Based on deep analysis of ASP/oil emulsions flow behavior characteristic,a mathematical description of non-Newtonian emulsion was developed,and variation of rheological behaviors along the percolation flow direction w...Based on deep analysis of ASP/oil emulsions flow behavior characteristic,a mathematical description of non-Newtonian emulsion was developed,and variation of rheological behaviors along the percolation flow direction was given.The effects of emulsions rheological behavior on oil recovery were quantity researched by a 2-D positive rhythm profile geological model.The result shows that the high viscosity and reduction of water phase permeability by emulsification can improve low-middle layer flow rate and enhance sweep efficiency,and the enhancement degree is related with emulsification degree.The study result can be used as reference for scheme design and production performance forecast during ASP flooding.展开更多
基金Project(2005CB221300) supported by the Major State Basic Research Development Program of China
文摘Based on deep analysis of ASP/oil emulsions flow behavior characteristic,a mathematical description of non-Newtonian emulsion was developed,and variation of rheological behaviors along the percolation flow direction was given.The effects of emulsions rheological behavior on oil recovery were quantity researched by a 2-D positive rhythm profile geological model.The result shows that the high viscosity and reduction of water phase permeability by emulsification can improve low-middle layer flow rate and enhance sweep efficiency,and the enhancement degree is related with emulsification degree.The study result can be used as reference for scheme design and production performance forecast during ASP flooding.
文摘钢渣碳酸化是一种CO_2矿化利用的有效方法。通过添加低浓度碱,可有效提高钢渣碳酸化转化效率。围绕低浓度碱介质中钢渣碳酸化过程,系统研究了搅拌转速、低浓度碱浓度、反应温度等工艺条件对钢渣碳酸化转化效率的影响。在搅拌转速为450 r/min,碱浓度为20 g/L,反应温度为70℃等优化工艺条件下可实现钢渣碳酸化转化效率为49.72%,是传统水介质体系的1.8倍以上,且反应条件温和,介质可循环利用。进一步开展了钢渣碳酸化反应动力学研究,结果表明钢渣碳酸化反应为内扩散控制,计算得到表观活化能为22.48 k J/mol。
