Drill cuttings
Handling and treatment of drill cuttings for decommissioning programmes
If an ageing asset is to be decommissioned, drill cuttings that remain on the seabed from historical drilling activity may need to be removed and cleaned.
Cuttings piles from past exploration and production activities are often left in situ until well abandonment. In many cases crustaceans form over these piles on the seabed. These piles may contain toxic elements and can become harmful to the environment if disturbed during decommissioning, therefore seabed recovery of old drill cuttings to bring them to the surface for processing is a critical consideration of decommissioning programmes.
In the decommissioning process TWMA’s service lines offer the ability to treat drill cuttings once brought to the surface. We mobilise our technology and systems on location and either process the drill cuttings onsite through our TCC RotoMill, or transport the drill cuttings to shore using our CCDS bulk transfer service for processing at one of our onshore facilities.
As a valuable link in the decommissioning supply chain, we have experience in handling multiple decommissioning projects in the North Sea and across the world.
The hierarchy of waste management is to reduce, reuse and where possible, treat waste at source. By following this philosophy and utilising the most advanced, best-in-class drill cuttings technologies, TWMA is able to offer successful drilling waste management services for oil and gas decommissioning projects.
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