Results 21 to 30 of about 5,303 (265)
Rock-Breaking Mechanism of Special-shaped PDC Cutter in Heterogeneous Granite
Shiyou jixie, 2022 In order to clarify the rock-breaking mechanism of special-shaped PDC cutter in the difficult-to-drill formations(e.g. granite), the finite element method was used to establish a mesoscopic heterogeneous granite model with different mineral components ...
Liu Hexing +6 more
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Shock and Vibration, 2022 The use of polyenergy water pressure controlled blasting technology in tunnel construction is gradually being promoted, and the technology is often used in hard rock, and the mechanism of rock breaking in fractured sandstone strata is still lacking ...
Qingbiao Wang +9 more
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Shiyou jixie, 2021 The research on rock breaking mechanism of special-shaped non-planar PDC cutter is relatively scarce, and the research on domestic prismatic PDC cutter is even scarcer.
Wei Xiuyan +5 more
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Numerical Simulations and Experiments on Single-Tooth Rock-Breaking
Machines, 2022 The rock-breaking efficiency of a drilling tool directly affects the production costs and progress of foundation construction. It is essential to understand the mechanism of mechanical rock-breaking to improve rock-breaking efficiency.
Heyuqiu Li +5 more
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Numerical Simulation of Rotary Impact Rock-Breaking Process of a Full-Size Drill Bit
Shiyou jixie, 2023 As the key fundamental aspect of rotary impact drilling technology, the mechanism of rock breaking has not been well demonstrated, which limits the application of this technology.To illustrate the rotary impact rock-breaking process, the numerical ...
Yan Yan +5 more
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Applied Sciences, 2023 Button cutters are commonly used in hard rock drilling because the inserted carbide buttons provide exceptional wear resistance, impact resistance, and high strength in challenging geological formations.
Yanan Ma +4 more
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Ultrasonic-Assisted Rock-Breaking Technology and Oil and Gas Drilling Applications: A Review
Energies, 2022 High-efficiency rock-breaking is a problem that has long been studied in the oil- and gas-drilling industry. The successful use of ultrasonic technology in related fields has prompted us to study how to introduce ultrasonic technology into rock-breaking ...
Jinyu Feng +3 more
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The rock cutting simulation of heterogeneous granite using FDEM method
PetroleumMany advanced rock breaking methods are emerged form improving the ROP in deep formation drilling in recent years, such as electric pulse rock breaking, ultrasonic rock breaking and hydraulic rock breaking.
Weiji Liu +4 more
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The rock breaking and ROP increase mechanisms for single-tooth torsional impact cutting using DEM
Petroleum Science, 2019 Torsional impact drilling is a new technology which has the advantages of high rock-breaking efficiency and a high rate of penetration (ROP). So far, there is no in-depth understanding of the rock-breaking mechanism for the ROP increase from torsional ...
Xiao-Hua Zhu, Yun-Xu Luo, Wei-ji Liu
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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
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