Results 1 to 10 of about 47,748 (185)
Research on rock breaking mechanism of PDC cutter under the action of ultrasonic vibration. [PDF]
PLoS ONEUltrasonic vibration technology has significant potential for breaking hard rocks. Understanding the optimal frequency for rock breaking under ultrasonic vibration can significantly reduce the cost of rock breaking and extend the service life of ...
Ruocheng Zhang +6 more
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Известия Томского политехнического университета: Инжиниринг георесурсов, 2022 The relevance. Vibrations of a drill string of any origin, arising while drilling a well, lead to a decrease in the quality of the work performed. The known methods of combating this phenomenon are technically and technologically complicated.
Vyacheslav V. Neskoromnykh +3 more
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Artificial Intelligence-Empowered Single-Cell Phenotyping for Rapid, Automated Pathogen Diagnostics. [PDF]
Adv Sci (Weinh)This work presents an integrated diagnostic platform that combines microfluidic single‐cell bacterial detection with artificial intelligence‐driven analysis for rapid antimicrobial susceptibility testing. Single‐cell phenotyping enables assessment of antibiotic response in only a few cell replication cycles, while AI analysis supports precise bacterial
Khadka S, Raahat B, Tragoudas S, Li H.
europepmc +2 more sources
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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Characterizing Rock-Breaking Performance of PDC Cutters via Stability Metrics and Energy consumption in FDEM Simulations [PDF]
Scientific ReportsAs oil production increasingly transitions from shallow to deep formation, the need for efficient PDC cutters to drill through deep hard rock becomes paramount.
Xinrui Wang +6 more
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A Geometrically Transient Platform for Bioelectronic Implants. [PDF]
Adv MaterMinimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Olenik S +13 more
europepmc +2 more sources
Design and Simulation of Bionic Coupling PDC Cutter
Shiyou jixie, 2021 In order to solve the problems of PDC bit such as low working efficiency, easy stratification of diamond and hard alloy and bit balling formed by delayed discharge of rock fragment, the structure of polycrystalline diamond-hard alloy interface and the ...
吴泽兵, 席凯凯, 王杰, 郭禹伦
doaj
Cutting mechanism of a special 3D concave-shaped PDC cutter applicable to the Weiyuan shale
Journal of Petroleum Exploration and Production Technology, 2023 The Weiyuan shale gas field faces problems of long drilling cycles and high development costs. Improving the drilling efficiency of polycrystalline diamond compact bits in shale formations will significantly reduce the overall well cost and duration ...
Xiaohua Ke +5 more
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Experimental Study on Conglomerate Breaking Characteristics of Conical PDC Cutter
Shiyou jixie, 2021 In order to further improve the rock breaking efficiency and the adaptability of drilling hard and complex strata of PDC bit, a comprehensive test device of rock breaking by PDC cutter was developed. The test device was used to conduct experimental study
Xu Weiqiang +6 more
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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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