High-Pressure Drilling Riser (HPDR)

HPDR Riser SystemOil States has been supplying high-pressure drilling risers based on our Merlin™ connector for over 40 years. We currently have 50+ installations around the world. Our system allows a subsea well to be drilled from a jack-up in 5K, 10K and 15K applications, offering significant savings over a semi or floating MODU.


Sales Contacts

United States
Email +1 713 445 2210

United Kingdom
Email +44 1224 290 000

Email +65 6773 7555

Email +55 21 3554 6644

Key Features

  • Fast makeup and slimline connections keep weight to a minimum.
  • Non-rotational connections allow the use of flexible control lines.
  • Through-rotary solutions available dependent on size.
  • Rental options available to reduce inventory after project.


  • Jack-up subsea exploration / production wells
  • Intervention from a jack-up
  • Subsea abandonment


  • Engineering
  • Maintenance
  • Repair
  • Fatigue monitoring
  • Riser analysis