高黏原油掺气管输流动减阻特性研究  

Study on flow drag reduction characteristics of high viscosity crude oil mixed with air pipeline transportation

作　　者：王帅 史胜垚 高明平 朱紫燕 郭晨宇 WANG Shuai;SHI Shengyao;Gao Mingping;ZHU Ziyan;GUO Chenyu(School of Petroleum Engineering and Environmental Engineering,Yan’an University,Yan’an 716000,China)

机构地区：[1]延安大学石油工程与环境工程学院,陕西延安716000

出　　处：《延安大学学报（自然科学版）》2023年第2期30-36,共7页Journal of Yan'an University：Natural Science Edition

基　　金：陕西省自然科学基础研究计划项目(2021JQ-633);陕西省科协青年人才托举计划项目(20220459);陕西省教育厅自然科学研究项目(21JK0995);榆林市科技计划项目(CXY-2022-184);延安大学博士科研启动项目(YDBK2020-01);大学生创新创业训练计划项目(D2021136)。

摘　　要：高黏原油黏附性强、固相沉积严重、流动性差,给其流动保障提出严峻挑战。采用室内环道实验模拟方法对高黏原油掺气流动力学特性进行研究,设计了高黏原油掺气实验环道,以内径分别为14 mm和22 mm的透明有机玻璃管作为观测管段,通过分析高黏原油基本物性,选用黏度相当的白油作为模拟高黏原油,在不同工况下,利用高速摄像机观测流型演化,通过分析测试管段压降变化规律,确定最佳掺气比,达到高黏原油掺气减阻目的。结果表明,适当工况下高黏原油掺气可实现减阻输送,当高黏原油表观速度达到0.837 m/s,气体表观速度达到0.07 m/s,气油比为11.59%时,减阻效果最好。The strong adhesion,serious solid deposition and poor fluidity of heavy oil pose a severe challenge to its flow efficiency.The indoor loop experimental simulation method was used to study the aerodynamic characteristics of heavy oil mixing,and the heavy oil mixing experimental loop was designed.The transparent plexiglass pipe with inner diameter of 14 mm and 22 mm was used as the observation pipe section.By analyzing the basic physical properties of heavy oil,white oil with equivalent viscosity was selected as the simulation,and the flow pattern evolution was observed based on high-speed camera under different working conditions.By analyzing the variation law of pressure drop in the test pipe section,the optimal aeration ratio was determined to achieve the purpose of heavy oil aeration and drag reduction.The experimental results show that heavy oil aeration can realize drag reduction transport under appropriate working conditions.When the apparent velocity of heavy oil reaches 0.837 m/s,the apparent velocity of gas reaches 0.09 m/s,and the gas oil ratio is 11.59%,the drag reduction effect is the best under the above conditions.

关 键 词：高黏原油 掺气输送 流型 减阻率 管段 

分 类 号：TE8[石油与天然气工程—油气储运工程]