| 摘要: |
| 为更好的研究碳钢在油/水双相流体中的腐蚀磨损问题，解决抽油杆/管之间的腐蚀磨损问题。利用自制的金属表面水润湿测定装置测定了油/水流体中碳钢表面水润湿率随含水量和流速的变化。利用往复磨损试验机和扫描电镜，在牺牲阳极保护条件下，研究了碳钢在不同流体中的纯磨损失重和表面破坏情况，探究表面水润湿率与碳钢纯磨损行为之间的关系。结果表明：随着水含量的增加，碳钢表面水润湿率提高；但是其表面水润湿率在含水量35%的流体中随着流动速度的提高而降低，在含水量45%和60%的流体中随含水量的提高而升高。碳钢在油/水流体中的纯磨损失重和摩擦因数均随着其表面水润湿率的提高而增加，碳钢的纯磨损行为受到表面水润湿率的影响。在油/水双相流体中碳钢发生磨粒磨损，表面水润湿率低的条件下以塑性去除机制为主；表面水润湿率高的条件下，以脆性去除机制为主。 |
| 关键词: 油/水双相流 碳钢 纯磨损 水润湿 磨粒磨损 |
| DOI：10.3969/j.issn.1007-9289.2014.05.006 |
| 分类号: |
| 基金项目: |
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| Effects of Surface Water Wetting Percentage of Carbon Steel on Its Pure Mechanic Wear in Oil/Water Two Phase Fluids |
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HU Ziyang, DUAN Deli, LI Shu
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Institute of Metal Research, China Academy of Science, Shenyang 110016
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| Abstract: |
| To understand the corrosive wear mechanism of carbon steel (CS) in oil/water two phase fluids and to solve the corrosive wear problems between sucker rod and tubing wall in oil recovery industry, homemade apparatus was employed to measure the surface water wetting percentage (SWWP) on CS in oil/water fluids with different water content and flow velocities. Pure mechanic wear loss of CS in oil/water fluids with different SWWP was detected under the protection of sacrificial anode via reciprocating corrosive wear tester and the surface damage of CS was observed by scanning electron microscope (SEM), to explore the relationship between SWWP and the pure mechanic wear behaviors of carbon steel. The results show that: SWWP increases with the increasing of water content in oil/water fluids, and it increases with the increment of flow velocity with a water content of 45% and 60%, while it decreases with flow velocity increasing with 35% water. The friction coefficient and weight loss of CS increases with the development of SWWP, which means that the pure mechanic wear behavior is significantly influenced by SWWP. The damage mechanism of CS is abrasive wear and the plastic removal and fragile removal is the dominant mechanism when the SWWP is low and high, respectively. |
| Key words: oil/water two phase fluids carbon steel (CS) pure mechanic wear water wetting abrasive wear |
