Page 236 - Geochemistry of Oil Field Waters

q75 400 400 300 1,000 500 750 400 450 650 500 400 <5,000 400 700 400 70

md 300 300 <50 300 350 400 300 300 400 250 300 800 300 300 300 45 380 50
Potassium - q25 180 160 ND ND 120 160 200 170 200 20 200 .400 200 ND 200 ND otherwise ppm.

q75 75p <25p <1 450p 10P 10P 5P 15~ 15~ 25p 2Op 5P 70p 30 <25p 2Op

lop <25p 150p 1P 2P < 1P 4~ 4~ lop <25p 3P <25p <25p 5p lp-15p 1P
md <1 ND

Copper <lop <25p < 1P 25P ND ND ND < 1P N 25~ 4 1P < <25p ND <25p ND <25p 2p

q75 3P < 2P 2P 35P 4P 4P 4P 4P 3P < 2P 15~ < 6~ 20 < 6; 15p

5p IP ~~
~
ND 0.04~-0.07~ concentrations in each area; ND = below detection 1imits;p = concentration in ppb,
Chromium ~

q75 ND ND*~ ND ND ND ND ND <5P ND <5P ND <5P ND <5P 2P

~ ND*~ <5P

md ND ND ND ND ND ND ND ND ND <5P ND <5P ND <5P ND 0.27~ 1P
~
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 *'