8/19/2019 Recommended Rotating Hours for Jars

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RECOMMENDATIONS: RotatingHours - Tool O.D. to Holes Sizes

Recommended R otating Jar H ours Mechanical Jar & Hydraulic Drilling Jars

Nominal Jar Size 9-1/2” 8” 6-1/2” 6-1/4” 4-3/4”

Hole Size Hrs Hole Size Hrs Hole Size Hrs Hole Size Hrs Hole Size Hrs

Straight Hole  12-1/4

17-1/2

26

250

9-7/8

12-1/4

17-1/2

250

8-3/4

9-7/8

12-1/4

250

7-7/8

8-3/4

9-7/8

250

6-1/8

6-3/4

7-7/8

250

Directional Hole  12-1/4

17-1/2

26

200

150

100

9-7/8

12-1/4

17-1/2

250

150

100

9-7/8

12-1/4

200

150

8-3/4

9-7/8

250

200

6-3/4

7-7/8

200

150

Hard/Abrasive Formation   Same as

Directional

Hole

Same as

Directional

Hole

Same as

Directional

Hole

Same as

Directional

Hole

Same as

Directional

Hole

Milling Operations   50 50 50 50 50

100 – 200 F   250 250 250 250 250

200 – 300 F   250 250 250 250 250

300 – 400 F   200 200 200 200 200

400+ F   100 150 150 150 150

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