摘要
用AM(丙烯酰胺)、AA(丙烯酸)和疏水单体HB-18合成了一种疏水缔合聚合物,对其溶液性质与部分水解聚丙烯酰胺HPAM进行了对比评价,研究了无机盐对该疏水缔合聚合物溶液性质的影响,并对其影响机理进行了解释。结果表明,疏水缔合聚合物溶液具有明显的缔合行为和增黏效果,并具有比HPAM更好的抗温抗盐作用;无机盐的种类和浓度对疏水缔合聚合物溶液性质有明显的影响,特别是二价离子Ca2+、Mg2+对溶液性质的影响非常大。指出,在合成疏水缔合聚合物时,应该针对不同的地层矿化条件采用不同的分子结构;如果条件允许的话,溶液的配制过程应该灵活多变,以使溶液性能达到最佳效果。
A hydrophobically associating polymer is synthesized using acrylamide (AM), acrylic acid (AA), hydrophobic monomer HB-18, and its aqueous solution properties evaluated in comparison with HPAM (partially hydrolyzed polyacrylamide). The effects of inorganic salts on the properties of the polymer solution are studied, and the mechanism of theses effects explained. The evaluation showed that the hydrophobically associating polymer has apparent associating characteristics and thickening effect, and is better than HPAM in terms of temperature stability and salinity tolerance. Inorganic salts, especially the divalent salts (Ca2+, Mg2+ for example), and their concentrations have great influence on the properties of the polymer solution. Thus in synthesizing hydrophobically associating polymer, different molecular structure of the polymer should be designed for different formation water salinity for which the synthesized polymer will be used. The polymer solution should be prepared according to the different conditions for better results.
出处
《钻井液与完井液》
CAS
北大核心
2007年第1期55-57,共3页
Drilling Fluid & Completion Fluid
关键词
疏水缔合聚合物
无机盐
影响
hydrophobically associating polymer
inorganic salts
effect
