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					Basis: (%H2O/100)*TDSppm/2.85=PTB
PTB Inlet Crude Calc                                  PTB Out 1stg Dsalt
ppm TDS degassed crude                     200000     %Eff 1st Stg Dsalt                    0.75
%H2O Inlet Crude, Wu                           3.0    ppm 2nd Stg Dsalt                   26438
PTB inlet Crude                             2424.0    %BSW 1st Stg Dsalt                     0.3
                                                      PTB out 1st Stg Dsalt                 37.1
PTB Wash Water Calc
ppm TDS Wash H2O                                80    Calc ppm TDS Recy 2nd stg Desalt
%Wash H2O, WW                                  2.0    PTB Wash Water                          0.6
PTB Wash Water                                 0.6    PTB Outlet Crude                        0.2
                                                      PTB out 1st Stg Dsalt                  37.1
PTB Outlet Crude Calc                                 %Recycled H2O, Rw                       1.4
% Water in Treated Crude, Wt                    0.2   ppm 2nd stg Dsalt                     7624
ppm TDS Wash H2O                                 80   Conv Criteria                      18813.1
%Eff 2nd Stg Dsalt                             0.75
PTB Outlet Crude                          0.213333    PiDC Dehyd
                                                      %H2O Inlet Crude, Wu                   3.0
Calc ppm 1Dsalt Recy H2O                              ppm TDS degassed crude             200000
PTB SW Disposal Calc                        2424.3    %Recycled H2O, Rw                      2.0
PTB inlet Crude                             2424.0    ppm 1st Dsalt Recyc                     61
%Recycled H2O, Rw                              2.0    PTB PiDC Dehyd out                  2265.1
%'BSW Dehyd Out                                0.3    ppm PiDC Dehyd out                 129113
%Eff Dehyd                                    0.82
ppm 1st Dsalt Recyc                             61    PiDC 1st Desalt
                                                      %BSW dehy out                           0.3
PTB SW Disposal Calc                        2424.3    ppm PiDC Dehyd out                 129113
%H2O of Inlet Crude Disposal Water rate        5.4    %Recycled H2O, Rw                       2.0
                                                      ppm 2nd stg Dsalt                   7624.4
                                                      PTB PiDC 1Desaltout                   199.2
                                                      ppm PiDC 1Desalt out                 24685
MB Desalter Calc for Salt in Treated Crude
%H2O Inlet Crude, Wu                             3.0
ppm TDS degassed crude                       200000
%Wash H2O, WW                                    2.0
ppm TDS Wash H2O                                  80
% Water in Treated Crude, Wt                     0.2
%'BSW Dehyd Out                                  0.3
%Eff Dehyd                                      0.82
%BSW 1st Stg Dsalt                               0.3
%Eff 1st Stg Dsalt                              0.75
%Recycled H2O, Rw                                2.0
%Eff 2nd Stg Dsalt                              0.75


%wc * ppm/2.85=PTB




PiDC 2nd Desalt
%BSW 1st Desalt out                               0.2
ppm PiDC Dehyd out                           24685.5
%Wash H2O, WW                                     1.4
ppm TDS Wash H2O                              5000.0
PTB PiDC 2Desaltout                              42.4
ppm PiDC 2Desalt out                            7545
MB Desalter Calc for Salt in Treated Crude                     Calc Macro                wc * ppm/2.85=PTB
%H2O Inlet Crude, Wu                               3.0
ppm TDS degassed crude                        200,000
%Wash H2O, WW                                    2.00
ppm TDS Wash H2O                                    80
% BSW in Treated Crude, Wt                         0.2
%'BSW Dehyd Out                                    0.3
%Eff Dehyd                                       0.82
%BSW 1st Stg Dsalt                                 0.3
%Eff 1st Stg Dsalt                               0.75
%Recycled H2O, Rw                                2.00
%Eff 2nd Stg Dsalt                               0.75
PTB Outlet Crude                                   0.2
ppm 2nd stg Dsalt Recy to 1Dsal Pdc            7,624.4
PTB Wash Water                                     0.6
ppm 1st Dsalt Recyc                               60.7
PTB SW Disposal Calc                            2424.3
%H2O of Inlet Crude Disposal Water rate            5.4
PTB out 1st Stg Dsalt                             37.1
%Recycled H2O, Rw                                  1.4   Dehydrator Bal.   %H2O    PTB       ppm
ppm 2nd stg Dsalt                              7,624.4   Wet Crude in PdC1    3.00   2105.3 200,000.0
PTB PiDC Dehyd out                              2265.1   Recycle2 in LCV2     2.55     335.4   37,480.3
ppm PiDC Dehyd out                           129,112.9   sum                      5.55      2440.6
PTB PiDC 1Desaltout                              199.2   Crude Out PdC2           0.75         181.5    68,966.3
ppm PiDC 1Desalt out                          24,685.5   Inj. H2O out LCV1        4.80      2079.5     123,471.7
PTB PiDC 2Desaltout                               42.4   sum                      5.55      2261.0
ppm PiDC 2Desalt out                           7,544.5
                                                         Overall Balance     %H2O        PTB
                                                         Wet Crude in PdC1        3.00      2105.3     200,000.0
                                                         Wash H2O in PdC3         2.00           0.6        80.0
                                                         sum                      5.00     2105.8
                                                         Desalt. Crude Out        0.20       26.3       37,480.3
                                                         Inj. H2O out LCV1        4.80      2079.5     123,471.7
                                                         sum                      5.00      2105.8


