Completion and workover riser systems

Our Aquaterra Quick Connect (AQC) technology combines speed and safety with our lightweight, repeat make and break completion and workover riser.


Completion and workover riser systems

Our completion and workover riser systems are lightweight, high-strength and high-fatigue resistant. All our systems are designed to be efficient, with no wasted materials and use our proprietary AQC-CW connectors to reduce operational time, whilst still ensuring complete system integrity.

Our completion and workover riser systems can be deployed from a jack-up, semi-sub or light-weight intervention vessel. It can be used as an open water subsea riser system, surface riser, or inside a riser system, as a landing string. Offered as a standard forged and welded solution or ultra light weight hybrid pipe design for deeper water applications.

Our AQC-CW connector has been specifically designed for high-fatigue, multiple make-up and break-out riser applications while maintaining a gas tight, metal-to-metal seal. The AQC-CW connector reduces cost and back off risk versus a traditional threaded and coupled connector while ensuring safety and reliability. Our technology facilitates simple installation to minimise cost and rig time and crucially a means of reliable and repeatable make/break gas tight connection with back-up sealing.

  • Flexible design suitable for surface, shallow or deep-water applications
  • 5,000, 10,000 and 15,000 PSI rated
  • 7 ¾ Nom Bore (other sizes available)
  • Designed for multiple make and breaks, reducing spare and replacement costs versus a threaded and coupled connector – as well as eliminating back-off risk
  • Cost-effective and expertly engineered
  • Suitable for intervention work
  • Single or dual bore
  • TRT (Tree Running Tool) crossovers to OEM and API connections
  • Wellhead and subsea tree stinger systems

The AQC-CW Riser System is available on a stand-alone or packaged basis. Packages include fully automatic riser spider, umbilical handling and connector make-up equipment. 

Aquaterra Energy brings to bear the industry’s best engineering, project and offshore teams to make your project a success, maximising safety and efficiency while minimising cost and rig-time.

Aquaterra Energy’s AQC-CW has been intelligently engineered and manufactured in strict accordance with ISO13628-7 2006 with a qualification process involving fatigue resonance testing, drive-bolt back-off, combined loading to destruction and vibration resistance testing:


Download our Completion and Workover Riser System tech sheet

Click here to download.