Title :
Numerical Simulation Study on Micro Sweep Efficiency of Viscoelastic Polymer Solutions Flow in Dead Ends
Author :
Huiying, Zhong ; Hongjun, Yin
Author_Institution :
Key Lab. of Enhanced Oil & Gas Recovery under Minist. of Educ., Daqing Pet. Inst., Daqing, China
Abstract :
In this paper, the mathematical model is established considering the interfacial tension of rock, concluding the stream function equation, vorticity equation and constitutive equation, the mathematical model is discretized by finite difference method. The velocity contour of viscoelastic fluid flow in dead ends is drawn. The micro sweep efficiency are calculated by velocity method. The study results show that the micro sweep efficiency increases with the viscoleasticity, absorption interfacial tension. The micro sweep efficiency decreases with pore throat ratio increasing.
Keywords :
finite difference methods; flow simulation; non-Newtonian flow; polymer solutions; rocks; surface tension; absorption interfacial tension; constitutive equation; finite difference method; microsweep efficiency; pore throat ratio; rock; stream function equation; velocity contour; viscoelastic fluid flow; viscoelastic polymer solutions flow; viscoleasticity; vorticity equation; Difference equations; Elasticity; Finite difference methods; Mathematical model; Maxwell equations; Numerical simulation; Petroleum; Polymers; Reservoirs; Viscosity; interfacial tension; micro sweep efficiency; pore throat ratio; viscoelatic polymer solutions;
Conference_Titel :
Energy and Environment Technology, 2009. ICEET '09. International Conference on
Conference_Location :
Guilin, Guangxi
Print_ISBN :
978-0-7695-3819-8
DOI :
10.1109/ICEET.2009.568
