化工进展2023，Vol.42Issue(11)：5669-5679,11.DOI:10.16085/j.issn.1000-6613.2022-2281
稠油水环输送管道再启动压降特性分析
Analysis of restart-up pressure drop characteristics of heavy oil-water ring transportation pipeline
摘要
Abstract
Aiming at the problem of restart-up for heavy oil-water ring transportation pipeline due to instability and damage of the water ring,based on the self-developed design of small indoor loop simulation experimental device,taking four kinds of ordinary heavy oil in Luda oilfield as the research object,the change law of restart-up pressure drop with time was experimentally studied when the pipeline was restarted-up after shutdown at constant water flow.The effects of oil holdup,oil viscosity,shutdown time as well as constant water flow velocity on the restart-up pressure drop were discussed.The regression analysis on the results of orthogonal restart-up experiment was conducted by IBM SPSS software,and a multivariate nonlinear regression model of restart-up pressure drop was established,the prediction reliability of which was verified through 192 groups of experimental data.The experimental results showed that the variations of restart-up pressure drop with time can be divided into two stages:attenuation stage and equilibrium stage.The restart-up pressure drop was positively correlated with oil holdup,oil viscosity,shutdown time and constant water flow velocity,but the influences of oil holdup and constant water flow velocity were the most significant.The predicted values of restart-up pressure drop were in good coincidence with the measured ones,and the relative error are within the range of±10% .关键词
稠油/水环/再启动压降/正交实验/回归模型Key words
heavy oil/water annulus/orthogonal experiment/restart-up pressure drop/regression model分类
能源科技引用本文复制引用
尹晓云,付林浩,李佳忆,程思杰,敬加强,MASTOBAEV Boris N,孙杰..稠油水环输送管道再启动压降特性分析[J].化工进展,2023,42(11):5669-5679,11.基金项目
国家自然科学基金(U19B2012,52106208,2023NSFSC0924). （U19B2012,52106208,2023NSFSC0924）
