LCP-Badamyar Project,EPCI-2 Contract, Myanmar

CONVENTIONAL PROJECT

Introduction

The LCP-Badamyar Project is a brownfield development at the producing Yadana gas field, located 80km offshore Myanmar on Blocks M5 and M6 in the Andaman Sea. The field is operated by Total E&P Myanmar, which owns a 31.24% stake in the blocks, in partnership with Chevron - Unocal (28.3%), PTTEP (25.5%) and MOGE (15.0%).

Initial development of the field commenced in the mid-1990s with field start-up achieved in 1998. The field has since undergone two subsequent phases of development, integrating a production platform (PP), a quarter’s platform (QP2), a flare platform (FP2), three wellhead platforms (WP1, WP2, WP3) and a medium compression platform (MCP) with 36” and 24” export pipelines, infield pipelines and cables/umbilicals, to form the Yadana offshore complex.

The LCP-Badamyar Project is the Phase 4 development of the Yadana field, involving the installation of a low compression platform (LCP) linked to the MCP, the development of the Badamyar field with a wellhead platform (WP4) tied back to the LCP, and modifications to the PP, MCP and QP2. This project aims at the extending the production plateau of the offshore complex.

In September 2014, Total E&P Myanmar awarded SapuraAcergy the contract for engineering, procurement, construction and installation (EPCI) of the pipeline and cable, as well as the transport and installation (T&I) of the jacket and topside for the field development. The offshore installation works were successfully completed in January 2017.

Project Overview

A fast-track project execution approach led to the successful completion of the work within 15 months from contract award, with the start-up of the Badamyar field achieved on schedule in April 2017. Offshore execution was completed in two major campaigns between February 2016 and January 2017, with a total of 138 offshore days for the Sapura 3000 and over 8 months of transportation and installation execution.

A high-performance project team was assembled at SapuraAcergy Kuala Lumpur office to manage the detailed design and installation engineering, international supply chain and procurement, fabrication, risk and safety assessment, planning, testing and development of the execution plan. The dedicated team was instrumental in the seamless execution of the project with support from our satellite worksite and site representatives in Pasir Gudang and Kuantan, Malaysia; Batam and Bintan, Indonesia; Goseong and Ulsan, South Korea; Hartlepool, United Kinfdom; Dalmine, Italy; and Yangon, Myanmar. HSE and Quality Excellence were given the highest consideration throughout the project. This was applied not only to the Sapura 3000 site but was also extended to all suppliers, fabrication sites and worksites. The project was successfully completed with zero recordable incidents throughout the project lifetime, both onshore and offshore.

The project involved two Yadana Field Shutdowns (one in each campaign) to allow for the safe execution of critical offshore installation activities. The two shutdown events were accomplished in a timely and safe manner in line with the expectations of the client and shareholders of the Yadana field.

A few notable technical challenges recorded during the installation works are:

• One vessel solution (Sapura 3000) to execute the full suite of installation scope from pipelay, cable lay, jacket and topside installation, subsea tie-in spool, saturation diving and pre-commissioning/ commissioning of pipeline and cable.

• LCP jacket installation with up to 90% crane capacity, 78” diameter and up to 59m length pile installation; the removal of over 100MT buoyancy tanks with a restricted vessel heading and weather window to perform the removal and lift.

• Use of synthetic slings (as opposed to conventional wire rope) for heavy lift (Module 1 and Module 2) with interchangeable sling length design between modules.

• LCP modules installation with over 90% crane capacity and particularly weather sensitive dynamic movement with restricted vessel heading in the middle of the Yadana main platform complex.

• Installation of sizeable MCP-LCP Bridge with stringent installation tolerance and extremely weather sensitive dynamic movement to fit on the existing adjacent platform in the middle of the Yadana main platform complex.

• The use of HLV Happy Star to transport WP4 topside from Korea to Myanmar in lieu of conventional cargo barge and tug.

• Arguably the first in the world solution of having the dedicated Hyperbaric Rescue Vessel (POSH Panglima) fitted with Thrust Hyperbaric Offshore Recovery (THOR) systems and Hyperbaric Rescue Facility (HRF) deployed at the site of saturation diving.

Project Name : LCP-Badamyar Project

Location : Blocks M5 and M6, 80km offshore Myanmar

Client : TOTAL E&P Myanmar

Contract Type : Lump sum brownfield EPCI and T&I

Water Depth : 45m to 50m

Date Awarded : September 2014

Date Completed : January 2017 (installation works)

Vessel Utilised : • Sapura 3000 - Pipelay, cable lay, heavy lift and diving• Happy Star - Heavy lift transportation vessel• Hyperbaric diving rescue vessel • 9 x Cargo barges and tugs for transportation • 4 x Support vessels

Scope of Work : • Project management and interfaces• Detailed design engineering and procurement (line pipe, risers, bend and subsea cable)• Line pipe coating and fabrication of tie-in spools• Mobilisation and demobilisation of marine spreads and construction equipment• Transportation and installation of: ~ 16” diameter x 8.5km gas pipeline from WP4 to LCP ~ Subsea power cable, 75mm diameter x 9.5km with optical fiber, between PP and WP4 ~ WP4 and LCP tie-in spools ~ WP4 - Jacket (1419MT); Topside (1117MT) ~ LCP - Jacket (2109MT); MSF module (708MT); Module 1 (1717MT); Module 2 (1888MT) ~ IBS - Tripod (704MT); Deck (111MT) ~ MCP-LCP Bridge (830MT) ~ Pre-commissioning and survey activities