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Numerical studies on rock breaking of single axe-shaped PDC cutter
Journal of Physics: Conference Series, 2023 Abstract For a drill bit, the cutter is the most important part to break the rock. In oilwell drilling, polycrystalline diamond compact (PDC) bit is widely used to shear the rock formation. In this paper, a finite element model with including the axe-shaped PDC cutter and rock formation is developed to study the rock breaking behaviours.
Jianlin Yao, Wei Zhang, Bin Liu
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Energies, 2022 The Permian igneous rock in Shunbei Oilfield exhibits high rock strength, which results in a low rate of penetration (ROP) and shortens the cutter’s service life. It is necessary to analyze and evaluate the rock breaking effect of cutters.
Zhuoxin Dong +6 more
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Numerical modeling on drilling fluid and cutter design effect on drilling bit cutter thermal wear and breakdown [PDF]
, 2022 The unconventional reservoir geological complexity will reduce the drilling bit performance. The drill bit poor performance was the reduction in rate of penetration (ROP) due to bit balling and worn cutter and downhole vibrations that led to ...
Atdayev, Eziz +10 more
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Performance of Roasted Cocoa Bean Winnower for Small Holder Chocolate Producers [PDF]
, 2016 Cocoa bean winnowing has a function to separate cocoa nibs from shell after roasting process of dry bean. Nibs are further processed into fine cocoa liquor by refining process.
Abdurrizal, B. S. (Bayu) +2 more
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PERCEPTION OF HUNTING, GATHERING AND FISHING TECHNIQUES OF THE BAKOLA OF THE COASTAL REGION, SOUTHERN CAMEROON [PDF]
, 2006 While the BaKola (sin. Nkola) are known as one of the "Pygmy" groups in the forest regions of central Africa, their subsistence activities have not yet been described in details, unlike other groups of "Pygmies" in the central African region.
NGIMA MAWOUNG, Godefroy
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Rock Breaking Mechanism and Experimental Study of Axe-shaped PDC Cutter
Shiyou jixie, 2022 Axe-shaped PDC cutter has more obvious rock breaking advantage than conventional PDC cutter. In order to analyze the rock breaking mechanism of the axe-shaped PDC cutter, the finite element simulation and test were used to conduct comparison and force ...
Zou Deyong +3 more
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Numerical Simulation Study on Characteristics of Tight Hard Sand Broken by Axe-shaped PDC Cutter
Shiyou jixie, 2021 The study on the specific rock breaking mechanism of axe-shaped PDC cutter in the existing literatures is relatively less, the rock breaking characteristic test data are mostly for field application data, and there is short of theoretical basis of tooth ...
Zhao Runqi +5 more
doaj
Numerical Simulation on Rock-Breaking Mechanism of Axe-shaped Cutter
Shiyou jixie, 2022 Axe-shaped cutter has good impact resistance and wear resistance,can improve the rock-breaking efficiency of PDC bit,and is widely used in high abrasive and hard formations.In this paper,based on elastic-plastic mechanics and rock mechanics,taking ...
Gong Junyun, Wu Wenxiu, Zhou Zonggan
doaj
Numerical simulation on fragmentation of heterogeneous granite by axe-shaped PDC cutter
Jin'gangshi yu moliao moju gongchengObjectivesPolycrystalline diamond compact (PDC) bits are extensively utilized in the drilling industry. However, conventional PDC cutters are prone to failure when drilling through granite formations, leading to reduced drilling efficiency.
Jiajun LU +4 more
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Shiyou jixieIn drilling engineering， optimized cutter selection for specific formations is critical to enhance rock breaking efficiency. To this end， a Split Hopkinson Pressure Bar （SHPB） apparatus was used to conduct impact-induced rock breaking tests of triangular-
Li Yunzhu +6 more
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