Page 44 - Enhanced Oil Recovery in Shale and Tight Reservoirs
P. 44

32                             Enhanced Oil Recovery in Shale and Tight Reservoirs


                                       10
                                       Cycle  50.51%  49.06%  43.39%


                                       9
                                       Cycle  48.08%  46.27%  40.34%

                                     day).  8  45.40%  43.24%  37.06%

                                     1  Cycle
                                     for  7
                                     (soaking  Cycle  42.46%  40.28%  33.66%



                                     experiment  6  Cycle  39.51%  37.10%  30.34%



                                     round  5  Cycle  36.22%  33.88%  26.73%

                                     first  4
                                     the  Cycle  32.82%  30.23%  24.01%
                                     of
                                     cycles  3  Cycle  28.91%  26.40%  19.74%

                                     recovery  2


                                     huff-n-puff  Cycle  1  23.75%  22.25%  15.34%



                                     10  Cycle  18.67%  15.39%  9.27%
                                     for
                                     data  hrs
                                     RF  time,
                                     Accumulative  depletion  0.05  4  40




                                     2.2  p  No.
                                     Table  Core  #1  EF  #2  EF  #3  EF
   39   40   41   42   43   44   45   46   47   48   49