蜡
沉积(地质)
管道运输
笼状水合物
石油工程
流量保证
管道(软件)
水合物
流量(数学)
环境科学
相(物质)
材料科学
化学工程
化学
地质学
环境工程
工程类
机械
复合材料
机械工程
有机化学
物理
古生物学
沉积物
作者
Zhiming Liu,Yuxing Li,Wuchang Wang,Guangchun Song,Zhiyuan Lu,Yuanxing Ning
出处
期刊:Energy & Fuels
[American Chemical Society]
日期:2020-10-14
卷期号:34 (11): 13350-13368
被引量:24
标识
DOI:10.1021/acs.energyfuels.0c02749
摘要
In the oil pipeline transportation system, wax deposition will reduce the effective circulation area, weaken the overall pipeline transportation capacity, and even block the pipeline, which seriously threatens the safety of the pipeline flows. In the actual production of oil fields and the transportation of oil products, except for the single-phase waxy crude oil, under most conditions, operations are performed using multiphase mixed transportation, so it is necessary to determine the wax deposition characteristics in those pipeline systems. In this Review, three new wax deposition mechanisms proposed in recent years and several typical experimental devices were summarized, the wax deposition in oil–water and oil–gas flow systems and the wax–hydrate coupling deposition in oil–gas–water flow system flows were concluded; the mathematical models were also categorized based on the three flow systems. Meanwhile, it highlighted the fact that, in the two-phase flow, because of the complexity of the flow pattern and the presence of the second interface on the wax deposition process, independent theoretical research on the mechanism of wax deposition is particularly necessary; based on this, a more-accurate wax deposition prediction model can also be developed. For the coupled deposition of wax-hydrate in the three-phase flow system, experimental instruments such as FBRM, PVM and molecular dynamics simulations could be used to study the distribution characteristics and interaction rules of wax crystals and hydrate particles from a microscopic perspective. On the other hand, the mechanism of wax crystal and hydrate coupling deposition by additives such as antiwax agents, hydrate inhibitors, antipolymerization agents, and pipeline transportation conditions can be investigated experimentally to better control the deposition process during pipeline operation and ensure the safe flow in the transportation system.
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