Installation of Pipeline End Manifold (PLEM) and …

1 Installation of Pipeline End Manifold (PLEM) and Subsea Tie-In of Expansion Spools Zamri B Ahmad Petroleum Management (PMU), PETRONAS 2011 PETROLIAM NASIONAL BERHAD (PETRONAS) All rights reserved. No part of this document may be reproduced, stored in a retrieval system or transmitted in any form or by any means (electronic, mechanical, photocopying, recording or otherwise) without the permission of the copyright owner. PETRONAS-PETRAD-INTSOK-CCOP Deepwater Subsea Tie-Back Workshop 25 26th January 2011 INTRODUCTION Background Information Scope of Presentation Installation PRELIMINARIES Pipeline End Manifold (PLEM) Expansion Spools Installation Barge Final Assembly Installation PROCEDURE Pipeline End Manifold (PLEM) Expansion Spools Final Assembly CONCLUSION OUTLINE 1 Introduction Installation Preliminaries Installation Procedure Conclusion 2 2 Pipeline End Manifold (PLEM): commonly used for subsea Manifold to tie-in of underwater pipelines.

2 Used to comingle 2 or more pipelines together and eliminate the need for additional risers. INTRODUCTION: Background Information Introduction Installation Procedure Installation Preliminaries Conclusion 3 Introduction Installation Procedure Installation Preliminaries Conclusion INTRODUCTION: Background Information 4 Introduction Installation Procedure Installation Preliminaries Conclusion INTRODUCTION: Background Information 5 5 Installation of PLEM and expansion spools: require great precision sensitive to weather conditions high Installation cost INTRODUCTION.

3 Background Information Introduction Installation Procedure Installation Preliminaries Conclusion of PLEM. of 2 expansion spools. 6 INTRODUCTION: Scope of Presentation CPP PLEM MOPU 1 MOPU 2 10 6km 16 25km Introduction Installation Procedure Installation Preliminaries Conclusion Designed Weight: ~ 70 MT Dimension: 14m x 6m Water Depth: 114ft ( ) 7 Installation PRELIMINARIES: Pipeline End Manifold (PLEM) Introduction Installation Procedure Installation Preliminaries Conclusion 8 Installation PRELIMINARIES: Pipeline End Manifold (PLEM) Introduction Installation Procedure Installation Preliminaries Conclusion Expansion Spool at Pipeline / PLEM Expansion Spool at PLEM / MOPU 16 diameter Full Well Stream (FWS) 9 Installation PRELIMINARIES: Expansion Spools Introduction Installation Procedure Installation Preliminaries Conclusion 10 Installation PRELIMINARIES.

4 Expansion Spools Introduction Installation Procedure Installation Preliminaries Conclusion DP DLB Lewek Champion 358 person accommodation 1 x 800MT main crane 2 x 30MT secondary crane Dynamic Positioning with 6 Azimuth thrusters (max thrust ) 11 Installation PRELIMINARIES: Installation Barge Introduction Installation Procedure Installation Preliminaries Conclusion PLEM Expansion spool Pipeline to CPP MOPU Leg Footing Expansion spool 12 For future expansion Installation PRELIMINARIES: Final Assembly Introduction Installation Procedure Installation Preliminaries Conclusion 13 Installation PROCEDURE: Pipeline End Manifold (PLEM) PLEM Pre- Installation : USBL beacons Introduction Installation Procedure Installation Preliminaries Conclusion 14 Installation PROCEDURE: Pipeline End Manifold (PLEM) Barge setup for PLEM Installation Introduction Installation Procedure Installation Preliminaries Conclusion 15 Installation PROCEDURE: Pipeline End Manifold (PLEM) PLEM footprint and debris survey.

5 Introduction Installation Procedure Installation Preliminaries Conclusion Stage 2 Stage 1 Stage 3 16 Installation PROCEDURE: Pipeline End Manifold (PLEM) Introduction Installation Procedure Installation Preliminaries Conclusion Barge Set-Up for Pipeline / PLEM Spool Installation 17 Installation PROCEDURE: Expansion Spools Introduction Installation Procedure Installation Preliminaries Conclusion Pipeline on an A Frame 18 Installation PROCEDURE: Expansion Spools Lifting Riggings on Expansion Spool Introduction Installation Procedure Installation Preliminaries Conclusion Installation PROCEDURE: Expansion Spools Stage 2 Stage 1 Stage 3 19 Introduction Installation Procedure Installation Preliminaries Conclusion 20 Installation PROCEDURE: Expansion Spools Expansion spool tie-in to PLEM Introduction Installation Procedure Installation Preliminaries Conclusion SPOOL PLEM 21 +/- 300mm Installation PROCEDURE.

6 Expansion Spools 2 Introduction Installation Procedure 1 Installation Preliminaries Conclusion 22 Installation PROCEDURE: Expansion Spools Expansion spool tie-in to Pipeline Introduction Installation Procedure Installation Preliminaries Conclusion Flange Protector Drawings 23 Installation PROCEDURE: Expansion Spools Introduction Installation Procedure Installation Preliminaries Conclusion Barge Set-Up for PLEM / MOPU Spool Installation 24 Installation PROCEDURE: Expansion Spools Introduction Installation Procedure Installation Preliminaries Conclusion 25 Installation PROCEDURE: Final Assembly Introduction Installation Procedure PLEM Expansion spool Pipeline to CPP MOPU Leg Footing Expansion spool Installation Preliminaries Conclusion 26 Similar approach is used for deepwater Installation .

7 However, the challenges are greater. Due to the depth; human divers are out of bound. Thus extensive use of ROVs high-accuracy beacons are needed for positioning. DP vessel are required as apposed to anchor handling. CONCLUSION: Introduction Installation Procedure Installation Preliminaries Conclusion 27 THANK YOU Introduction Installation Procedure Installation Preliminaries Conclusion