Lifting Sub

Lifting Sub

Model No: API certificate
Name: Lifting Sub
Application: land and offshore wells
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  • Description
  • Specifications
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Drilling tool lifting sub is a special tool for lifting drilling tools in oil, natural gas and geological exploration drilling operations.

There are two types of lifting sub-sections of integral structure: A and B.

Type A is an 18-degree shoulder, and B is a 90-degree shoulder.

Choose A or B lifting sub-sections according to the elevator structure at the time of use.

All threads comply with API standard specifications.

The external profile above the lifting sub is similar to the completion tubing, allowing the rig lift to safely lift the assembled tool string.

Nominal size ID mm External thread joint Lift side
in mm Thread Type OD mm Chamfer diameter mm Clamp bite length mm OD mm Clamp bite length mm
2  7/8 73 31.8 NC23 79.4 76.2 250 111.1 100
2  7/8 73 44.5 NC26(2  3/8) 88.9 82.9 250 111.1 100
3  1/2 89 54 NC31(2  7/8) 104.8 100.4 250 127 100
3  1/2 89 50.8 NC35 120.7 114.7 250 127 100
3  1/2 89 68.3 NC38(3  1/2) 127 121 250 127 100
5 127 71.4 NC44 152.4 144.5 250 168.3 100
5 127 71.4 NC44 158.8 149.2 250 168.3 100
5 127 82.6 NC46(4IF) 158.8 150 250 168.3 100
5 127 82.6 NC46(4IF) 165.1 154.8 250 168.3 100
5 127 82.6 NC46(4IF) 171.5 159.5 250 168.3 100
5 127 82.6 NC50(4  1/2IF) 177.8 164.7 250 168.3 100
5 127 82.6 NC50(4  1/2IF) 184.2 169.5 250 168.3 100
5 127 82.6 NC56 196.9 185.3 300 168.3 100
5 127 82.6 NC56 203.2 190.1 300 168.3 100
5 127 82.6 6  5/8REG 209.6 195.7 300 168.3 100
5 127 95.3 NC61 228.6 212.7 300 168.3 100
5 127 95.3 7  5/8REG 241.3 223.8 300 168.3 100
5 127 95.3 NC70 247.7 232.6 300 168.3 100
5 127 95.3 NC70 254 237.3 300 168.3 100
5 127 95.3 NC77 279.4 260.7 300 168.3 100
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