Poltava, UkraineField support at the well
Pilot Drilling Technologies
PL-SS

Safety sub (shear type)

Safety sub (shear type) is designed for disconnecting from the equipment in case of seizure of the working of pipes. The release of the working column occurs due to the axial tension of the pipe above its own weight to the shearing force of the pins. If necessary, the design of safety sub makes it possible to transmit torque to downstream equipment. To ensure the required strength characteristics, steels of high strength groups are used in the manufacture of this type of equipment.

Sizes
5
Equipment line
Downhole equipment

Design advantages

  • Possibility of disconnection by axial tension of pipes above their own weight.
  • Transmit torque to the equipment installed below.

Sizes and specifications

5 sizes, 4 parameters

SizeTubing ODmmOuter diameter max.mmInner diametermmThread connection
2 3/8"60,3258550At the request of the Customer
2 7/8"73,02593,263,5At the request of the Customer
3 1/2"88,9114,376,2At the request of the Customer
4 1/2"114,3141,2101,6At the request of the Customer
5 1/2"139,7152,4130,3At the request of the Customer

Non-standard sizes are made to order — send the well parameters.

Documents

Datasheetin preparationCertificate of conformityin preparationOperating manualin preparation

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