Chevron Completes Platform Reuse Project at Chaba B

Gulf of Thailand reuse project cuts 4,280 tonnes of carbon emissions

Chevron Offshore Thailand has repurposed an entire offshore platform in the Gulf of Thailand. The company moved the topside and jacket from the retired Benchamas V wellhead platform to a new location, where they now form the Chaba B platform in Block B8/32. This is the first complete wellhead platform reuse project Chevron has carried out in Thai waters.

The company says the project avoided roughly 4,280 tonnes of carbon dioxide equivalent compared with the usual approach of decommissioning the old structure and building a new one from scratch. Across 14 reused wellhead platform topsides, Chevron now reports cumulative avoidance of more than 27,000 tonnes of CO₂e. For context, that total is equivalent to taking around 6,000 petrol cars off the road for a year.

The Bangkok Post confirmed the project was completed without safety incidents. Chevron framed the work as practical innovation that cuts costs, improves efficiency, and reduces emissions at the same time. The reuse model also helps smaller petroleum reserves in the Gulf of Thailand become economically viable, because installing a refurbished platform costs less than fabricating and installing new steel.

Why platform reuse delivers significant carbon savings

Most of the emissions benefit comes from avoiding new steel production and the associated construction activity. Manufacturing steel is energy intensive and generates substantial CO₂ emissions. Transporting heavy fabricated sections to offshore sites adds further fuel consumption and emissions. Installing new platforms requires crane vessels, support boats, and extended offshore operations, all of which burn marine fuel.

By reusing an existing structure, Chevron eliminated those steps. The company quantified the carbon saving at 4,280 tonnes of CO₂e for this single platform. That figure covers avoided emissions from steel manufacturing, offshore transport, and installation work. It does not include operational savings once the platform is in service, which may also be lower because the refurbished structure required less new material.

Platform reuse is not a new concept in offshore engineering, but it has gained attention as operators look for ways to reduce carbon intensity without retiring producing assets. Consequently, reuse projects are now part of wider decarbonisation strategies that include methane management, flaring reduction, and energy efficiency improvements across offshore operations.

Chevron’s wider climate commitments in oil and gas operations

The Chaba B reuse project sits within a broader set of climate targets that Chevron has set for its upstream oil and gas business. The company aims to achieve a methane intensity of 2.0 kilograms of CO₂e per barrel of oil equivalent by 2028. It has also committed to zero routine flaring by 2030, which means ending the practice of burning off excess gas during normal production operations.

In addition, Chevron is working to lower the overall carbon intensity of its upstream production. This includes operational measures such as improving energy efficiency at production facilities, reducing venting and fugitive emissions, and upgrading equipment to cut greenhouse gas releases. The company has invested in emissions-abatement projects across its global portfolio, including gas capture systems, compressor upgrades, and methane detection technology.

Platform reuse contributes to these carbon intensity targets by reducing the embedded emissions in new infrastructure. Therefore, every tonne of CO₂e avoided through reuse improves the emissions profile of the field over its producing life. This makes reuse particularly relevant for mature offshore basins, where existing infrastructure can be relocated to extend production from smaller fields that would otherwise be uneconomic to develop.

Commercial and operational context for UK and international firms

The Gulf of Thailand project offers a useful reference for companies operating in the UK North Sea and other mature offshore regions. Many UK offshore platforms are approaching the end of their design life, and operators face decisions about whether to decommission, extend, or repurpose them. Meanwhile, there are still undeveloped reserves that might justify new platforms if costs can be controlled.

Reusing platforms can reduce capital expenditure significantly compared with new builds. This makes marginal fields more attractive and can extend the productive life of offshore infrastructure that would otherwise be scrapped. For UK operators, this approach may also help meet emissions reduction targets under the North Sea Transition Deal, which requires the offshore oil and gas sector to cut emissions by 50% by 2030.

However, reuse projects are not always straightforward. Structural integrity assessments are required to confirm that the jacket and topside can be safely relocated and will meet regulatory standards at the new site. Marine operations to move large structures are complex and weather-dependent. Refurbishment work may be needed to bring equipment up to current specifications. Despite these challenges, the commercial and environmental case for reuse is becoming stronger as carbon pricing, regulatory pressure, and stakeholder expectations increase.

