Numerical Simulation of the Effects of Slurry Properties on Displacement Efficiency

ZHANG Duoyuan


In the course of cementing, improving the displacement efficiency in the annular is a basic premise to prevent drilling fluid channeling, guarantee the bonding strength of set cement and improve the sealing property of cement sheath. Based on the CFD software of FLUENT, effects of rheological parameters on the displacement efficiency were studied by means of numerical simulation. For Bingham Model or Power Low Model fluid, the simulation results show that increasing consistency coefficient of cement slurry, liquidity index of drilling fluid, plastic viscosity of cement slurry and the yield point of cement slurry or drilling fluid will help to improve the displacement efficiency. On the contrary, increasing liquidity index of cement slurry, consistency coefficient of drilling fluid or increasing plastic viscosity of drilling fluid will decrease the displacement efficiency.
Key words: Displacement efficiency; Slurry properties; Numerical simulation; FLUENT


Displacement efficiency; Slurry properties; Numerical simulation; FLUENT

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