Source of variance

Sum of squares of deviations

Freedom

Variance

F

Fa

Significant level

Well spacing

22

2

11

-

F0.01(2, 8) = 8.6

o

Vertical horizontal

356

2

178

6.3

F0.05(2, 8) = 4.5

**

Fluid production

88

2

44

1.7

F0.1(2, 8) = 3.1

**

Horizontal well location

63

2

32

1.2

F0.25(2, 8) = 1.7

**

Oil water viscosity

801

2

401

14.2

-

***

Error

51

2

26

-

-

-

The sum

1383

-

-

-

-

-