Safety Sub

AJT series Safety sub are installed on the subsurface drill stem and the can bear in fishing operation. Suitable for onshore and offshore operations.

Details

The AJT series safety sub were developed to provide the market with more reliable technology and more hoisting performance. Installed on the subsurface drill stem and can bear in fishing operations. It can fishing with all kinds of loads for pulling or pressing, also could be used to transmit torque. It is a subsurface safety equipment. In downhole operation, in case of being needed, the safety joint is easy to be discharged off, to take out the drill stem above it. Included but not limited by the advantages mentioned, AJT series safety sub might be your best choice.

 

General Features

•  Suitable for cold area and desert environment
•  Suitable for onshore or offshore operations
•  Wide range of selection for different operations

 

Main aramaters

Outside Diameter: 4-1/8” – 8” (105 mm - 203 mm)

 

Parameters:

Type 5" 5-1/2" 7" 9-5/8"
OD (mm) 93.5 103 127 155.5
ID (mm) 45 50.5 57 79
Length (mm) 1186 1141 1263 1196
Tensile (kN) 89 89 111 177
Working Pressure (MPa) 70 70 70 70
Working Pressure (℃) -29~+177 -29~+177 -29~+177 -29~+177
Tensile Strength (kN) 623 691 1156.4 1636.8
Bust Strength (MPa) 130 120 100 117
Collapse Resistance (MPa) 120 110 93 108
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