Experimental study on the impact resistance of interface structure to PDC cutting tooth

Zhang, Fuxiao; Lu, Yong; Xie, Dou; Luo, Hongbo; Shi, Rui; Zhang, Pei

doi:10.1016/j.engfailanal.2022.106503

Cited by 14 publications

(5 citation statements)

References 23 publications

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“…In recent years, in the research on the impact resistance of PDC teeth (composite pieces) in terms of their diamond grain size and content, FuXiao Zhang [4] conducted impact distribution law [16]. This provides theoretical support for the design of large-diameter conical PDC teeth and promotes the popularization and application of large-diameter conical PDC teeth in the field of rotary excavation.…”

Section: Introductionmentioning

confidence: 94%

Structural Design and Analysis of Large-Diameter D30 Conical Polycrystal Diamond Compact (PDC) Teeth under Engineering Rotary Mining Conditions

Xiao,

Zhang,

et al. 2024

Materials

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In the realm of engineering rotary excavation, the rigid and brittle nature of the Polycrystal Diamond Compact (PDC) layer poses challenges to the impact resistance of conical teeth. This hinders their widespread adoption and utilization. In this paper, the Abaqus simulation is used. By optimizing the parameters of the radius of the cone top arc, we analyzed the changing law of the parameters of large-diameter D30 series conical PDC teeth, such as the equivalent force, impact force, and energy absorption of the conical teeth during the impact process, and optimized the best structure of the conical PDC teeth. After being subjected to a high temperature and high pressure, we synthesized the specimen for impact testing and analyzed the PDC layer crack extension and fracture failure. The findings reveal the emergence of a stress ring below the compacted area of the conical tooth. As the radius of the cone top arc increases, so does the area of the stress ring. When R ≥ 10 mm, the maximum stress change is minimal, and at R = 10 mm, the stress change in its top unit is relatively smooth. Optimal impact resistance is achieved, withstanding a total impact work value of 7500 J. Extrusion cracks appear in the combined layer part of PDC layers I and II, but the crack source is easy to produce in the combined layer of PDC layer II and the alloy matrix and extends to both sides, and the right side extends to the surface of the conical tooth in a “dragon-claw”. The failure morphology of the conical teeth includes ring shedding at the top of the PDC layer, the lateral spalling of the PDC layer, and the overall cracking of the conical teeth. Through this study, we aim to promote the popularization and application of large-diameter conical PDC teeth in the field of engineering rotary excavation.

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Section: Introductionmentioning

confidence: 94%

Structural Design and Analysis of Large-Diameter D30 Conical Polycrystal Diamond Compact (PDC) Teeth under Engineering Rotary Mining Conditions

Xiao,

Zhang,

et al. 2024

Materials

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“…Extending the life of PDC bits without compromising their performance is essential in well drilling. The PDC cutter is the main cutting element of a polycrystalline diamond (PDC) bit [20]. During the drilling process, the PDC cutter is subjected to twisting of the drill cord and rock abrasion under high pressure and strong impact [21], [22].…”

Section: A Problems Of Efficient Drillingmentioning

confidence: 99%

Machine Learning Methods Based on Geophysical Monitoring Data in Low Time Delay Mode for Drilling Optimization

et al. 2023

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The purpose of the article is to create an effective method to monitor the state of the drill string and the bit without interfering with the drilling process itself in low-time delay mode. For continuous monitoring of the well drilling process, an experimental setup was developed that operates on the basis of the use of the phase-metric method of control. Any movement of the bit causes a change in the electrical characteristics of the probing signal. To obtain a stable signal from a bit immersion depth of up to 250 m, a frequency of probing electrical signals of 166 Hz and an amplitude of up to 500 V were used; sampling rate (analog-to-digital converter) ADC -10101 Hz. To identify the state of the drill string and the bit according to the graphs of dependences of changes in the electrical characteristics of the probing signal on time, the authors of the article investigated a number of deep learning methods, based on the results of the research, a line of capsule neural network (CapsNet) methods was selected. The authors have developed two modifications of 1D-CapsNet and Windowed Fourier Transform (WFT) -2D-CapsNet. To identify the transition between two rock layers with different properties, WFT-2D-CapsNet showed an accuracy of 99%, which is 2-3% higher than the results of modern rock studies based on measurement-while-drilling (MWD) and logging-while-drilling (LWD) methods. The WFT-2D-CapsNet method unambiguously detects selfoscillations in the drill string and detects the good condition of the bit with an accuracy of 99%.

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“…PDC composite sheet is short for polycrystalline diamond composite sheet. Its production process is sintered from diamond powder (0.5-2.5mm) on cemented carbide matrix at high temperature and high pressure (1 300-1 500 ℃, 5-7 GPa) [1]. At present, there are three experimental methods used to study the impact resistance of PDC composite sheets at home and abroad [2].…”

Section: Introducementioning

confidence: 99%

“…. FuXiao Zhang [1] conducted experiments on PDC of five different diamond particles and analyzed their fracture morphology through scanning electron microscope. Finally, he concluded that the finer the diamond particles and the coarser the WC particles, the better the impact resistance of PDC.…”

Section: Introducementioning

confidence: 99%

Experimental Research on Impact Resistance Test of Polycrystalline Diamond Compact Based on Digital Image Correlation Method

Zhao,

Shi,

2024

AJST

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In this study, the impact resistance of Polycrystalline Diamond Compact (PDC) was studied with DIT drop weight tester and high speed camera. The surface of PDC was analyzed by Digital Image Correlation (DIC). The reason of impact failure of PDC was obtained by using the surface strain field of PDC. The results show that local delamination occurs near the impact point of the polycrystalline layer. The brittle fracture occurs at the maximum tensile strain of the impact resistant composite sheet. The quantitative relationship between the surface strain and the image obtained by DIC can effectively reflect the whole process of PDC composite failure, and can reasonably explain the failure process of PDC composite, and provide scientific research methods for engineering applications.

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Experimental study on the impact resistance of interface structure to PDC cutting tooth

Cited by 14 publications

References 23 publications

Structural Design and Analysis of Large-Diameter D30 Conical Polycrystal Diamond Compact (PDC) Teeth under Engineering Rotary Mining Conditions

Structural Design and Analysis of Large-Diameter D30 Conical Polycrystal Diamond Compact (PDC) Teeth under Engineering Rotary Mining Conditions

Machine Learning Methods Based on Geophysical Monitoring Data in Low Time Delay Mode for Drilling Optimization

Experimental Research on Impact Resistance Test of Polycrystalline Diamond Compact Based on Digital Image Correlation Method

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