Analysis of Operating Performance Parameters of the Internal Twin Screw Pump

Ye, Zhewei; Zeng, Zhiwei; Lei, Cong; Zhao, Yao; Pang, Yuanlin

doi:10.1007/s40997-023-00719-w

Cited by 2 publications

(1 citation statement)

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“…At present, well sites generally use screw motors with high driving torque or manual pulling to solve the problem of starting screw pumps. 1,2 However, research on key technologies for reducing wear and drag on the stator and rotor mating surfaces of screw pumps have mostly focused on pump structure, 3,4 rotor surface coating, 5 and rubber stator surface modification. [6][7][8] Moreover, for different oil wells, the composition of the oil and the corrosive medium contained need to be tested, requiring a variety of rubber formulations to manufacture the bushings, which consumes a lot of human and material resources.…”

Section: Introductionmentioning

confidence: 99%

Study of the effect of laser textured rotors on the starting performance of metal–rubber mating pairs under different lubricating media environments

Wang,

Huang,

Qian

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part J:

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To solve the problem of premature failure of the rubber stator of the screw pump due to wear, reduce the frictional resistance torque of the screw pump to solve the problem of difficulty in starting after the shutdown of the screw pump production system in Daqing Oilfield. The effects of micron dot texture and lubricating medium on the tribological properties of 42CrMo metal and acrylonitrile–butadiene rubber mating surfaces were studied by theoretical analysis and tribological tests. The friction coefficient, wear amount, and rubber wear morphology were used as the measurement indexes of drag reduction, wear resistance, and wear degree, respectively. The results showed that the best combination of texture area ratio and the lubricating medium was 10% silicone grease, the friction coefficient and wear amount were reduced by 11% and 10.7%, respectively, compared with untextured, and the main order of chip storage and oil supply effect was 10% > 5% > 15%.

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Section: Introductionmentioning

confidence: 99%