稠油油藏蒸汽蒸馏物理模拟实验

发布时间：2018-03-21 10:16

  本文选题：稠油　切入点：蒸汽蒸馏　出处：《油气地质与采收率》2016年06期 　论文类型：期刊论文

【摘要】：蒸汽蒸馏可以有效提高在稠油热采过程中的原油采收率,然而蒸汽蒸馏机理及其对原油性质的影响尚不明确。为此,设计三维物理实验模型,分别进行饱和蒸汽、过热10℃蒸汽和过热40℃蒸汽3组蒸汽蒸馏实验。结果表明:原油蒸汽蒸馏率受注入蒸汽的过热度影响很大,注入蒸汽的过热度越高,蒸汽蒸馏率就越高;过热40℃蒸汽、过热10℃蒸汽和饱和蒸汽的蒸汽蒸馏率分别为11.158%,10.903%和10.423%;蒸汽蒸馏率随蒸汽注入量的增大而增大,当蒸汽注入量达到一定值后,蒸汽蒸馏减弱,蒸汽蒸馏率不再上升。对比蒸馏前后原油的密度、粘度、组分、碳数分布和馏分组分的测试结果可知,蒸汽蒸馏先蒸馏碳数小的轻质组分,而后蒸馏较重的组分。蒸汽蒸馏使残余油密度和粘度增加,使饱和烃和胶质质量分数减小。残余油组分的碳数主要分布区域向右移动,改变了原油的组成。
[Abstract]:Steam distillation can effectively improve the recovery of crude oil during thermal recovery of heavy oil. However, the mechanism of steam distillation and its influence on the properties of crude oil are not clear. The results show that the steam distillation rate of crude oil is greatly affected by the superheat degree of injected steam, the higher the superheat degree of injected steam is, the higher the steam distillation rate is, and the steam is superheated at 40 鈩，

本文编号：1643414