王克亮,明阳阳,张垒垒,李雪,张祖科,杨琳
WANG Keliang,MING Yangyang,ZHANG Leilei,LI Xue,ZHANG Zuke,YANG Lin

• 1:东北石油大学提高采收率教育部重点实验室
• 2:辽河油田公司
• 3:大庆油田有限责任公司第一采油厂

摘要(Abstract)：

CO_2的黏度和密度比原油低很多,在驱替过程中容易发生气窜。选择了起泡能力较好的发泡剂HY-3进行岩心实验。结果表明:随着气液比增大,泡沫稳定渗流阻力降低;随着发泡剂质量分数的增加,泡沫驱达到稳定渗流时的压差升高;在双管并联高、低渗透率岩心中,点滴注入发泡剂,并利用其所形成的泡沫体系控制CO_2气体的窜逸,达到了调整吸气剖面、扩大波及体积、增加采收率的目的。
Due to the much lower viscosity and density for CO_2 than those of the crude oil,the gas channeling is prone to occur during the flooding process.HY-3 foaming agent is chosen for its high foaming capacity,and the corresponding core experiment is conducted.The results show that with the rise of the gas-liquid ratio,the stable seepage resistance of the foaming agent drops;with the increase of the mass fraction,the pressure differential rises when the foam flooding is up to the stable seepage;in the double-barreled parallel cores with high and low permeabilities,the foam agent is injected drop by drop and moreover with the help of the produced foam system,the CO_2channeling and escape are controlled,so the purposes of adjusting the gas-absorbing profiles,enlarging the swept volume and enhancing the recovery are realized.

关键词(KeyWords)： CO_2;气窜;点滴注入;发泡剂;泡沫;均质岩心;稳定渗流阻力;大安油田
CO_2;gas channeling;drop injection;foaming agent;foam;homogeneous core;stable seepage resistance;Daan Oilfield

Abstract:

Keywords:

基金项目(Foundation): 中石油重大专项“CO_2驱扩大波及体积的表活剂体系及应用研究”(07-02Z-01-03);; 黑龙江省自然科学基金(E201031);; 省高校科技创新团队“提高油气采收率原理与技术”(2009td08)

作者(Author): 王克亮,明阳阳,张垒垒,李雪,张祖科,杨琳
WANG Keliang,MING Yangyang,ZHANG Leilei,LI Xue,ZHANG Zuke,YANG Lin

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