Subsea carbon capture and storage

Sunset over the ocean with a supply ship , transitioning to abstract horizontal lines transitioning out of the image (the subsea version of a moose at sunset painting).

Lock CO₂ away

Carbon capture and storage (CCS) is a major opportunity for hydrocarbon producers and wider industries to reduce their emissions.

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OPPORTUNITY

Keeping industrial emissions out of the atmosphere

Pumping CO₂ underground for enhanced oil recovery (using pressure to push more oil out of reservoirs) has been a tried and tested technique since the mid‑1990s.

Today, the energy transition can benefit from this proven methodology, not only to capture CO₂, but to store it. Locking it away for millennia. So, rather than leaving depleted oil fields empty, they can be used as repositories for CO₂. Repurposing reservoirs for CCS in this way can bring circularity to offshore facilities, that otherwise would have been de-commissioned.

But the opportunity is much bigger still. Carbon-intensive onshore industries, such as cement manufacturing, can capture and transport their CO₂ from shore to be injected below the seabed.

A key challenge for industry, however, is that current CO₂ flow lines from shore are prohibitively expensive or in many cases, not up to the task of handling highly corrosive dense phase CO₂.

SOLUTION

The new home for CO₂. Under the seabed

Our proven infrastructure and knowledge of how to optimize solutions can make CCS viable at scale.

We have decades of experience in developing subsea oil and gas solutions across the globe. Now we can reverse that knowledge – quite literally. Because OneSubsea equipment – including pumps, compressors, trees, FPSO swivels and subsea pressure measurement systems – can all be used to put the CO₂ right back in where the oil and gas originated. And our expertise will help ensure it remains there for the long run.

All the building blocks for CCS via CO₂ injection are qualified and available. We can bring CO₂ from shore via flowlines or connect vessels carrying CO₂ barrels to seabed pumps. You can even use existing pipelines for temporary storage of dense phase CO₂ before pumping it into reservoirs via existing subsea infrastructure.

Turquoise gloves holding a metal disc covered with tiny mixed stones and minerals, a samplefrom a subsurface formation.

KEY SUCCESS FACTORS

The infrastructure to make CO₂ transport and subsea storage viable

Introducing circularity to the energy process

We can help operators to extend the life and value of reservoirs by repurposing them and support our customers in their journey to net zero.

Technology that’s proven to withstand the scale of the task

The core components of our CCS technology have been operational since the 1990s. And today our full-scale high-pressure CO₂ test loop has shown that our equipment, from 6MW pump to flow meters, works at every stage.

Building new CCS value chains

Waste companies and oil and gas producers can tap into our subsea processing and material technology expertise to create new commercial opportunities in managing CO₂.