摘要
长期以来，聚丙烯酰胺驱油剂在高温高盐油层条件下粘度急剧降低的技术难题，使聚合物驱推广应用受到了极大的限制。本文利用增强聚合物结构粘度的新思路，通过大量的合成实验研制出新型缔合聚合物驱油剂。研究表明，这类驱油剂不仅具有显著抗温抗盐性能，而且具有提高聚合物驱油效率的巨大潜力。通过主剂的改性可显著降低聚合物驱油剂的用量和成本，具有巨大的推广应用前景。
An amphoteric associative polymer(sample No 11.18.11) is evaluated as EOR polymer in comparison with anionic polymer Pfizer's 3330S. It is shown that sample 11.18.11 is a better flooding polymer than 3330S, has fairly good heat resistancy(viscosity of salt free solution of 1050 mg/L at 75℃ and 7.34 s -1 —40 mPa·s) and exellent salt tolerency (viscosity of 1100 mg/L solution in 15% NaCl at 25℃ and 7.34 s -1 —>40 mPa·s) and the enhancement in oil recovery obtained in core flow experiments with 0.2 PV of 0.1% polymer solution is higher (10.3% vs 8.1%). This polymer is developed for use under hostile reservoir conditions.
出处
《油田化学》
CAS
CSCD
北大核心
1999年第2期149-152,共4页
Oilfield Chemistry
关键词
缔合聚合物
两性聚合物
驱油
性能
驱油剂
Associative Polymer
Amphoteric Polymer
Polymer for EOR
Performance Properties
