欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
泛滥的公司 2 为提高的油恢复(EOR ) 和温室气体控制被认为是一个重要方法。然而，流行地在水库散布的异质禁止这种技术的表演。sweep 效率能显著地特别面对贼地区被减少。因此，煤气的 channeling 堵住和活动性控制是为公司 2 注射的成功的重要技术问题。通常， crosslinked 胶化有潜力堵住煤气的隧道，而是控制提出挑战到这个方法的冻结时间。在这研究，为有选择地堵住公司 2 channeling 的一个新方法被建议，它基于公司 2-sensitive 胶化系统(修改 polyacrylamide-methenamine-resorcinol 胶化系统) 的一种类型在 situ 形成胶化。一个公司 2-sensitive 胶化系统是冻结或团结什么时候将被公司 2 在水库触发堵住煤气的隧道。胶化系统的公司 2-sensitivity 在 N 2 和公司 2 气氛的胶化的平行瓶子测试被表明。沙包流动实验被进行在不同条件下面调查胶化系统的用以遮闭之物能力。胶化系统的 injectivity 经由粘性大小被学习。结果显示这个胶化系统对公司 2 敏感并且有在多孔的媒介堵住的 channeling 的好性能。有益的粘性温度特征在这个工作被完成。为在异构的形成的 EOR 的有效性用在两倍沙包进行的排水量测试基于这个胶化系统被表明。试验性的结果能为领域应用程序为 CO 2-sensitive 胶化系统的推广提供指南。
英文摘要：
CO2 flooding is regarded as an important method for enhanced oil recovery （EOR） and greenhouse gas control. However, the heterogeneity prevalently dis- tributed in reservoirs inhibits the performance of this technology. The sweep efficiency can be significantly reduced especially in the presence of ＂thief zones＂. Hence, gas channeling blocking and mobility control are important technical issues for the success of CO2 injection. Normally, crosslinked gels have the potential to block gas channels, but the gelation time control poses challenges to this method. In this study, a new method for selectively blocking CO2 channeling is proposed, which is based on a type of CO2-sensitive gel system （modified polyacry- lamide-methenamine-resorcinol gel system） to form gel in situ. A CO2-sensitive gel system is when gelation or solidification will be triggered by CO2 in the reservoir to block gas channels. The CO2-sensitivity of the gel system was demonstrated in parallel bottle tests of gel in N2 and CO2 atmospheres. Sand pack flow experiments were con- ducted to investigate the shutoff capacity of the gel system under different conditions. The injectivity of the gel system was studied via viscosity measurements. The results indi- cate that this gel system was sensitive to CO2 and had good performance of channeling blocking in porous media. Advantageous viscosity-temperature characteristics were achieved in this work. The effectiveness for EOR in heterogeneous formations based on this gel system was demonstrated using displacement tests conducted in double sand packs. The experimental results can provide guideli- nes for the deployment of theCO2-sensitive gel system for field applications.
同期刊论文项目
同项目期刊论文
期刊信息
位置：