Review of Dry Tree Well Conductor Tensioning for a Deep Draft Semi-Submersible Event: Offshore Symposium Date: February 1999 Author: H. Howells - 2H. F. Gaubil, P. Thomas - Technip. C. Hough - TPG This paper reports the results of a study of the hydrodynamic motions and well conductor stresses for the TPG 3300 deep draft semi-submersible (DDSS) in 1300m water depth and the harsh environment West of Shetland. The motions of the unit are such that under these conditions rigid well conductors, and hence dry trees, can be used. It is therefore suitable for dry tree well completions in other environment locations such as West Africa, Gulf. of Mexico and Brazil. It is also demonstrated that the top tensioning of the well conductors is viable for a DDSS in these conditions, and therefore, other less severe locations. An alternative buoyancy can design is also presented. The work is part of a BP Amoco sponsored three phase development programme performed by Technip-Geoproduction, (TPG). The ongoing third phase is being funded by BP, Amoco, Statoil and TPG, and includes the services of 2H for riser analysis and Pride Foramer/Horwell for review of drilling operations. This paper presents: An outline of description of the TPG 3300 DDSS a discussion of some of the key features to be considered in designing a floating dry tree facility for a harsh environment the results of the analysis of of top tensioned well conductors a discussion of an alternative conductor tensioning method for a DDSS If you would like a copy of this technical paper register to download it (pop-up form). All technical papers 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 Engineering, Life Extension & Monitoring Riser Integrity & Life Extension Platform Well Integrity & Life Extension Subsea Wellhead System & Life Extension Machine Learning for Riser Engineering 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 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.