Injection well

Oil well

Correlation coefficient

water injection— water production

Injection well

Oil well

Correlation coefficient

water injection— water production

W7

X1

0.76

W9

X2

0.74

X2

0.60

X3

0.63

X8

0.79

X4

0.74

X13

0.69

X8

0.85

X26

0.64

X10

0.63

X27

0.76

X15

0.63