Results 101 to 110 of about 47,748 (185)

Experimental Study on High-Pressure Water Jet Assisted Conical PDC Cutter Breaking of Granite

Shiyou jixie
Deep rocks are hard to abrade and drill,with complex geological conditions for operations.High-pressure water jet assisted drilling technology can effectively extend the service life of drill bits and improve the drilling efficiency in such deep ...
Wang Dayong, Ma Hongbin, Li Xinlong, Xiong Chao, Shi Huaizhong, Huang Zhongwei, He Wenhao   +6 more
doaj  

Test and Numerical Simulation Analysis of Vertical Wheel Assisted Drilling Unit

Shiyou jixie
In difficult-to-drill deep formations,PDC bits struggle to penetrate and have low rock-breaking efficiency,and provide poor bit azimuth stability in steering drilling.This paper presents a PDC bit with a wheel and axle integrated vertical wheel cutting ...
Yang Yan, Huang Kuilin, Song Dongdong, Huang Zequan, Qiu Shunzuo, Hu Jiaqi   +5 more
doaj  

Simulation Study on the Drilling of PDC Bit at Compound Drilling Condition

Shiyou jixie, 2016
The forces on the PDC bit at the bottomhole could impact the PDC bit drilling efficiency and cutter wear.The cutter-rock interactions could be more complex in compound drilling mode.A new PDC bit drilling simulation method for compound drilling based on ...
Zheng Jiawei, Kuang Yuchun, Wang Xia, Zou Ziyou, Chen Yuzhong, Yang Yingxin   +5 more
doaj  

Geometric Evolvement, Simulation, and Test of a Bionic Lateral PDC Reamer Bit Inspired by Capra sibirica Horn. [PDF]

Appl Bionics Biomech, 2022
Chen C, Yan J, Zou Y, Luo H.
europepmc   +1 more source

Numerical Simulation Study on Rock-Breaking and Temperature Characteristics of Chisel PDC Cutter and Full-Bit Drilling

Drilling in deep hard formations poses significant challenges for conventional polycrystalline diamond compact (PDC) cutters, which often suffer from low rock-breaking efficiency and premature failure due to severe cutter-face wear, high thermal loads ...
Tianci Wang, Zebing Wu, Lianghui Song, Hao Wang, Yizhou Yang   +4 more
core   +1 more source

Influence mechanism of polycrystalline diamond compact bit temperature rise based on thermo-fluid-solid coupling. [PDF]

Sci Prog, 2023
Han X, Xue L, Xu J.
europepmc   +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  

Modelling and mechanical characteristics of PDC cutter-rock interaction by combining mixed fragmentation modes with dynamic rock strength

Polycrystalline diamond compact (PDC) bit is one of the most widely used drill bits for improving the rate of penetration in deep oil and gas well and geothermal well.
Guangjian Dong, Yingxin Yang, Xudong Wang, Jianhong Fu, Ping Chen   +4 more
core   +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  

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
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