Essential facts about the Chaba B platform reuse

• Chevron Offshore Thailand repurposed the entire Benchamas V wellhead platform for use as the Chaba B platform in Block B8/32, marking the company’s first total wellhead platform reuse in the Gulf of Thailand.
• The project avoided approximately 4,280 tonnes of carbon dioxide equivalent compared with decommissioning the old platform and building a new one from scratch.
• Chevron has now reused 14 wellhead platform topsides, avoiding a cumulative total of more than 27,000 tonnes of CO₂e across these projects.
• The carbon savings come primarily from eliminating the need for new steel production, offshore transport of fabricated sections, and installation operations, all of which generate significant emissions.
• Platform reuse supports Chevron’s wider climate targets, including a methane intensity goal of 2.0 kg CO₂e per barrel of oil equivalent by 2028 and zero routine flaring by 2030.
• The project also makes smaller petroleum reserves in the Gulf of Thailand more economically viable by reducing the capital cost of installing new production infrastructure.

What platform reuse means for emissions reduction strategies

This project demonstrates that emissions reductions in oil and gas do not always require breakthrough technology. Sometimes the most effective approach is to avoid emissions altogether by reusing existing assets rather than manufacturing new ones. This matters because embedded carbon in infrastructure is a significant part of the total emissions footprint for offshore oil and gas projects.

For businesses involved in offshore supply chains, procurement, or operations, platform reuse represents a practical way to lower Scope 3 emissions. Suppliers who provide refurbishment services, structural assessments, or marine operations for reuse projects are contributing to emissions avoidance. Similarly, companies that can demonstrate lower embedded carbon in their offshore activities may have an advantage in tenders and contract negotiations, particularly where carbon intensity is a selection criterion.

UK SMEs working in the offshore sector should consider how their services can support reuse and life extension projects. Engineering firms, fabrication yards, marine contractors, and inspection services all have roles to play. Furthermore, companies that develop expertise in structural integrity assessment, marine lifting operations, and platform refurbishment may find growing demand as more operators pursue reuse strategies to meet climate commitments and control costs.

Asset reuse also aligns with circular economy principles, which are increasingly relevant in corporate sustainability strategies and public procurement. For firms bidding on public sector contracts or supplying large corporates, demonstrating a circular approach to materials and infrastructure can strengthen environmental credentials. Our sustainable procurement support services help businesses align their supply chain practices with these expectations.

How UK businesses can apply lessons from offshore reuse

The offshore oil and gas sector is not the only industry where asset reuse can cut emissions and costs. Manufacturing, construction, logistics, and facilities management all involve capital equipment and infrastructure that can often be refurbished, relocated, or repurposed rather than replaced. However, the same principles that make platform reuse viable offshore also apply on land.

First, reuse needs a clear business case. It has to cost less than new procurement and deliver acceptable performance over a realistic time horizon. Second, it requires proper assessment of condition and suitability. Third, it depends on compliance with current standards and regulations. Finally, it generates measurable emissions savings that can be reported in carbon disclosures and contribute to net-zero targets.

For SMEs pursuing net-zero commitments or preparing for carbon reporting requirements, asset reuse should be part of the conversation. Capital equipment, industrial plant, warehouse racking, office fit-outs, and transport fleets can all be evaluated for refurbishment and extended life. Emissions avoided through reuse count towards Scope 1 and Scope 2 reductions if the assets are owned, or Scope 3 reductions if they are part of the supply chain.

If your business is working towards PPN 06/21 compliance for public sector contracts or preparing for mandatory carbon reporting, you need accurate data on emissions across your operations. Our net-zero program for carbon reporting compliance helps SMEs measure, report, and reduce emissions in line with UK requirements. We also offer training through SBS Academy to help your team understand carbon accounting, Scope 3 emissions, and practical reduction strategies.

Where to find official guidance and industry resources

For more detail on carbon reporting standards and emissions accounting methods, the UK government publishes guidance on measuring and reporting greenhouse gas emissions at gov.uk conversion factors for company reporting. This resource provides the emissions factors used to calculate CO₂e from fuel consumption, electricity use, and other activities.

The UK Offshore Energy Strategic Environmental Assessment offers context on environmental regulation and decommissioning requirements for offshore oil and gas infrastructure. Businesses involved in offshore supply chains should also review the North Sea Transition Authority guidance on decommissioning and emissions reduction in the UK Continental Shelf.

For firms working with circular economy principles and asset reuse, the BSI standard BS 8001 on circular economy provides a framework for implementing reuse and resource efficiency strategies. The Institute of Environmental Management and Assessment also publishes guidance on environmental management systems and carbon reduction planning for businesses of all sizes.