Numerical Simulation of Chemical Planar Transport Based on Finite#br#
Difference Method

doi:10.11885/j.issn.1674-5086.2015.03.04.09

Abstract

Abstract:

In the chemical flooding process，the concentration distribution of chemical agents is essential for the displacement of
oil. The ideal situation would entail carefully designed chemical injection parameters（injection concentration，injection volume
and injection rate）so that the chemical agent concentration in the formation is close to the optimum concentration determined
by laboratory tests，and thus achieving the most efficient oil displacement results. In addition to normal convection of chemical
agents in the formation，diffusion and adsorption will also happen. While for planar percolation flow，the different percolation
flow velocity leads to the chemical planar concentration being more complex than that of one dimension. In this paper，based on
the Finite Difference Method（FDM）and Jacobian Method，according to Darcy′s law，planar flow velocity and pressure field
are determined. And combined with the solved velocity field equation and the chemical agent transport convection-diffusion
equation，the concentration field of chemical agents is solved. Simulation results show chemical concentration at the different
time. It also studies the influence on the distribution of chemical flooding for different parameters including migration-lag
coefficient，dispersion coefficient and the volume of chemical injection.

Key words: chemical flooding, numerical simulation, finite difference, coupling equation, transport

CLC Number:

TE132

Gou Feifei1，2*, Liu Jianjun3, Liu Weidong2，4, Xiao Hanmin2，4, Luo Litao1，2. Numerical Simulation of Chemical Planar Transport Based on Finite#br# Difference Method[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2015.03.04.09.

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Numerical Simulation of Chemical Planar Transport Based on Finite#br# Difference Method

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