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Subsea Production Systems
Subsea Production Systems Subsea Forum - Young Engineers Day Paris, 13th June 2007 Paul Betteridge Subsea Business Development Director Agenda Typical Subsea Development Overview • The Building Blocks Subsea Xmas Trees • • • Overview Conventional Dual Bore Horizontal Production Control Systems • System Overview Manifolds • Overview Connection Systems Questions 2 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Subsea Development Overview 3 GE Confidential and Proprietary Information GE©2007 All Rights Reserved The Building Blocks Host Facility Dual Flowlines Main Umbilical Flowline Jumper PLET Well #1 Manifold #1 Dual Flowlines Well #2 SDU PLET Well #3 SUTA In-field Umbilical SDU Manifold #2 Well Slot #4 EFL/HFL (typ.) Pigging Loop 4 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Exploration and Production Frontier 5 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Xmas Trees 6 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Xmas Tree Overview Provides a pressure containing method to safely cap the Well via its interface with the subsea Wellhead Xmas Tree features: • Control, monitor and condition either produced or injected media. (Designs for either 5000, 10000 or 15,000 psi wp) • Provides normal and failsafe methods of shutting the Well at the mudline • Provides a interface to re-enter the Well at any time during the life of the field • Provides a platform/interface from which to monitor down hole pressure temperature or ‘smart well’ systems & applications • Provides a platform/interface from which to inject chemicals either down hole or at the Xmas Tree 7 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Subsea Production Systems Tree Systems Horizontal Tree Deepwater Dual Bore Tree Diverless Dual Bore Tree Deepwater Mono Bore Tree Shallow Water Mono Bore Tree Deepwater 8 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Horizontal vs Conventional Tree = Gate Valves Tree Cap Tree Cap Crown Plugs Tubing Hanger Master Valve Block Treehead Tree Connector Tree Connector Tubing Hanger Wellhead Wellhead Horizontal Tree Conventional Tree 9 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Controls 10 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Subsea Production Control Systems Multiplexed Electro-hydraulic Control Systems Control system fully integrated with host facility Deepwater diver less intervention (retrievable) Fieldbus comms and instrument architecture Long Offset (200km +) Qualified to 3000m Water depth Combined or separate comms and power Intelligent (smart well) Completion interfaces Optional Fiber Optic comms HP/HT compatible 11 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Subsea PCS Functional Requirements 12 GE Confidential and Proprietary Information GE©2007 All Rights Reserved System Overview - Topsides Topside Equipment • Master Control Station • Hydraulic Power Unit • Methanol / chemical injection skids • Accepts platform ESD signals • Topside Umbilical Termination Unit Pump control panel UPS Chemical Injection Skid PC Methanol Injection Skid HFS ESD PSD MCS Chemical Electrical Cables Methanol PJB HPS Hydraulic Umbilical 13 GE Confidential and Proprietary Information GE©2007 All Rights Reserved System Overview - Subsea Subsea Equipment • Umbilical Termination Assembly • Control Pod on Tree / Manifold • Readback of pressure / temperature / choke position / downhole data Umbilical Termination Assembly Electrical Hydraulic/ Chemical Umbilical Manifold Subsea Tree Subsea Control Module Hydraulic Flying lead Electrical Flying Lead 14 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Master Control Station Typical well page on MCS 15 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Manifold Systems 16 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Subsea Manifold Systems A large variety of Subsea Manifold configurations, based on standard building blocks: Template Manifolds Cluster Manifolds Internal or External Pigging Loops Vertical or Horizontal Jumper Connections Skirt, Monopile or Suction Anchor Foundations Moonpool Installable Manifolds Pipeline End Manifolds (PLEM), Pipeline End Terminations ( PLET) and Riser Bases 5, 10 or 15k Pressure Ratings Insulation Systems to meet Flow Assurance requirements Distribution System based on hard piped, multibore connections or ROV Jumpers 17 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Product Overview / Key Features Foundation Structures Seven Heads Piles – not very commonly used. Special equipment needed during installation . Mudmat – Hard to medium soil conditions. Large areas required, high slamming loads in splash zone. 18 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Product Overview / Key Features Foundation Structures (cont’d) Suction Pile, robust foundation concept from soft to “ultra soft” soil conditions (typical West Africa). Guide mast on suction pile interfaces centre column on manifold. Levelling possible by adjustment of position of guide cone 19 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Product Overview / Key Features Foundation Structures (cont.) Suction Piles (Lobito) Suction Pile (Bonga) PLEM Foundation Kuito 1B 20 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Product Overview / Key Features Production Templates Wellheads w/trees and manifold located on one common foundation structure. Cost effective; infield jumpers not required, connection between tree and manifold normally through a Choke Bridge Module. 21 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Connection Systems 22 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Connection Systems Main type of connectors Collet Mandrel (dogs) Clamp 23 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Connection Systems Subsea connection systems Subsea Connection Systems features diverless connectors and tooling systems for most applications: Rigid Jumpers and Tie-in Spools Flexible Flowlines Umbilicals Single bore and Multibore Hubs Clamp, Mandrel and Collet Connectors Horizontal and Vertical Configurations Subsea Winch Systems Stab & Hinge Over Systems ROV Jumper / “Flying Lead” Systems 24 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Vetcogray Experience – Subsea Production Systems Subsea Trees – 900 (300 pcs Horizontal & 600 pcs Conventional) Subsea Controls – 500 pcs Subsea Manifolds – 80 pcs Subsea Connections 1000 25 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Questions? 26 GE Confidential and Proprietary Information GE©2007 All Rights Reserved Thank YOU for attending!
