供氢剂及催化剂在火驱中的作用效果研究

Effect of Hydrogen Agent and Metallic Catalysts during Fire Flooding

时光 刘永建

SHI Guang，LIU Yongjian

为了获得火驱过程中供氢剂以及金属离子催化剂对开发效果的影响规律，以甲酸为供氢剂、铁（镍）基离子溶液为催化剂，考察了它们在稠油火驱过程中提高氧气利用率和燃烧效率的作用效果，研究了添加铁基离子溶液对稀油燃烧稳定性的影响。结果表明：在稠油火驱中加入质量分数0.3%甲酸、0.05%铁基离子溶液后，燃烧稳定性增强，尾气中CO2、CO含量上升、O2含量下降，氧气利用率提高了8.27%、燃烧前缘温度提升27℃、采收率提高了7.33%；在稀油火驱中添加0.05%铁基离子溶液后，燃料沉淀量增加，可保证稀油火驱燃烧的持续性。图13表2参14

In order to study the effects of the hydrogen agent and metal catalysts on in-situ combustion development，effect of the formic acid，ferrous（nickel）-base ions solution on improving the oxygen utilization rate and combustion efficiency was investigated during heavy oil flooding；effect of adding the ferrous ion solution on thin oil combustion stability was also probed . Experimental results showed that，compared to the basic heavy oil fire flooding experiment，after adding 0.3% formic acid and 0.05% ferrous ion solution into the simulated oil sand，the combustion stability was enhanced and the CO2，CO content in the exhausted gas increased while the O2 content decreased significantly，the O2 utilization ratio increased by 8.27%，the combustion front was increased by 27℃ and the oil recovery was enhanced by 7.33%. Compared to the thin oil fire flooding base experiment，the addition of 0.05% ferrous ion solution made fuel concentration increased，which ensured the sustainable combustion on the thin oil fire flooding experiment.

10.19346/j.cnki.1000-4092.2016.03.027