Results 301 to 310 of about 998,789 (338)
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Gas-driven asteroid regolith sampling device based on disk-shaped cutter
Planetary and Space Science, 2022Xu Yang +7 more
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New Prediction Method for ROP Potential of Shaped PDC Cutters
SPE JournalSummary Mechanical specific energy (MSE) is normally used to evaluate the rock-cutting efficiency of shaped polycrystalline diamond compact (PDC) cutters. The lower the MSE, the higher rock-breaking efficiency the cutters and the bits will have, and by default, it is considered that a higher rate of penetration (ROP) can be obtained ...
Wei Liu +4 more
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Enhancing Drilling Efficiency with Flanked Non-Planar Shaped PDC Cutters
International Petroleum Technology ConferenceAbstract This paper examines the performance of a novel Flanked Non-Planar (FNP) shaped Polycrystalline Diamond Compact (PDC) cutter through laboratory and field testing in challenging applications. Testing results demonstrate significant advantages of the new cutter shape, which are further validated by an extensive field test program ...
A. Suleiman +5 more
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Star and flower shaped cells are anything but cookie-cutter
New Scientist, 2010The shape of a mould a cell is grown in determines whether it becomes fat or bone, which could lead to new ways to coax stem cells into specific tissues for transplant into ...
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The Arabian journal for science and engineering, 2023
Xiaohua Zhu, Rui Li, Weiji Liu, Chao He
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Xiaohua Zhu, Rui Li, Weiji Liu, Chao He
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Study on combined cutting and penetration of shaped PDC cutter under bottomhole condition
Geoenergy Science and Engineering, 2023Xianwei Dai +5 more
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Tool Wear Measurement of Ball-End Cutter Based on Shape Mapping
Advanced Materials Research, 2011In milling process, tool wear has important influence on product machining quality. A measuring method for tool wear of ball-end cutter is proposed in order to predict effectively tool wear. The measuring method maps tool wear shape on a block of metal material by milling hole mode after finishing each milling experiment.
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Shaping the Future with PDC Cutter Technology, Progress, and Next Steps
SPE/IADC International Drilling Conference and ExhibitionAbstract Recent improvements in Polycrystalline Diamond Compact (PDC) cutter technology manufacturing capability have led to denser, stronger diamond structures with much greater durability. The step change has made it possible to implement complex geometry PDC cutters on a much wider scale.
P. K. Centala, T. S. Roberts
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