Page 60 - 6685
P. 60

where H f – H bh - Khristianovich difference functions; r r w - reduce
          the radius of well.
                  Khristianovich  difference  functions  determined  by  the
          formula
                               f Р  F ( )
                  H    H          oil     dP .                                (3.35)
                          bh
                     f
                              Р  oil ( Р) ( Р)
                               bh
                            kh
                         2    A P  P  
                  OrQ             f   bh  ,                                          (3.36)
                               ln  R d
                                  r r  w
          rewriting the formula (3.36), we obtain
                       2  P   P  
                         kh
                  Q         f    bh  ,
                           ln  R d
                          A   r r w
                       
          where        - a fictional viscosity.
                  f
                       А
                  Using formulas (3.34) and (3.36), we get
                   1    P   P bh    -  coefficient  to  increase  filtration
                         f
                   A   H    H bh
                         f
          resistance due to the two-phase filtration flow.
                   Hlohovskyy, Rosenberg got the formula for determining
          the coefficient A
                  А=0,944-21,43,
                        
                         gas
          where    р     ,  р  solubility factor of gas in the oil.
                          oil
                   Based on the formula (3.35) for more oil Zinovyeva was
          showed  the  possibility  of  approximation  of  the  equation  straight
          line
                     F oil       аР 
                    oil         b ,                                                (3.37)
                       Р
                           Р
                         b




                                         60
   55   56   57   58   59   60   61   62   63   64   65