注气速度对空气泡沫防气窜性能影响的实验研究  

Experimental Study on the Influence of Gas Injection Rate to Anti-channeling Performance of Air Foam

作　　者：何松[1] 李科星[1] 倪积慧 谢金阳[1] 刘哲[1] 

机构地区：[1]西南石油大学油气藏地质与开发工程国家重点实验室,成都610500

出　　处：《科学技术与工程》2015年第6期74-77,共4页Science Technology and Engineering

摘　　要：通过岩心渗流物模实验,采用气液同注方式,对不同注气速度条件下空气泡沫防气窜能力进行了实验研究。实验测量了岩心两端注入压差随注气速度增长的变化值,对比了含聚泡沫和无聚泡沫防气窜能力,得出在注气速度一定的情况下,含聚泡沫的注入压差明显高于无聚泡沫,且含聚泡沫能在更高的注气速度条件下防气窜,并且界定了气窜发生的临界注气速度。The influence of gas injection rate to anti-channeling performance of air foam was investigated by the core flow physical model experiments with gas-liquid injection mode. The experiment measures the change of injection pressure of both ends of the core with the growth of gas injection rate. Compared anti-channeling ability of polymer foam with that of air foam,the experiment shows that the injection pressure of polymer foam is higher than that of air foam with a certain gas injection speed and the polymer foam can prevent the channeling under higher gas injection speed than air foam. Besides,the experiment points out the critical gas injection rate that gas channeling occurred.

关 键 词：空气泡沫 注气速度 气窜 

分 类 号：TE355.3[石油与天然气工程—油气田开发工程]