FACILITIES DECOMMISIONING

Facilities Decommisioning

energydotcom.com

2026

Facilities Decommissioning

Offshore & Onshore Decommissioning

Wells P&A, decommissioning of platforms, pipelines, and facilities in accordance with regulatory and environmental standards.

 

Asset Refurbishment & Repurposing

Assessment, refurbishment, and repurposing of existing assets for extended asset life, relocate to new offshore fields for early and lower cost monetization, and for alternative industrial and energy applications.

End-of-Life Field Management

Integrated solutions covering planning, execution, environmental remediation, and long-term site management.

 

Large Scale Construction Site Resources

The large-scale marine equipment construction industry mainly relies on well-positioned coastal locations that provide access to port facilities and supporting industrial infrastructure.

Slide And Dock Resources

The Site has 2 slides to meet the construction of various marine engineering modules, and also has the ability to drag and load modules up to 5000T and SPMT cars for loading. The site also has 253m shoreline dock resources, meeting the requirements for 20000 ton barge berthing.

Mature Platform Transformation Utilizing Technology

We have rich experience in platform maintenance and renovation, and have completed over 5 large-scale ocean module maintenance and reuse projects. 

Project Name Year of repair Main service content
WC 13-6 Module drilling rig renovation and reuse 2013 Repair the drilling equipment and reassemble it for integration
WC 13-2B workover rig renovation service 2018 Dismantle the offshore workover rig, evaluate the workover equipment and facilities, carry out adaptive modifications according to the new platform, reassemble, debug and install them on the new platform.
HYSY115&NHFJ FPSO Dock Repair Replacement Project 2022 Adaptively retrofit two FPSOs to meet logistics transportation processes, including process pipeline modification, mechanical equipment modification, structural modification, electrical instrument modification, etc.
Applicability modification service for the offshore oil 165 platform 2024 Support services such as dock berthing, pile insertion, cutting-edge seabed expliration, inspection and testing of single equipment on platforms, and maintenance; Maintenance design services, as well as installation, debugging, testing, positioning support for platform equipment, and technical support for offshore debugging.
HYSY 165 Special Inspection Support Service 2024 Cooperate with CCS to complete platform classification special inspection and statutory certificate renewal inspection support services.

Typical Cases Of Shipping And Transportation

3D Laser Scanning Technology

By introducing 3D laser scanning and point cloud data processing technology, an accurate 3D point cloud model is formed to assist in the design and calibration of platform renovation. It is also linked to the digital prefabrication production line of pipelines to improve the ground prefabrication rate and accuracy, effectively reducing the construction and installation time inside the platform.

Implementation Process

Seven steps of the platform Dismantling, Maintenance, and Utilization implementation process

1. Platform dismantling

Platform dismantling is divided into total dismantling and partial dismantling. There are generally three ways of disposal after dismantling: abandonment in place, abandonment in another place, and reuse

2. Tow and unload the ship

Dismantling is done on a heavy crane vessel (HLV) or a semi-submersible crane vessel (SSLV)

3. Land demolition

Equipment dismantling
Electrival and instrumentation disassembly
Container disassembly
Steel structure disassembly
Jacket dismantling

4. Maintenance and renovation

Restore the integrity and functionality of the platform's systems and complete the classification certification work, including restoring equipment and system functionality, completing production operation adaptation rectification, and wellhead automation transformation.

5. Commissioning and Certification

Drawing design and submission for review, CCS inspection, various equipment inspection, etc., processing of CCS class certificates and maritime documents

6. Ship fixing

SPMT self-propelled modular transport vehicle reduces slide resource occupation and improves site assembly and loading efficiency.

7. Shipping by sea

After loading is completed, the barge sails along the preset route to the operation waters

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