Parameter

Unit

Range of changes

Minimum

Maximum

average

Offset scale

Ratio of changes

Drilled

m

29.6

0

29.6

10.36

9.033

0.872

ROP

ft/hr

38.49

1.3

39.79

11.75

8.31

0.707

N

RPM

110

20

130

103.89

19.938

0.192

WOB

Klbs

32.5

1

33.5

18.96

7.381

0.389

Q

GPM

300

650

950

866.75

49.171

0.057

ΔP

psi

510

10

520

225.49

81.034

0.359

TQ

Kft.lbs

20

7

27

15.04

4.694

0.312

MSE

ksi

3366.97

19.62

3386.59

494.53

468.977

0.948