Injecting air catalytic oxide production process,which has various production mechanism,is an innovative,efficient,and lower cost technology of enhance heavy oil recovery.So it is more and more concerned by people.Using the copper naphthenic as the catalyst,this paper focuses on evaluation of catalytic conditions for SZ36-1 heavy oil.When catalyst dosage is 0.2(w)%,reaction temperature is 100℃,air pressure is 2MPa and reaction time is 3d,oxygen dosage of tail gas was reduced from 21.0% to 10.0% and acid number of heavy oil was raised from 3.96mgKOH/g to 13.50mgKOH/g and viscosity was raised from 2.004Pa·S to 11.48Pa·S.When oxidized oil was added 1.2(w)% SW-1 additive and 40(w)% water,stirring was operated under constant temperature,O/W emulsified oil was generated,and viscosity was finally reduced to 0.067Pa·S and the total ratio of reduced viscosity was 96.66%.
为提高埕北稠油油藏注空气采油过程的安全性,进行了注空气低温氧化实验,研究了温度和催化剂对稠油低温氧化过程的影响。基于Arrhenius方程,确定出了稠油在催化和非催化条件下的反应动力学参数—反应级数、频率因子和反应活化能。实验结果表明,3种催化剂的催化活性由强到弱依次为ZnL、MnL、FeL,反应温度越高,稠油的耗氧速率越高。同非催化氧化相比,ZnL催化氧化反应的反应级数由0级变为1级,反应活化能由92.385 k J/mol降至77.576 k J/mol。ZnL可显著提高稠油的耗氧速率,对保障注空气采油全过程的安全性具有重要意义。
