HPHT January 2016 Designing for HPHT conditions presents a number of engineering challenges which can push conventional subsea technology designs to their limits. For riser systems high pressure and high temperature conditions can require substantial pipe wall thickness, which lead to complications with total system weight and excessive interface loading. Extreme sour service conditions are also often associated with HPHT reservoirs. To overcome this, additional material corrosion allowances or pipe cladding can be necessary, adding further to the overall system weight, and presenting added complexity for offshore riser and flowline fabrication processes. For flexible riser systems, high temperatures also present design challenges due to the use of thermoplastic polymers in the design of the flexible riser structure. 2H have been closely involved with the design of riser systems for HPHT developments. These have included high pressure drilling risers for jack-up platforms in harsh environments, as well as deepwater production riser systems in the Gulf of Mexico and West Africa which are combined with stringent sour service requirements. 2H have the experience and technical capability to develop the solutions required for the most challenging HPHT applications, and together with Acteon Group sister companies Claxton and SRP, have initiated a HPHT Subsea Community to aid the industry as a whole to deliver successful HPHT developments Share this page Share on FacebookShare on LinkedinShare on Twitter Services Production & Export Riser Concept Engineering Steel Catenary Risers Top Tensioned Risers Hybrid Risers Flexible Pipes & Risers Corrosion Resistance and Composite Risers Subsea Jumper Spools Subsea Umbilicals Deep Sea Mining Integrity, Life Extension & Monitoring | 2H Offshore Riser Integrity & Life Extension Platform Well Integrity & Life Extension Subsea Wellhead System & Life Extension Machine Learning for Riser Engineering Projects Riser System Digital Twin Drilling Riser Management Riser Monitoring System Engineering Riser Inspection, Maintenance & Repair Anomaly & Incident Engineering Subsea Engineering & Assessment Services Component Detailed Design Offshore Decommissioning Engineering Fracture Mechanics and Engineering Critical Assessment Installation Engineering Mechanical Connectors Offshore Renewable Energy Systems and Qualification Testing System Verification & CVA Well Plug & Abandonment Drilling, Completion & Workover Drilling Risers Subsea Completion & Workover Risers Subsea Wellheads & Conductors Offshore Platform Conductors Well Engineering and Casing Design Minimum Facility Platform Design and Engineering Conductor Supported Wellhead Platforms & CoSMOS Monopile Wellhead Platforms Exploration to Early Production Systems Structural Engineering Services Riser Delivery Management & Systems Engineering Get the latest riser insights!Receive our riser news, published papers and blog posts in your inbox monthly.