[1]闫雪,王宝辉,隋欣,等.弱碱三元复合驱硅质垢形成影响因素与机理研究[J].南京师范大学学报(工程技术版),2009,09(03):042-46.
　Yan Xue,Wang Baohui,Sui Xin,et al.Study on Influencing Factors and Mechanism of Silicon Scaling in Weak Base ASP Flooding[J].Journal of Nanjing Normal University(Engineering and Technology),2009,09(03):042-46.
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弱碱三元复合驱硅质垢形成影响因素与机理研究
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
09卷
期数:
2009年03期
页码:
042-46
栏目:
出版日期:
2009-09-30

文章信息/Info

Title:
Study on Influencing Factors and Mechanism of Silicon Scaling in Weak Base ASP Flooding
作者:
闫雪;王宝辉;隋欣;盖翠萍;
大庆石油学院化学化工学院, 黑龙江大庆163318
Author(s):
Yan Xue; Wang Baohui; Sui Xin; Gai Cuiping
College of Chemistry and Chemical Engineering,Daqing Petroleum Institute,Daqing 163318,China
关键词:
弱碱三元复合驱;  硅质垢;  影响因素;  硅钼黄分光光度法;  结垢机理;  油层结垢
Keywords:
w eak baseASP flood ing;  silicon sca le;  influenc ing factors;  silicon m olybdenum ye llow spectrophotome try; scalingm echan ism;  form ation sca ling
分类号:
TE39
摘要:
在弱碱三元复合驱驱油过程中,弱碱药剂碳酸钠会导致油层及采出系统中形成硅质垢,不仅会造成油层伤害,还会给生产带来极大不便.因此,开展弱碱三元复合驱硅质垢形成影响因素与机理研究,可对现场防垢除垢技术起到理论指导作用,进一步促进弱碱三元复合驱技术的推广应用.采用硅钼黄分光光度法,研究了pH值、温度和碳酸盐垢等3个主要因素对硅质垢形成的影响.结果表明,pH=8.2~10.2,随pH值增大,硅成垢趋势减弱;温度为25℃~65℃,随温度升高,硅成垢趋势减弱;碳酸盐垢可促进硅质垢生成,并且随碳酸盐垢含量的增加,硅成垢趋势增强.此外,依据硅酸聚合经典理论,详细分析了弱碱三元复合驱中硅质垢的形成机理,概括为:单分子硅酸→多聚硅酸→硅酸凝胶→硅质垢.
Abstract:
During the w eak base a lkaline-surfactant-polymer ( ASP) flooding, w eak base chem ica l sodium ca rbonate m ay lead to silicon sca ling in the rese rvo ir and produced system, w hich w ill not on ly do harm to reservo ir and o ilfield, bu t a lso to production. Thus, the paper carried out th is research w hich not on ly w ill prov ide som e theoretica l gu idance for sca le contro l and remova l but promo te the application and deve lopm ent of w eak base ASP flood ing. The influence o f pH va lue、tem pe rature and carbonate sca le we re studied by using of silicomolybdenum ye llow spectropho tom etry. The results show that: in the range o f pH 8.2 - 10. 2 or tem pe ra ture 25℃ - 65℃ , when pH va lue or tem pera ture increased, the tendency of silicon sca ling decreased respectively; carbona te scale could promo te silicon sca ling, and w hen ca rbonate scale increased, the tendency of silicon scaling increased. M o reover, based on the classical theory o f silicic ac id poly- m eriza tion, th is paper expounded in deta il the form ing m echan ism of s ilicon sca le. It can be summa rized as fo llow s: mono-silicicac id→ poly→silicic acid -silicic acid gel→ silicon scale.

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备注/Memo

备注/Memo:
通讯联系人: 王宝辉, 博士, 教授, 博士生导师, 研究方向: 油气田应用化学. E-m ail:w angbaohu i60@ 163. com
更新日期/Last Update: 2013-04-23