摘要
复合驱中聚合物的作用在增加水的粘度和降低水的相渗透率,通过降低水的流度提高波及系数;表面活性剂的作用主要在将油水界面张力降至超低,通过增加毛管数提高驱油效率\;碱的作用在于与原油中酸性组分反应,生成表面活性物质起作用。这些组分在一起时,相互间有协同效应,也有负面效应,影响驱油效果。本文拟就有关问题作一简要的讨论。
In the combination flooding process,the function of the polymers lies in increasing water viscosity and reducing water phase permeability,to increase sweep efficiency due to reduced water mobility.The function of the surfactants lies in reducing the interfacial tension between oil and water to ultralow value,to increase flooding oil effect due to increased capillary numbers.The function of the alkali lies in reaction with species present in the crude oil to form the surface active species.Both synergistic effects and negative effects between polymers,surfactants and alkali have important influence oil recovery.In this paper,The relevant problems are discussed briefly.
出处
《新疆石油天然气》
CAS
2009年第4期48-52,110-111,共5页
Xinjiang Oil & Gas
关键词
复合驱
聚合物
表面活性剂
碱
协同效应
combination flooding process
polymer
surfactant,alkali
synergistic effects
