Page 235 - Geochemistry of Oil Field Waters
P. 235

Potassium
                                      -
                                    Copper
                                      ~
                                    Chromium
                                         md   q75   md   q25   q75   md   q75   q75   ~   ~   400   300   180   75p   lop   <lop   ND   ND   3P   400   300   160   <25p   <25p   <25p   ND   < 2P   300   <50   ND   <1   <1   ND*~  ND*~  <5P   < 1P   2P   1,000   300   ND   450p   150p   ND   ND   25P   35P   500   350   120   ND   ND   ND   10P   1P   4P   750   400   160   ND   ND   ND   10P   2P   4P   400   300   200   ND   ND   ND   5P   < 1P   4P   450   300   170   ND   ND   15~   4~   < 1P   4P   650   400   200   ND   15~   4~   3P
                                           ~
                                    Cobalt   ND   ND   ND*~   ND   ND   ND   ND   ND   ND   ND   ND   ND   <5P   ND   ND   ND
                                      -      119   131   116   1   24   173   215   168   72   128   203   88   296   11   11   15   30   quartile (4)
                                    Dissolved solids (gll)   md   -  q75   98   70   69   30   66   27   222   173   111   61   143   70   115   80   55   42   67   53   137   51   59   9   173   115   5   3   5   4   5   3   18   5   35   -












                                    Number   of   samples   22   79   88   24   148   74   34   15   21   118   25   55   22   28   18   116   -   -   Rittenhouse et al., 1969)and  data, less sensitive methods of analysis used.


                              (continued)*'                                                            .-.      *3 Includes Oklahoma Platform and Ardmore Basin.





                              TABLE 7.XIV     Illinois Basin  Louisiana and Texas Gulf   Coast   East Texas   North Texas   West Texas and New   Mexico   Permian only   Pennsylvanian  only   Silurian and Devonian   only   Ordovician and   Cambrian only   Anadarko Basin*3   Williston Basin, post-   Paleozoic   Williston Basin,   Paleozoic   Powder River Basin   Other Wyoming   Colorado   California   Sea water   Estimated detection   limit   -   __   *' Medium (md -   No   *'
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