                                                         Primary Value       Result
                                                         Reused Primary      Reused Result
1st Desalter Bal. %H2O    PTB    ppm
Crude In PdiC2       0.75 324.9 123,471.7
Recy3.H2O In PdC2    2.00    0.6     80.0
sum                      2.75    325.5
Recyc.2 Out LCV2         2.55    299.2      33,438.3
Crude Out PdC3           0.20     26.3      37,480.3
sum                      2.75    325.5


2nd Desalter Bal.    %H2O       PTB       ppm
Crude In PdC3            0.20     26.3      37,480.3
Wash H2O In PdC3         2.00       0.6         80.0
sum                      2.20     26.9
Recyc.3 Out LCV3         2.00       0.6         80.0
Desalted Crude Out       0.20     26.3      37,480.3
sum                      2.20     26.9


Mixing Eff               0.90
Mixed PdICDesal      33732.3 diff
Mixed w/ eff         37480.3        0.0 <goal seek&set zero chg
                                          <PTB desal Crude Out
Mixing Eff               1.00
Mixed PdICDesal      ####### diff
Mixed w/ eff         ####### #####
Dehydrator Balance   %H2O PTB          ppm         Desalter Balance     %H2O     PTB ppm
Wet Crude in           3.00     2105.3 200,000.0   Crude In PdiC          0.75   179.9 68,363.2
Recycle In             6.50      193.6   8,489.3   Wash Water In          6.00     1.1     50.0
sum                    9.50     2298.9             sum                    6.75   181.0
Crude Out PdiC         0.75      181.5 68,966.3    Recycle Out            6.50   173.5  7,607.7
Inj. H2O out           8.75     2098.9 68,363.2    Desalted Crude Out     0.25     7.4  8,489.3
sum                    9.50     2280.4             sum                    6.75   181.0


Overall Balance    %H2O PTB                        Mixing Eff             0.90
Wet Crude in         3.00       2105.3 200,000.0   Mixed PdICDesal      7640.4 diff
Wash Water in        6.00          1.1      50.0   Mixed w/ eff         8489.3      0.0 <goal seek&set zero chg
sum                  9.00       2106.3                                                  <PTB desal Crude Out
Desalted Crude Out   0.25          7.4   8,489.3   Mixing Eff         1.00
Inj. H2O out         8.75       2098.9 68,363.2    Mixed PdICDesal 68966.3 diff
sum                  9.00       2106.3             Mixed w/ eff    68966.3      0.0

Primary Value                                      Result
Reused Primary                                     Reused Result
<goal seek&set zero chg
<PTB desal Crude Out
Convert Calculators                                                          Petrolite Formula
                               SG         Lbs/bbl                            %wc * ppm/2.85=PTB
SG to lb/bbl                         1.17       410                          bsw/100*ppm/2.85=PTB

                               ppm     LbsSALT/bbl
ppm TDS #salt/bbl                224550 92.0655                                           WC%
                                                                             inlet dehy           5
                               ppm        PTB                                recyc                4
ppm to #salt/1000bbl                       50         18                            sum           9
('Wt/(Wu+WW+Rw))*(Su+WuSrw/100+WW Sww/100+RwSrw/100)                         Out BSW
                                                                              1.18              0.1
Petreco Desalter Formula for Salt in Treated Crude                            1.16
% Water in Treated Crude, Wt              0.2        0.2     0.2       0.2                      0.1
                                                                             inlet desalt y = 0.7571x + 1
                                                                              1.14
PTB in Inlet Crude, Su                92066      92066   92066     92066     recyc ww          R² 4 1
                                                                                                  =
%H2O Inlet Crude, Wu                      3.3        5.2     4.3       3.4    1.12 sum          4.1
PTB of Wash H2O, Sww                       18         18      18        18     1.1
                                                                             Out BSW            0.1
%Wash H2O, WW                            1.35       1.45     1.4      1.35   Out BSW w/eff
                                                                              1.08
PTB 1st Stg recyc. H2O, Srw             8500       9500    9000      8500     1.06
%Recycled H2O, Rw                        1.35       1.45     1.4      1.35                WC%
                                                                              1.04
PTB 2ndt Stg recyc. H2O, Srw            1500       2500    2500      1500    inlet dehy           5
PTB, treated crude, St-1               135.6      148.1   143.3     136.6     1.02
                                                                             recyc                4
PTB w/St1eff                           169.5      185.2   179.2     170.8        1 sum            9
PTB St2                                  24.5       26.8    26.8      24.7   Out BSW
                                                                              0.98              0.1
PTB 'w/St2eff                            40.8       44.7    44.6      41.1          0      0.05
PTB 'St3                                  5.3        5.5     5.6       5.3   inlet desalt       0.1
PTB 'w/St3eff                             8.8        9.1     9.3       8.9   recyc ww             4
                                                                                    sum         4.1
                                                                             Out BSW            0.1
                                                                             Out BSW w/eff
                                 %wc *(1+.757ppm/1E6) ppm/2.85=PTB
ppm/2.85=PTB


            TDS, ppm PTB
              200000    3508.8                                        0.22455   1.17 1.169984
               13000     182.5                                              0      1
                        3691.2
                          41.0 out dehyd

               116850
   y = 0.7571x + 1          41.0
        R² = 1    8000     112.3
                           153.3
                             3.7 out dehyd
                                                   Series1
                             4.5
                                                   Linear (Series1)
            TDS, ppm PTB
              200000      3508.8
               13000       182.5
                          3691.2
                            41.0 out dehyd
             0.1      0.15      0.2      0.25
              116850        41.0
                 8000      112.3
                           153.3
                             3.7 out dehyd
                             4.5

				
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