Study on the Wear Performance of Polyethylene Inner Lining Pipe under Different Load and Mineralization Conditions

Author:

Ding Liqin12,Wang Lei34567ORCID,Li Jie8,Qi Suoping9,Zhang Wanli10,Xi Yuntao311,Zhang Keren3,Xu Shanna3,Liu Haitao4ORCID,Wen Lei6,Xiao Xinke7,Ji Jiangtao12

Affiliation:

1. College of Chemistry & Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China

2. Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery, Xi’an 710075, China

3. School of Material Science and Engineering, Xi’an Shiyou University, Xi’an 710065, China

4. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China

5. State Key Laboratory of Tribology in Advanced Equipment, Tsinghua University, Beijing 100084, China

6. Nation Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China

7. Henan International Joint Laboratory of Dynamics of Impact and Disaster of Engineering Structures, Nanyang Institute of Technology, Nanyang 473004, China

8. Changqing Branch, China National Logging Corporation, Xi’an 710200, China

9. PipeChina West East Gas Pipeline Company, Yinchuan 750001, China

10. Sulige Gas Field Development Corporation, PetroChina Chang-Qing Oilfield Company, Xi’an 710021, China

11. Petroleum Systems Engineering, Faculty of Engineering and Applied Science, University of Regina, Regina, SK S4S 0A2, Canada

12. China Railway First Survey and Design Institute Group Co., Ltd., Xi’an 710043, China

Abstract

This study conducted pin disc friction and wear performance tests on polyethylene-lined oil pipes and four types of centralizing materials (45# steel, nylon, polytetrafluoroethylene (PTFE), and surface alloy coating) in oil fields. The friction coefficient and wear rate were tested, and the wear mechanism was analyzed using scanning electron microscopy (SEM) and three-dimensional confocal microscopy. Using a combination of experimental testing analysis and theoretical research, a comprehensive evaluation of the current wellbore centering and anti-wear technology for oil was conducted. The experimental results indicate that the usage limit of polyethylene-lined oil pipes is 400 N, and compared to metal oil pipe materials, the wear rate of both stabilizing material and tubing material is lower, indicating that it has a certain service life. From the perspective of testing load, taking into account the factors of friction coefficient and wear rate, the recommended sequence of straightening material for polyethylene lined oil pipes is (1) surface alloy coating, (2) nylon, (3) PTFE, and (4) 45# steel.

Funder

National Natural Science Foundation of China Project

Open Foundation of Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery

Natural Science Basic Research Program of Shaanxi Province

Young Scientific Research and Innovation Team of the Xi’an Shiyou University

The Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University

The Tribology Science Fund of State Key Laboratory of Tribology in Advanced Equipment

State Key Lab of Advanced Metals and Materials

Materials Service Safety Assessment Facilities

Henan International Joint Laboratory of Dynamics of Impact and Disaster of Engineering Structures, Nanyang Institute of Technology

China Scholarship Council Foundation

Publisher

MDPI AG

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces

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