Wax/paraffin deposition in production wells and oil pipelines is a major challenge for oil production. Extensive research has been conducted to improve understanding of this process. This paper presents a review of experimental work carried out with flow loops. Previous research investigated paraffin deposition process under the influences of temperature, flow rate/velocity, shear stress, water fraction, gas phase, pipe material, asphaltene concentration, and chemical inhibitors. Test results reveal that temperature and shear stress have significant impacts on wax deposition. Limited research has been conducted on wax deposition under multiphase flow. Even though more than 20 years of efforts have been spent on wax deposition studies, unfortunately we have not fully understood this phenomenon.

中文翻译：

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流动回路石蜡沉积实验研究

生产井和石油管道中的蜡/石蜡沉积是石油生产的主要挑战。为了提高对这一过程的理解，人们进行了广泛的研究。本文回顾了使用流动回路进行的实验工作。先前的研究调查了温度、流速/速度、剪切应力、水分数、气相、管道材料、沥青质浓度和化学抑制剂影响下的石蜡沉积过程。测试结果表明，温度和剪切应力对蜡沉积有显着影响。对多相流下蜡沉积的研究有限。尽管人们在蜡沉积研究上花费了20多年的努力，但不幸的是我们还没有完全理解这种现象。