70 OIL-FIELD WATERS IN SAN JOAQUIN VALLEY, CAL. 
Table 7. —Analyses of essentially meteoric water altered by action of oil (reversed type), 
from wells in the Coalinga and Midway oil fields, Cal., 
PROPERTIES OF REACTION IN PER CENT. 
Primary sal inity. 
Secondary salinity.. 
Primary alkalinity. 
Secondary alkalinity. 
Per cent of rSC>4 in rSCL-t-rCl.. 
Ratio of rC 03 +rHC 03 torS 04 . 
CONSTITUENTS IN PARTS PER MILLION. 
Sodium (Na). 
Potassium (K). 
Calcium (Ca). 
Magnesium (Mg).... 
Iron (Fe). 
Aluminum (Al). 
Sulphate (SO*). 
Chloride (Cl). 
Carbonate (CO3).... 
Bicarbonate (HCO3). 
Silica (SiC> 2 ). 
Hydrogen sulphide (II 2 S). 
REACTING VALUES IN PER CENT. 
Alkalies: 
Sodium (rNa). 
Potassium (rK)./.. 
Alkaline earths: 
Calcium (rCa). 
Magnesium (rMg). 
Strong acids: 
Sulphate (rSOJ. 
Chloride (rCl). 
Weak acids: 
Carbonate (rCC> 3 ). 
Bicarbonate (rHCOs). 
ANALYSIS AS REPORTED .d 
Sodium sulphate. 
Sodium chloride. 
Sodium carbonate.. 
Calcium sulphate.. 
Calcium carbonate. 
Magnesium sulphate_ 
Magnesium chloride. 
Magnesium carbonate... 
Iron oxide and alumina. 
Silica. 
Hydrogen sulphide. 
40 
1.4 
0 
88.4 
10.2 
11.4 
493 
al, 087 
25 
50 
} 63.9 
4.1 
22 
cl, 555 
41 
14.4 
0 
83.6 
2.0 
36.0 
16.5 
al,007 
10 
6.3 
61.7 
68 
2,815 
14 
111 
147 
cl, 148 
19 
a44.9 
1.2 
3.9 
.1 
.6 
c 49.3 
.98 
145.25 
.34 
3.41 
.02 
.92 
9.28 
.23 
3.97 
164.40 
.80 
2,450 
5 
42 
33.8 
0 
64.2 
2.0 
43 
27.8 
0 
69.8 
2.4 
44 
5.3 
36.8 
3,295 
23 
31 
19 
Trace. 
135 
1,695 
36 
5,956 
46 
8,214 
a 49.0 
.5 
.5 
2.6 
4.6 
C42.8 
9.57 
14.17 
115.38 
Trace. 
1.46 
1.28 
.10 
1.13 
143.09 
.29 
48.8 
.2 
.5 
.5 
.9 
16.0 
.4 
32.7 
1.4 
180 
o718 
7.2 
5 
5.8 
310 
c691 
10 
1,747 
o48.8 
.6 
.6 
.2 
13.7 
c36.1 
40.2 
0 
57.8 
2.0 
1.5 
99 
2,052 
9.7 
19 
11 
Trace. 
3.1 
28 
1,293 
342 
2,732 
72 
5,175.8 
.50 
29.93 
69.04 
1.04 
1.01 
”.*59 
102.11 
48.9 
.1 
.5 
.5 
.3 
19.8 
6.2 
23.7 
45 
22.4 
0 
60.4 
17.2 
Trace. 
o1,010 
56 
77 
Trace. 
421 
c 1,236 
Trace. 
2,800 
Present. 
o41.4 
2.6 
6.C 
11.2 
c38.8 
a Reported and calculated as sodium but includes potassium. 
6 F62O3-I-AI2O3. 
c Reported and calculated as carbonate but probably in part bicarbonate, 
o In hypothetic combinations, in grains per U. S. gallon. 
Coalinga field: 
40. California Oilfields (Ltd.) well 1, sec. 34, T. 19 S R. 15 E. Analyst, Smith, Emery & Co., Novem¬ 
ber, 1915. Authority, California Oilfields (Ltd.). ’ 
4L (Ltd.) well 31, sec 34 T. 19 S., R. 15 E. Water from about 2,156 feet, or a 
C^Iiforaia^Oflfield^(Ltd 1 ) 10llzone * Anal >’ st > Smith > Emery & Co., November, 1915. Authority, 
42. Kern Trading & Oil Co. well, in sec. 11, T. 20 S., R. 15 E. Water from 4,022 feet or near base of 
ao lowe r oil zone ® ara P led b y G - s -Rogers, October, 1915. Analyst, S. C. Dinsmore 
43. Kern Trading & Oil Co. water well 1, sec. 15, T. 20 S., R. 14 E. Water from 410 feet Well is 
Amiyst^Kern^radhig 1 ^ ^ 1 ^ ocene ^) and is located close to the outcrop of the water sand. 
Midway field: ’ 
44. G ^ water ^ ; sec ; T- 31 S -> R. 22 E. Water from brown shale 
?H’p° p Probably over 3,000 feet below horizon of main oil zone. Temperature, 
„ 434 Analyst, S.C. Dinsmore. 
P and ^ T - 1 31 ?•’ P- 22 E. Water from about 500 feet, or in tar sand zone 
cm Co° t0 300 fe6t ab e the 0ll> An alyst, Smith, Emery & Co., May, 1915. Authority, Potter 
