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Well head tools
Drill stem tools
Directional well tools
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Downhole servicing tools
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Accident remedy tools
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H Type Safety Joint

    The H type safety joint , which is installed on the position required for subsurface drill stem and can bear in fishing operation all kinds of loads for pulling or pressing and used to transmit torque , is a subsurface safety equipment. In down hole operation, in case of being needed ,the safety joint is easy to be discharged off so as to take out the drill stem above it .It is easy to butt the safety joint to go on fishing operation when running in hole again .

Technical parameters and specifications

Type O.D.(mm) Thread connection I.D.(mm) Max working
pull load(KN)
Max working
torque (KN・m)
AH-105 105 NC31(2 7/8IF) 38 1340 12.70
AH-121(127) 121(127) NC38(3 1/2IF) 38 1400 17.65
AH-156 156 NC50(4 1/2IF) 54 1500 35.00
AH-159 159 NC50(4 1/2IF) 70 1600 35.00
AH-178 178 5 1/2FH 76 2000 40.00
AH-203 203 6 5/8REG 76 2500 44.00

Copyright:Mudanjiang Construction Material Petroleum Machinery Co.,Ltd    HEI ICP 11006197 No. -1    Technical support:Mudanjiang excellence network company