CompositesWorld
Issue link: https://cw.epubxp.com/i/546021
TRENDS ENERGY AUGUST 2015 26 CompositesWorld Composites for offshore drilling riser buoyancy: An inside job Trelleborg Ofshore US Inc. (Houston, TX, US) and partner Landing String Solutions LLC (Madisonville, LA, US) have unveiled the world's frst composite buoyancy system deployed on a drill pipe landing string, that is, with buoyancy elements around the drill pipe inside the riser pipe. Manufactured by Trelleborg, the patented Landing String Buoyancy system has been tested and trialed and is slated for deployment by a major oil company sometime in 2016. This frst integration of buoyancy elements within the riser enables the drilling contractor to deploy larger quantities of casing, thus reducing rig time, maximizing efciency and reducing cost. The buoyancy system is designed to ofset the landing string weight by up to 80% in some cases and enable safer and more cost-efective deepwater oil and gas operations, says Trelleborg. "A large number of ultra-deepwater well designs require 16-inch [406.4- mm] diameter and other long casing strings to be run at unprecedented lengths," says Chris von Eberstein, general manager at Landing String Solutions. "A deep well's longer casing requirements can result in extreme loads, both dynamic and static, approaching, equaling and/or exceed- ing the design safe working load of a rig's hoisting system. Working at, or near, design working load presents safety and environmental concerns. Our new system" he maintains, "reduces its weight and the hook load to a manageable level." According to Trelleborg sales manager Jason Barfeld, the Landing String Buoyancy system is designed to ft inside the riser and around the drill pipe, leaving a few inches of clearance for the drilling We're partnering with customers to create a "better, faster, frst" solution for a variety of industries using strong, lightweight carbon fber: • Bridges and pipelines restored with minimal operational disruption using the DowAksa CarbonWrap ™ System • Automotive components that safely reduce vehicle weight • Strong, lightweight spar caps for larger, more efficient wind turbines www.DowAksaUSA.com If you could get a better result, faster than ever before, and be among the frst in your industry to see results … why wouldn't you? Source | Trelleborg Ofshore US