HPAM-Cr (III) Gel Syneresis in Bulk Volume
Gussenov I. Bakytzhan S. Amangaliyev S. Abba Y.
14 July 2024Institute of Combustion Problems, al-Farabi Kazakh State National University
Eurasian Chemico-Technological Journal
2024#26Issue 261 - 66 pp.
This paper explores the crucial factors influencing the stability of polymer gels utilized in oil well treatments, with a focus on the effects of polymer mixing time and concentrations of polymer and crosslinker. Operating within a practical constraint of a 30-minute mixing time in surface facilities, our findings reveal that incomplete polymer dissolution leads to gel segregation and substantial water release over extended aging at 50 ºC. Notably, a reduction in the crosslinker/ polymer ratio, achieved by lowering crosslinker concentration or increasing polymer concentration, proves effective in mitigating water release to as low as 0‒1% over 90‒185 h of aging. Furthermore, gels prepared in sea and reservoir brines exhibit superior stability compared to those in distilled water, suggesting that ion presence in brines counteracts the repulsion between charged polymer chains observed in distilled water. This study provides valuable insights for optimizing polymer gel formulations under time constraints.
Brine , Gels , Oil recovery , Polymer , Syneresis
Text of the article Перейти на текст статьи
Satbayev University, 22 Satbayev str., Almaty, Kazakhstan
Kazakh-British Technical University, 59 Tole bi str., Almaty, Kazakhstan
Satbayev University
Kazakh-British Technical University
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026