Safety Shear Swivel®

NEW PRODUCT LAUNCH

Tapered string operations are characterized by a higher torque capacity in the upper and larger pipe than the lower and smaller pipe. If the string is rotated the torque should always be adapted to the weakest link. During operations, unintentional situations may occur, which may cause severe consequences.

Product Datasheet

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Safety Shear Swivel® - Patent Pending

Field proven on the Norwegian Continental Shelf.
When completing a well, a normal operation is to displace the mud with brines. As brines typically contain less friction-reducing agents, the rotating friction may increase. The brine is often displaced through the bottom of the string, potentially exposing the lower section to higher torque than the upper string. This situation may be difficult to predict and even more difficult to control during operation. 

Innovar has developed the Safety Shear Swivel to minimize the risk of undesired torque being applied to the lower part of the string, and to reduce the risk of damaging the string.

The Safety Shear Swivel serves several important functions:
  • It is a controlled weak-link. The Safety Shear Swivel can be set to shear at the desired torque.
  • It serves as the cross over sub from the upper and larger pipe to the lower and smaller pipe. Saving the cost of a rental thread cross over sub.

Built with high-quality radial and thrust roller bearings, the Safety Shear Swivel is designed to accept continued rotation of the upper string, while the lower string is held stationary and attached in both tension and compression. Seals maintain a 5000 psi internal working pressure before activation. While rotating, low friction dynamic seals continue to restrict leaks and preserve the bearing technology, even after the high-pressure seals start to wear out.

The Safety Shear Swivel is designed to be redressed on-site and all threaded connections are mechanically locked from coming loose while in downhole service.
SSW%203
SSW%203

Safety Shear Swivel® - Patent Pending

Field proven on the Norwegian Continental Shelf.
When completing a well, a normal operation is to displace the mud with brines. As brines typically contain less friction-reducing agents, the rotating friction may increase. The brine is often displaced through the bottom of the string, potentially exposing the lower section to higher torque than the upper string. This situation may be difficult to predict and even more difficult to control during operation. 

Innovar has developed the Safety Shear Swivel to minimize the risk of undesired torque being applied to the lower part of the string, and to reduce the risk of damaging the string.

The Safety Shear Swivel serves several important functions:
  • It is a controlled weak-link. The Safety Shear Swivel can be set to shear at the desired torque.
  • It serves as the cross over sub from the upper and larger pipe to the lower and smaller pipe. Saving the cost of a rental thread cross over sub.

Built with high-quality radial and thrust roller bearings, the Safety Shear Swivel is designed to accept continued rotation of the upper string, while the lower string is held stationary and attached in both tension and compression. Seals maintain a 5000 psi internal working pressure before activation. While rotating, low friction dynamic seals continue to restrict leaks and preserve the bearing technology, even after the high-pressure seals start to wear out.

The Safety Shear Swivel is designed to be redressed on-site and all threaded connections are mechanically locked from coming loose while in downhole service.

Applications

  • Safety Shear Swivel x-over for tapered string operations

Features

  • Prevents excess torque to be transmitted to smaller pipe
  • Hydraulically sealed
  • Sealed bearings
  • All internal connections are mechanically locked
  • Simple on site redress
  • No third party service personel required on site
  • Standard tool joint dimension
  • Full drill pipe ID
  • Serve as thread XO

Benefits

  • Prevents overtorque and twist off
  • Permits internal pressure
  • Prolong service life
  • Preserve equipment and avoid fishing jobs
  • Minimize risk of unitentionally back off.
  • Permits re-use
  • Simple operation
  • Easy make up
  • No flow restriction
  • Eliminates additional rental tools
  • Saves cost and rig time
  • Provide flexibility
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