Sealing performance and mechanical response of mud pump piston

IF 4.2 Q2 ENERGY & FUELS

Petroleum Pub Date : 2023-03-01 DOI:10.1016/j.petlm.2021.12.004

Jie Zhang , Wenjie Jiang , Pai Zhu , Ting Zheng

引用次数: 1

Abstract

In order to explore the effect of piston cup structure on its sealing characteristics and mechanical properties, a numerical simulation model of the piston cup in the BW-160 mud pump was established. Effects of work load, friction coefficient and cup structure parameters on the sealing and mechanical properties of the piston were discussed under mud discharge condition. The results show that stress concentration on the root and lips of the cup is becoming more and more obvious with the working load increases. The average contact pressure increases with the friction coefficient increases, but an excessive friction coefficient accelerate the wear of the cup and the heat generation. Effect of the piston lip interference and thickness on the sealing performance of the cup is greater than that of the inner wall width. The piston with groove structure can effectively improve the sealing performance of the piston. The mechanical properties of triangular groove cup are better than that of semicircular and trapezoidal groove cup.

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泥浆泵柱塞的密封性能及力学响应

为了探讨活塞杯结构对其密封特性和力学性能的影响，建立了BW-160泥浆泵活塞杯的数值模拟模型。讨论了在排泥条件下，工作载荷、摩擦系数和杯形结构参数对活塞密封性能和力学性能的影响。结果表明，随着工作载荷的增加，杯根部和唇部的应力集中越来越明显。平均接触压力随着摩擦系数的增加而增加，但过大的摩擦系数会加速杯的磨损和热量的产生。活塞唇过盈量和厚度对杯密封性能的影响大于内壁宽度的影响。采用凹槽结构的活塞可以有效地提高活塞的密封性能。三角槽杯的力学性能优于半圆形和梯形槽杯。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Petroleum Earth and Planetary Sciences-Geology

CiteScore

9.20

自引率

0.00%

发文量

审稿时长

124 days

期刊介绍： Examples of appropriate topical areas that will be considered include the following: 1.comprehensive research on oil and gas reservoir (reservoir geology): -geological basis of oil and gas reservoirs -reservoir geochemistry -reservoir formation mechanism -reservoir identification methods and techniques 2.kinetics of oil and gas basins and analyses of potential oil and gas resources: -fine description factors of hydrocarbon accumulation -mechanism analysis on recovery and dynamic accumulation process -relationship between accumulation factors and the accumulation process -analysis of oil and gas potential resource 3.theories and methods for complex reservoir geophysical prospecting: -geophysical basis of deep geologic structures and background of hydrocarbon occurrence -geophysical prediction of deep and complex reservoirs -physical test analyses and numerical simulations of reservoir rocks -anisotropic medium seismic imaging theory and new technology for multiwave seismic exploration -o theories and methods for reservoir fluid geophysical identification and prediction 4.theories, methods, technology, and design for complex reservoir development: -reservoir percolation theory and application technology -field development theories and methods -theory and technology for enhancing recovery efficiency 5.working liquid for oil and gas wells and reservoir protection technology: -working chemicals and mechanics for oil and gas wells -reservoir protection technology 6.new techniques and technologies for oil and gas drilling and production: -under-balanced drilling/gas drilling -special-track well drilling -cementing and completion of oil and gas wells -engineering safety applications for oil and gas wells -new technology of fracture acidizing