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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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The effects of gravity on rock fractures caused by PDC bits. [PDF]
Sci RepTo understand the crack propagation and chip formation mechanism caused by a PDC bit for various gravity values, a numerical study using particle flow code in 2 dimensions (PFC 2D) is performed. The numerical results indicate that the cracks, caused by stress concentrations, are responsible for chip formation. In addition, the fracture area and cutting
Zhang Q +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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Investigation of the Cross-Cutting Polycrystalline Diamond Compact Bit Drilling Efficiency
Shock and Vibration, 2021 The parallel track scraping principle of conventional PDC bits largely limits the cutting efficiency and working life in deep formations. Cross-cutting polycrystalline diamond compact (PDC) bit may be an efficient drilling tool that increases the rock ...
Chun-Liang Zhang +5 more
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Geofluids, 2022 Polycrystalline diamond compact (PDC) bits experience a serious wear problem in drilling tight gravel layers. To achieve efficient drilling and prolong the bit service life, a simplified model of a PDC bit with double cutting teeth was established by ...
Li-qiang Wang +5 more
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Development and application of hobbing-cone hybrid PDC bit
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023 In order to solve the problems of low ROP and short service life of the bit drilling in deep and hard formation, a new technology of hobbing-cone hybrid PDC bit which has combined the advantages of conventional PDC bit and the hobbing-cone is proposed in
Lian Chen +7 more
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Bionic coupling polycrystalline diamond composite bit
Petroleum Exploration and Development, 2014 Bionic coupling polycrystalline diamond compact (PDC) was designed according to the biological coupling theory, its performance was evaluated by wear resistance experiment, and then the bionic coupling PDC bit was made and used in field drilling test ...
Ke GAO +5 more
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Evaluation of drilling parameters of a PDC bit [PDF]
International Journal of Rock Mechanics and Mining Sciences, 1998 A drilling model for PDC bit is presented herein within steady bit advance hypothesis, with taking into account influence of wear and its evolution. First, friction mechanism on cutter wear flats, is studied by experimental and numerical approach. It is shown to correspond to a relationship between the normal applied pressure to the cutter wear flat ...
D.Nguyen Minh +3 more
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Oil & Gas Science and Technology, 2021 The single-cone bit has become the first choice for slim hole sidetracking and deep well drilling with its unique rock breaking method and high ROP (Rate Of Penetration), with its main failure mode being of early excessive wear of the cutting teeth.
Kong Chunyan +3 more
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Technique of PDC Bit Complexity Identification While Drilling Based on Surface Data
Shiyou jixie, 2022 Identification of downhole PDC bit complexities is one of the main challenges in drilling.Accurate identification of PDC bit complexities such as bit wear and stick-slip vibration is of great significance for improving drilling efficiency and defining ...
Chen Changchang +5 more
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