三元复合体系界面张力与驱油效率相关性研究
Characteristics of Interface Tension and Oil Displacement with ASP Flooding
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- 引用格式:
-
郭春萍,朱慧峰,王昊宇,司淑荣,王,颖,彭树凯.三元复合体系界面张力与驱油效率相关性研究[J].天然气与石油,2011,29(4):0.doi:
.Characteristics of Interface Tension and Oil Displacement with ASP Flooding[J].Natural Gas and Oil,2011,29(4):0.doi:
- DOI:
- 作者:
- 郭春萍 朱慧峰 王昊宇 司淑荣 王 颖 彭树凯
- 作者单位:
- 大庆油田勘探开发研究院采收率研究二室
- 关键词:
- 复合体系；界面张力；驱油效率；动态界面张力；平衡界面张力
Compound system；Interface tension；Oil displacement efficiency；Dynamic interface tension；Equilibrium interface tension
- 摘要:
- 原有复合体系评价方法存在诸多问题，如评价方法未定量、不准确、不全面等问题。应系统地提出一套评价指标和评价标准，建立评价体系，有效地判别评价方法的可靠性，以便找出提高复合体系驱油效果的主要因素，进而提高石油采收率。针对大庆油田油层具体情况，研制出相同类型、相同用量、不同分子排布的表面活性剂，实现相同碱、聚合物、表面活性剂用量时，复合体系油水界面张力特征不同。通过岩心物理模拟实验，研究具有不同界面张力特征体系驱油效果，确定界面张力与驱油效率的关系。结合驱油实验结果，得出复合体系界面张力的评价标准，指导复合体系室内配方筛选及注入体系性能优化工作。
In order to be accurately familiar with oil field recovery at this stage，it is necessary to put forward systematically a set of evaluation indexes and evaluation standards，establish an evaluation system and determine effectively the reliability of the evaluation method so as to find out main factors for improving oil displacement effects and improving oil recovery further. Analyzed are specific circumstances of Daqing Oilfield reservoirs，developed are surface active agents with same type，same usage amount and different molecular arrangements，conducted is physical simulation experiment of core，investigated are oil displacement effects of characteristic systems with different interface tensions and given is the relation between the interface tension and oil displacement efficiency. According to oil displacement experimental results，put forward is the evaluation standard of the interface tension of the compound system，which is helpful to direct indoor selection of the compound system and performance optimization of filling system.
