Results 91 to 100 of about 47,748 (185)
Rock breakage mechanisms with a PDC cutter
, 1985 Some aspects of chip generation by a polycrystalline diamond compact (PDC) cutter moving through a rock can be understood by examining the shapes of the chips and the fracture patterns in the remaining rock.
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Developmental Medicine &Child Neurology, Volume 68, Issue 10, Page 1432-1439, October 2026.The Hammersmith Infant Neurological Examination (HINE) can be successfully implemented in low‐resource tertiary care settings. Paediatric residents facilitated the implementation of HINE. Early detection of cerebral palsy and referral at an average age of 10.6 months in Ethiopia were achieved.
Selamenesh Tsige Legas +8 more
wiley +1 more source
Finite Element Analysis of Rock-Cutter Interaction in Drilling Operation using Single Cutter PDC Bit
, 2018 Polycrystalline diamond compact (PDC) bit have been used more than 60% for oil and gas drilling operations worldwide. Despite the advantages of the famous PDC bit, the latest PDC bit design configuration is still yet to be proven compatible towards ...
Nawawi, Muhammad Farhan
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Customized Design and Application of High ROP Bit for Deep Shale Gas
Shiyou jixieAs the development scale of shale gas expands， improving the rate of penetration （ROP） of deep shale gas has become the key to improving development efficiency， and designing more targeted bit based on formation characteristics is an effective means to ...
Zhu Xiaohua +6 more
doaj +3 more sources
An Interview with Martha J. Cutter, editor of MELUS
, 2014 NANO assistant editor Rebecca Devers interviews Martha J. Cutter, the former editor of MELUS, about the complexities of processing, reviewing, and publishing a journal that receives in over 300 submissions each year. An Interview with Martha J.
Martha J. Cutter, Rebecca Devers
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, 2018 The development of improved synthesis techniques for polycrystalline diamond compacts (PDC) positively impacted fixed cutter drill bit performance. Coupled with these advances, recent developments in cutter geometry show improved cutter performance in ...
N.. Lyons +6 more
core +1 more source
Mesoscopic Damage Simulation of Sandstone during PDC-Cutter Cutting
Shiyou jixie, 2023 In the process of rock cutting,the cutting parameters of the tool have important influences on the failure mode and rock-breaking efficiency.In order to investigate the mesoscopic damage of sandstone cut by PDC cutter under different cutting parameters ...
Yang Hongyu +4 more
doaj
Mathematical modeling of pdc bit drilling process based on a single-Cutter mechanics
, 1993 An analytical development of a new mechanistic drilling model for polycrystalline diamond compact (PDC) bits is presented. The derivation accounts for static balance of forces acting on a single PDC cutter and is based on assumed similarity between bit ...
Kuru, E., Wojtanowicz, A. K.
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Optimization of Hydraulic Structure of Rotary Cutting PDC Bit
Shiyou jixie, 2020 Few researches have been conducted on the hydraulic structure optimization design of rotary cutting PDC bit. Standard k-ε model and discrete phase model (DPM) are used to simulate the bottom hole flow field of rotary cutting PDC bit and optimize the ...
Cao Yang, Zhang Boyu
doaj
PDC (polycrystalline diamond compact) drill bits are widely employed for rock-breaking in many industries like underground engineering and building constructions. The cutter layout would directly affect the overall performance of the drill bits.
Yuhang He +4 more
core +1 more source