A novel bypass downlink system for casing sliding sleeve and its laboratory verification

Wang, Xingming; Wang, Hua; Fu, Yukun; Liu, Haosheng; Chen, Ping

doi:10.1016/j.petrol.2021.108343

Cited by 4 publications

(1 citation statement)

References 12 publications

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“…The flow rate of air compressor can be artificially regulated. In this paper, instead of a pressure boundary [14,15], the inlet adopts a mass flow boundary condition. This boundary condition of the inlet is better aligned with the field condition.…”

Section: Boundary Conditionmentioning

confidence: 99%

Optimization Design of Mining Tri-cone Bit Air Nozzle by CFD

Yan,

Wang,

Tang

et al. 2024

J. Phys.: Conf. Ser.

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Performance of the air nozzle of the mine tri-cone bit directly affects life of bit and rock breaking efficiency. The shape of air nozzle influences performance of mine tri-cone bit. It is necessary to optimize the shape of the air nozzle of tri-cone drill bits. The general specifications of gas mine tri-cone bit were analysed. Working condition and parameters of the air nozzle of the mine tri-cone bit were determined. A three-dimensional model of the air nozzle of the mine tri-cone bit was established. The characteristic geometry and range of air nozzle were determined. The performance index of air nozzle was proposed. An orthogonal experiment table of characteristic geometry of air nozzle was established. The ranking of influence weights of characteristic geometry was obtained. Key characteristic geometry which affects the performance of air nozzle was also obtained. This thesis work helps to improve the working performance of the gas nozzle of the three-cone bit. It can provide some reference ideas for the optimized design of the cone bit

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Section: Boundary Conditionmentioning

confidence: 99%