie
In order to reveal the rock-breaking mechanism of full-size PDC bit under composite impact loads,from the perspective of temperature,a simulation model of fluid-solid-thermal coupling in rock breaking of PDC bit under composite impact loads was built ...
Cao Jifei, Zou Deyong, Li Cheng, Wang Hanxiang, Che Jiaqi, Zhang Weiqiang, Huang Zhe   +6 more
doaj  

Analysis of Torsional Vibration Characteristics of PDC Bit and Design of the Damping Tool

Shiyou jixie, 2017
In order to suppress the torsional vibration of the PDC bit, the torsion model of PDC bit was established.The force on the PDC cutter during rock breaking was analyzed to attain the relationship between WOB and torque.
Zha Chunqing, Liu Gonghui, Li Jun, Xi Yan, Zhang Tao   +4 more
doaj  

Optimization Design Method of PDC Bit Based on Impact Failure Mechanism

Shiyou jixie
To enhance the anti-failure capability of PDC bits and extend bit service life， the main impact characteristics of PDC cutters in different regions of the bit were investigated.
Shi Jiangang Liu Yingbiao Xi Chuanming Guo Yong Wu Desheng
doaj  

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Comparative analysis cutting characteristics of stinger PDC cutter and conventional PDC cutter

Journal of Petroleum Science and Engineering, 2020
Abstract The Stinger PDC cutter has a better performance than the conventional PDC cutter drilling for hard, interbedded and highly abrasive rocks. Although researchers have investigated the cutter's characteristic, such as impact resistance, wear resistance and cutter's life, the cutting behaviors of the Stinger PDC cutter still remains unclear.
Chao Xiong, Zhongwei Huang, Ruiyue Yang, Mao Sheng, Huaizhong Shi, Xianwei Dai, Xiaoguang Wu, Shikun Zhang   +7 more
openaire   +3 more sources