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用于增强重型石油回收的两聚合物的制备和性能评估

Dongtao Fei¹, Jixiang Guo¹, Ruiying Xiong²

¹Unconventional Petroleum Research Institute, China University of Petroleum, Beijing 102249, China.

|January 17, 2024

概括

一种新的两性聚合物PAALB有效地降低了重油粘度,并通过改变岩石的湿透性和实现超低的界面张力来增强油的回收. 与传统聚合物相比,这种先进的化学洪水剂显著提高了油位移效率.

科学领域:

石油工程是石油工程中的一个.
聚合物化学聚合物化学
增强石油回收的方法

背景情况:

全球对能源和原材料的需求不断增长,需要高效的重油开采.
降低重油粘度对于有效提取至关重要.
-表面活性剂-聚合物 (ASP) 洪水是有希望的,但面临着诸如化学剂分离等挑战.

研究的目的:

为了合成和描述用于重油提取的多功能两聚合物 (PAALB).
评估PAALB在降低重油粘度和提高石油回收方面的表现.
为了克服传统化学洪水剂的局限性.

主要方法:

使用烯胺,2-烯胺-2-甲基硫酸,烯酸和烯酸的自由基聚合.
通过红外光谱学和核磁共振光谱学对PAALB的结构性表征.
通过接触角度,界面张力,乳化,关键协会度和充满沙子的管道洪水实验来评估性能.

主要成果:

PAALB有效地将岩石的湿度从油湿转变为水湿 (接触角度从106.55°减少到34.95°).
实现了超低的油水界面张力 (3.32 × 10−4 mN/m),诱导了自发乳化.
与HPAM相比,重油粘度降低了98.60% (从14,315 mPa·s降至201 mPa·s),回收率增加了25.63%.

结论:

PAALB通过改善湿透性和降低粘度来提高重油回收的巨大潜力.
合成的两性聚合物有效地解决了重油开采的化学洪水中的挑战.
在石油行业中,PAALB为优化化学洪水策略提供了宝贵的见解.

关键词:

这是一种两性聚合物.增强石油回收的方法减轻重油粘度减轻重油的粘度疏水性协会是一种疏水性协会.自乳化自乳化方法

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