Riser handling tools

In order to assure safe, fast riser handling Claxton has developed a complete suite of riser handling tools to enhance drilling riser running. A full range of internal and external tools to assist with fast, safe handling are available – including our NT-2 riser handling tool, which saved $2.9m in rig time in a recent deployment offshore Norway.

Our NT-2 riser handling tool provides a means to fully support the Drilling Riser System during installation and recovery operations with the facility to circulate and fully pressure test the Drilling Riser System remotely.

Riser Handling Tool NT-2 Riser Joint

Claxton’s NT-2 riser handling tool is just one of a fleet of tools that enhance riser running times and safety.

NT-2 drilling riser handling tool features

  • Able to perform a well-bore pressure test of 7,000psi (482.6bar) while holding 308Te in tension
  • Prior to BOP installation the handling tool can act as a contingent method for applying 400Te of tension to the Drilling Riser System (with no internal bore pressure)
  • Interfaces, by means of an adaptor to either a Grayloc 192 or 196 gasket seal profiled 18-3/4”-15M NT-2 pin
  • Visual indicator rods to show tool locked and unlocked status
  • Manual override feature to lock and unlock the tool.

Design verification Our tooling is DNV approved and verified in accordance with DNV-OS-E101, API 16F, API 6A, API 8C, API 7G. Complete supply Our tools come DNV 2.7-1 certified container for transportation and storage needs of the tool. The hydraulic NT-2 handling tool is supplied with a combined HPU & Umbilical reel to power all tool functions. Claxton’s riser handling tools are just one part of an unrivalled subsea and surface riser capability – we’ve been running risers for decades and the experienced we’ve earned over hundreds of offshore mobilisation was used to develop our tooling suite.
High pressure drilling riser animation

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