摘要
由于稠油、超稠油长输管道油品的黏温特性,管道的运行压力、温度、管径、集肤效应伴热温度等关键工艺参数的确定成为难题。根据纯油黏温曲线、掺稀油比下的黏度变化曲线及经济指标,综合比选确定低能耗、低投资、高安全性的温度和压力设计参数,从中总结出稠油、特稠油长输管道关键工艺参数分析方法。分析发现,黏温曲线的温度拐点是一个关键的参照点。根据这个方法确定海坨线普通稠油进站最低温度35℃,设计温度80℃,掺稀油比14∶1;特石线超稠油最低进站温度75℃,设计温度110℃,集肤效应伴热温度≥75℃。
Since the viscosity-temperature characteristic of viscous crude ＆ extremely viscous crude Oil transmission pipelines, it is difficult to determine key parameters such as pressure, temperature, pipeline diameter and heat tracing temperature of skin effect. According to viscosity-temperature curve, the blending ratio of lightweight oil and economic indicators, temperature and plessure design parameters with low energy consumption, low investment and high safety performance can be compared and chosen, from which the analytic method for key process parameters of viscous and extremely viscous crude oil transmission pilelines is summerized. The analysis shows that the turning point of viscosity-temperature curve is a key reference point. According to the method, the lowest incoming transmission temperature of Haituo-pipeline is found to be 35 ℃, the design temperature is 80 ℃ and the blending ratio of lightweight oil is 14：1. For the Teshi-pipeline, the lowest incoming transmission temperature is 75 ℃, the design temperature is 110 ℃ and the skin effect heat tracing temperature is more than 75℃.
出处
《油气田地面工程》
2017年第5期41-43,共3页
Oil-Gas Field Surface Engineering
关键词
长输管道
稠油
黏温特性
掺稀油比
温度拐点
long-distance transmission pileline
viscous crude
viscosity-temperature characteris-tic
blending ratio of lightweight oil
the turning point of viscosity-temperature curve
