联合站脱水效果影响因素实验研究
发布时间：2018-09-11 20:06
【摘要】：辽河油田稠油地面集输技术发展相对成熟,但随着油田开发进入高含水阶段,联合站脱水困难导致的外输原油含水率高、脱出水效果差的现象日趋严重。针对这一问题,本文选取锦州采油厂老三联合站为研究对象,从提高原油脱水效率的角度出发,以确保联合站正常运行为目的,对老三联合站脱水效果影响因素进行了较为全面的实验研究。实验部分基于辽河油田稠油现有两段热化学脱水工艺,由一段脱水室内研究和二段脱水室内研究组成,综合考虑温度、PH值、来液含水率以及破乳剂加药量四种主要因素,采用单一变量法进行了大量的室内实验,掌握各因素相互影响下稠油油水分离的规律,对实验现象及结果进行机理研究。在软件部分中,借助1st Opt将实验部分的数据进行拟合,筛选出与之匹配的经验公式;利用C#语言开发出一套界面良好、易于现场操作人员掌握的应用程序,既能对现行脱水工艺下外输原油含水率进行预测,也能优选出合理工况下的脱水方案。此外,该应用程序也在现场进行了测试,以检验其可行性,并将运行中发生的问题加以修改。结论表明:针对不同来液含水率的原油,在合理的区间内调节各项脱水工艺参数,有利于站内原油脱水并能改善稠油的脱水效果,也证明了该研究对锦采老三联合站外输原油含水率的达标以及进行下游生产有着重要的实际意义。
[Abstract]:The surface gathering and transportation technology of heavy oil in Liaohe Oilfield is relatively mature, but with the development of oil field entering into the stage of high water cut, the phenomenon of high water cut and poor effect of dewatering due to the difficulty of dehydration in the combined station is becoming more and more serious. In view of this problem, this paper selects the No. 3 United Station of Jinzhou Oil production Plant as the research object, from the point of view of improving the efficiency of crude oil dehydration, in order to ensure the normal operation of the joint station, The influencing factors of dehydration effect in LaoSan United Station were studied in detail. The experiment part is based on the existing two-stage thermochemical dehydration process of heavy oil in Liaohe Oilfield, which consists of the first stage dehydration laboratory study and the second stage dehydration laboratory study. Four main factors are considered synthetically: temperature and PH value, water cut and demulsifier dosage. A large number of laboratory experiments were carried out by using a single variable method to master the law of heavy oil-water separation under the mutual influence of various factors, and the experimental phenomena and results were studied. In the software part, the experimental data are fitted by 1st Opt, and the matching empirical formula is screened, and a set of application program with good interface and easy to be grasped by field operators is developed by using C # language. It can not only predict the water cut of crude oil under the current dehydration process, but also select the dehydration scheme under reasonable working conditions. In addition, the application was tested in the field to verify its feasibility and to correct any problems that occurred during the operation. The results show that adjusting the dehydration process parameters in a reasonable range for crude oil with different water cut is beneficial to dewatering crude oil and improving the dehydration effect of heavy oil. It is also proved that this study has important practical significance for the water cut of crude oil transported out of Jingai No. 3 Joint Station and the downstream production.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE866
本文编号：2237724
[Abstract]:The surface gathering and transportation technology of heavy oil in Liaohe Oilfield is relatively mature, but with the development of oil field entering into the stage of high water cut, the phenomenon of high water cut and poor effect of dewatering due to the difficulty of dehydration in the combined station is becoming more and more serious. In view of this problem, this paper selects the No. 3 United Station of Jinzhou Oil production Plant as the research object, from the point of view of improving the efficiency of crude oil dehydration, in order to ensure the normal operation of the joint station, The influencing factors of dehydration effect in LaoSan United Station were studied in detail. The experiment part is based on the existing two-stage thermochemical dehydration process of heavy oil in Liaohe Oilfield, which consists of the first stage dehydration laboratory study and the second stage dehydration laboratory study. Four main factors are considered synthetically: temperature and PH value, water cut and demulsifier dosage. A large number of laboratory experiments were carried out by using a single variable method to master the law of heavy oil-water separation under the mutual influence of various factors, and the experimental phenomena and results were studied. In the software part, the experimental data are fitted by 1st Opt, and the matching empirical formula is screened, and a set of application program with good interface and easy to be grasped by field operators is developed by using C # language. It can not only predict the water cut of crude oil under the current dehydration process, but also select the dehydration scheme under reasonable working conditions. In addition, the application was tested in the field to verify its feasibility and to correct any problems that occurred during the operation. The results show that adjusting the dehydration process parameters in a reasonable range for crude oil with different water cut is beneficial to dewatering crude oil and improving the dehydration effect of heavy oil. It is also proved that this study has important practical significance for the water cut of crude oil transported out of Jingai No. 3 Joint Station and the downstream production.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE866
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1 李玉华;江桥地区稠油特性及脱水方法研究[D];大庆石油学院;2006年
，本文编号：2237724
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