Results 1 to 10 of about 15,062 (254)
Research progress of 3D printing PDC and PDC bit
Jin'gangshi yu moliao moju gongcheng, 2023 PDC bit has become the preferred type of drill bits in the field of oil and gas exploration. The ever-increasing performance requirements of PDC bits, especially the drilling efficiency, have brought great challenges to the drill bits. The improvement of
Jingjing WU +5 more
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New Progress and Future Development of PDC Bit
Shiyou jixie, 2016 A series of new PDC bits have been developed in foreign countries in order to raise rock breaking efficiency, extend bit service life and reduce trips, drilling cycle and drilling cost.
Pan Jun, Wang Minsheng, Guang Xinjun
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Study on Mechanism of Stick–Slip Vibration Based on Torque Characteristics of PDC Bit [PDF]
Applied SciencesStick–slip vibration (SV) of drill string systems is the main cause of fatigue failure of PDC bits under complex drilling conditions. Exploring its mechanism is helpful for identifying the causes of bit failure and developing preventive measures to ...
Lijun Li, Chunliang Zhang, Aixuan Wu
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A study on PDC drill bits quality [PDF]
Wear, 2013 The quality of innovating PDC (Polycrystalline Diamond Compact) bits materials needs to be determined with accuracy by measuring cutting efficiency and wear rate, both related to the overall mechanical properties. An original approach is developed to encompass cutting efficiency and wear contribution to the overall sample quality.
Yahiaoui, Malik +4 more
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Modelling of an effluence of drilling fluid from hydraulic holes of PDC bits [PDF]
Компьютерные исследования и моделирование, 2013 In this article some results of mathematic modelling of an effluence of drilling fluid from hydraulic holes of PDC bit are presented. Distribution of velocity and pressure in borehole bottom are received, and erosion of interior surface of hydraulic ...
Vitaly Anatolevich Bruyaka +3 more
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Experimental Study on Granite Broken by PDC Bit under High Temperature and High Pressure
Shiyou jixie, 2021 As the exploration and development of oil and gas gradually advance to the deep layer, the formation temperature and pressure keep increasing. The efficiency of PDC bit breaking deep hard rock under high temperature and high pressure is reduced, and the ...
Shi Huaizhong +5 more
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PDC Bit Hydraulic & Mud Rheological simulation to model pressure drop across Bit [PDF]
MATEC Web of Conferences, 2017 During fluid flow from larger to smaller diameter pipes, a drop in pressure is experienced. High pressure drop across bit indicated high energy loss in the hydraulic system and also a setback to ROP performance. This is inefficient and pressure pumps would have to be of bigger sizing to make up for the losses. Present form of pressure drop models is in
Kai Sheng Ong +2 more
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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 +5 more
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Research status on rock-breaking mechanism and performance testing methods of PDC bit cutters
Jin'gangshi yu moliao moju gongcheng, 2023 Polycrystalline diamond compact (PDC) drill bits are one of the main rock breaking tools in drilling engineering. The performance indexes, such as rock breaking efficiency, wear resistance, thermal stability and impact resistance of PDC bit cutters, have
Yancao LI
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Study on the Bottom Hole Flow Field Analysis Platform of PDC Bit
Shiyou jixie, 2017 The conventional numerical simulation of hydraulic performance of the bottom hole flow field of PDC bit has the shortcomings like high threshold, time-consuming and repetitive work.
Kuang Yuchun +4 more
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