Page 155 - Reservoir Formation Damage
P. 155

Multi-Phase and Multi-Species Transport in Porous Media  137







                                                                        (7-49)
                = v-




             Invoking  Eq.  7-33,  Eq.  7-46  can  be  written  in  an  alternative  form  as:


                      dHj
                p,.[e y

                V  • (EJ  k  • V7})+ EJ  +                              (7-50)
                                      L«J.a
                                     a=l
                                     a*;

             The  equation  of  motion  given  by  Chase  and Willis  (1992),  for  deforming
             porous  matrix  can  be  written  as  following:




                                                                        (7-51)


             where  T 5  is  the  shear  stress  tensor  for  the  solid  matrix.
                The  jump  mass  balance  equations,  given  by  Slattery  (1972)  can  be
             simplified  to  express  the  boundary  conditions  as:


                                                                        (7-52)



                                                                        (7-53)



                                                                        (7-54)


             The  superscript a denotes  a quantity associated  with the dividing  surface,
             which  is  moving  at  a  macroscopic  velocity  of  w°,  and n a  is  the  unit
             vector  normal  to  the  dividing  surface.  r°,  rf  and  r?  are  the  rates  of
             addition  of  mass  of  the  porous  matrix,  the  th  phase,  and  the  species  i
   150   151   152   153   154   155   156   157   158   159   160