含蜡原油流变性描述及降黏机制研究进展  

Research Progress in Rheological Description and Viscosity Reduction Mechanism of Waxy Crude Oil

作　　者：王海燕 宋时凤 张永年 杨超[2] 李秉繁 WANG Haiyan;SONG Shifeng;ZHANG Yongnian;YANG Chao;LI Bingfan(Shandong Ruikang Safety Evaluation Co.,Ltd.,Rizhao Shandong 276800,China;Technology Inspection Center of Sinopec Shengli Oilfield,Dongying Shandong 257000,China;Yanshan University,Qinhuangdao Hebei 066000,China)

机构地区：[1]山东瑞康安全评价有限公司,山东日照276800 [2]中国石化胜利油田分公司技术检测中心,山东东营257000 [3]燕山大学,河北秦皇岛066000

出　　处：《当代化工》2024年第10期2460-2467,共8页Contemporary Chemical Industry

基　　金：河北省自然科学基金项目(项目编号E2023203064)。

摘　　要：针对含蜡原油的流变性和降黏机制进行了综述。首先,从微观特性、黏温特性、屈服特性、触变性、黏弹性等方面介绍了含蜡原油流变行为;其次,分别介绍了气体、轻质原油、醇类等组分溶解对原油流变性的影响;最后,阐述了现有原油流变行为及轻质组分对原油流变性影响研究的不足和局限性,并对进一步研究进行展望。在以后工作中可将探寻剪切历史对蜡晶微观结构影响的作用机理、与施加的剪切速率条件无关的屈服应变、屈服应力作为研究重点。建立一种可靠的原油黏弹-触变模型,是原油管道再启动数值计算的前提与基础。The rheological properties and viscosity reduction mechanism of waxy crude oil were reviewed.Firstly,the rheological behavior of waxy crude oil was introduced from the aspects of microscopic properties,viscosity,yield properties,thixotropy and viscoelasticity.Secondly,the effects of dissolved gas,light crude oil or alcohol on the rheological properties of crude oil were described respectively.Finally,the shortcomings and limitations of existing studies were further discussed.The future research will focus on exploring the mechanism of the effect of shear history on the microstructure of wax crystals,and establishing the constitutive model of crude oil considering the yield strain and yield stress based on the morphological and structural changes of wax crystals.Furthermore,establishing a reliable viscoelastic-thixotropic model will be the prerequisite and basis for the numerical calculation in restarting of gelled crude oil containing light component at low temperature.

关 键 词：含蜡原油 流变性 轻组分 CO_(2) 溶解 黏度 停输再启动 

分 类 号：TQ022[化学工程]