Solids Deposition from Paraffinic Mixtures: Investigation of 'Cold Flow' in Pipelines

石蜡混合物的固体沉积：管道中“冷流”的研究

• 批准号: RGPIN-2015-06498
• 负责人: Mehrotra, Anil
• 金额: $ 2.55万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=591098
• 关键词: Solids; Deposition; Paraffinic; Mixtures; Investigation

Most energy consumption forecasts suggest a continued growth in the worldwide petroleum demand. However, new crude oil reservoirs are deep, located offshore and contain heavy oils, with complex and costly infrastructure and operations. One serious challenge with deep-water petroleum production is the solids or wax deposition, which is known to cause plugging of pipelines and process equipment, requiring hundreds of millions of dollars annually for its control and remediation. Pipelines are known to have been abandoned because of becoming plugged with wax deposit. Wax deposition is a complex process, involving liquid-to-solid phase transformation of paraffins, which is influenced by cooling or crystallization rates, shear stress, the rate of heat transfer, and the oil composition.

大多数能源消费预测表明，全球石油需求将持续增长。然而，新的原油储层位于海上深处，含有重油，基础设施和操作复杂且成本高昂。深水石油生产面临的一个严重挑战是固体或蜡沉积，众所周知，这会导致管道和工艺设备堵塞，每年需要数亿美元用于控制和修复。众所周知，由于蜡沉积物堵塞，管道已经被废弃。蜡沉积是一个复杂的过程，涉及石蜡的液相到固相转变，这受冷却或结晶速率、剪切应力、传热速率和油成分的影响。