Cap02-2.01_gen_1-1_1-5.p3

Basic Material

Schlumberger

Resistivity of NaCl Solutions

Gen-9

Grains/gal at 75°F

200

10

300

15

400

20

8

5 4 3 2

500 600 700 800

1

100 0 120 0 140 0 170 0 200 0

Resistivity of solution (ohm-m)

0.8 0.6 0.5 0.4

300 0

0.3

400 0 500 0 600 0 700 0 800 0 10, 000 12, 00 14, 0 000 17, 00 20, 0 000

0.2

0.1 0.08 0.06 0.05 0.04 0.03 0.02

300 ,00 0

0.01 °F 50 °C 10

75 20

30

100 40

125 150 200 50 60 70 80 90 100

25 30 40 50

100

150 200 250 300 400 500

1000

30, 000

1500

40, 000 50, 000 60, 0 70, 00 00 80, 0 00 100 0 ,0 120 00 , 140 000 ,0 170 00 , 200 000 , 250 000 280,000 ,00 0

2000

250 300 350 400 120 140 160 180 200

NaCl concentration (ppm or grains/gal)

10

6

Gen

ppm

Conversion approximated by R2 = R1 [(T1 + 6.77)/(T2 + 6.77)]°F or R2 = R1 [(T1 + 21.5)/(T2 + 21.5)]°C

2500 3000 4000 5000

10,000 15,000 20,000

Temperature (°F or °C) © Schlumberger

1-5