Wear-life experiment of drilling mud pump piston with dimple-shaped bionic surface

doi:10.7623/syxb201702011

Acta Petrolei Sinica ›› 2017, Vol. 38 ›› Issue (2): 234-240.DOI: 10.7623/syxb201702011

• Petroleum Engineering • Previous Articles Next Articles

Wear-life experiment of drilling mud pump piston with dimple-shaped bionic surface

Sun Yiwen¹, Ru Shaofeng², Cong Qian^1,3

1. MOE Key Laboratory of Bionic Engineering, Jilin University, Jilin Changchun 130022, China;
2. Mechanical and Electrical Engineering College, Hainan University, Hainan Haikou 570228, China;
3. State Key Laboratory of Automotive Simulation and Control, Jilin University, Jilin Changchun 130022, China

Received:2016-08-05 Revised:2016-12-30 Online:2017-02-25 Published:2017-03-08

仿生凹坑形钻井泥浆泵活塞磨损寿命试验

孙艺文¹, 汝绍锋², 丛茜^1,3

1. 吉林大学工程仿生教育部重点实验室吉林长春 130022;
2. 海南大学机电工程学院海南海口 570228;
3. 吉林大学汽车仿真与控制国家重点实验室吉林长春 130022

通讯作者: 丛茜,女,1963年9月生,1985年获吉林工业大学学士学位,1992年获吉林工业大学博士学位,现为吉林大学教授、博士生导师、吉林省工程仿生科技创新中心主任,主要从事工程仿生学方面的研究工作。Email:congqian@jlu.edu.cn
作者简介:孙艺文,女,1991年7月生,2014年获吉林大学学士学位,现为吉林大学硕士研究生,主要从事农业机械动力系统方面的研究工作。Email:sunyiwen33@126.com
基金资助:
国家自然科学基金项目（No.51375205）和吉林省科技发展计划项目（20160307009GX）资助。

Abstract

Abstract:

To improve the life-span of mud pump piston, natural biological surface morphology was imitated to design and process the dimple-shaped bionic units on the existing mud pump piston surface. The wear-lives of bionic piston and standard piston of BW-160 type mud pump were compared and studied under the same bench test conditions. The results show that the dimple-shaped bionic mud pump piston is able to obviously increase the life-span. For the BW-160 type piston, the bionic unit can improve the piston life to 2.19 times than the original life. Dimple-shaped structure parameters on the surface of piston have a significant impact on the life-span of piston. The impacts of dimple diameter, center angle and depth on piston life are reduced in sequence. The dimple diameter should not be too large or too small; the life-span of piston is increased with the reduction of dimple center angle; when dimple depth is larger, the piston life will become longer. Through analyzing the wear mechanism of bionic piston, it is found that the existence of dimple-shaped biomimetic unit can change the piston stress situation, increase the lubricant storage space, improve the interface lubrication condition, reduce the frictional resistance of friction pair, accommodate partial wear debris, and avoid the re-scratching of friction pair. Field drilling test was carried out on experimental results. For F1300 type piston,the life-span of dimple-shaped bionic piston was increased by 93% than standard piston.

Key words: bionics, drilling, mud pump piston, life-span, wear, dimple-shaped

摘要：

为提高泥浆泵活塞使用寿命，模仿自然界生物体表形态，在现有泥浆泵活塞表面设计加工凹坑形仿生单元体，在相同的台架试验条件下，对比研究BW-160型泥浆泵仿生活塞与标准活塞磨损寿命情况。结果表明，凹坑形仿生泥浆泵活塞可以显著提高使用寿命，对于BW-160型活塞，仿生单元体可提高活塞寿命至原来的2.19倍；活塞表面的凹坑形结构参数对活塞寿命具有显著影响，凹坑直径、凹坑中心夹角和凹坑深度对活塞寿命的影响依次减小；凹坑直径选取不宜过大或过小；活塞寿命随凹坑中心夹角缩小而增大；凹坑深度较大时，活塞寿命提高较多。分析仿生活塞耐磨机理发现，凹坑形仿生单元体的存在能改变活塞受力情况，增大润滑液存储空间，改善界面润滑条件，降低摩擦副摩擦阻力；同时还能容纳部分磨损磨粒，避免其对摩擦副产生再次刮划。对试验结果进行现场钻井验证试验，对于F1300型活塞，凹坑形仿生活塞与标准活塞相比，寿命提高了93%。

关键词: 仿生, 钻井, 泥浆泵活塞, 寿命, 磨损, 凹坑形

CLC Number:

TE924

Sun Yiwen, Ru Shaofeng, Cong Qian. Wear-life experiment of drilling mud pump piston with dimple-shaped bionic surface[J]. Acta Petrolei Sinica, 2017, 38(2): 234-240.

孙艺文, 汝绍锋, 丛茜. 仿生凹坑形钻井泥浆泵活塞磨损寿命试验[J]. 石油学报, 2017, 38(2): 234-240.

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Wear-life experiment of drilling mud pump piston with dimple-shaped bionic surface

仿生凹坑形钻井泥浆泵活塞磨损寿命试验

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