摘要
针对稠油水环输送管线因水环失稳破坏需重新启动的问题,基于自行研发设计的室内小型再启动环道模拟实验装置,以旅大油田四种普通稠油为研究对象,实验研究了稠油水环输送管道停输后以恒定水流量重新启动时,其再启动压降随时间的变化规律,讨论了持油率、油品黏度、停输时间及恒定水流速度对再启动压降的影响,应用IBM SPSS软件对正交再启动实验结果进行回归分析,建立再启动压降多元非线性回归模型,并通过192组实验数据验证其预测可靠性。实验结果表明:再启动压降随时间的变化可划分为压降衰减和压降恒定两个阶段;再启动压降与持油率、油品黏度、停输时间及恒定水流速度都呈正相关关系,但持油率与恒定水流速度的影响最显著;再启动压降的模型预测值与实验测量值吻合较好,其相对误差均在±10%范围以内。
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%.
作者
尹晓云
付林浩
李佳忆
程思杰
敬加强
MASTOBAEV Boris N
孙杰
YIN Xiaoyun;FU Linhao;LI Jiayi;CHENG Sijie;JING Jiaqiang;MASTOBAEV Boris N;SUN Jie(Safety,Environment and Technology Supervision Research Institute of PetroChina Southwest Oil and Gas Field Company,Chengdu 610041,Sichuan,China;Shale Gas Evaluation and Exploitation Key Laboratory of Sichuan Province,Chengdu 610041,Sichuan,China;Pipeline Co.,Ltd.of Guizhou Province,PipeChina Southwest Pipeline Co.,Ltd.,Chengdu 610000,China;School of Oil&Natural Gas Engineering,Southwest Petroleum University,Chengdu 610500,Sichuan,China;Oil&Gas Fire Protection Key Laboratory of Sichuan Province,Chengdu 611731,Sichuan,China;Department of Transport and Storage of Oil and Gas,UFA State Petroleum Technological University,450062,UFA,Russia)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2023年第11期5669-5679,共11页
Chemical Industry and Engineering Progress
基金
国家自然科学基金(U19B2012,52106208,2023NSFSC0924)。
关键词
稠油
水环
再启动压降
正交实验
回归模型
heavy oil
water annulus
orthogonal experiment
restart-up pressure drop
regression model
