Colorado lawmakers have proposed a bill to study whether a type of charcoal could be used to plug deserted oil and gas wells.
Equipment operator Matt Odiaga walks in front of a pile of waste wood at the Biochar Now facility in Berthoud, Colo., on Monday, Feb. 13, 2023. Colorado lawmakers want to commission a study to see if biochar, a carbon-rich substance that resembles charcoal, can be used to plug the hundreds of deserted oil and gas wells across the state. The material could also be used to filter and absorb pollutants that leak from the wells.
could help tackle climate change — estimates range from keeping millions to billions of tons of carbon dioxide out of the atmosphere. But extracting fossil fuels has unearthed carbon — formed out of ancient plant matter over eons — that's been stored underground largely since the Mesozoic Era, the age of dinosaurs over 65 million years ago.
Nearby, dead logs were stacked in neat piles. They were likely either killed by invasive beetles in Rocky Mountain forests or were casualties of a 2021 wildfire near Boulder, the most destructive in state history. Biochar is lightweight — like popcorn — and porous like a sponge, which is why it already has an international market. From Colorado, Biochar Now ships bags of the substance internationally for deployment as a filter at wastewater treatment plants, in soil to retain nutrients and in streams to pull out pollutants.
Colorado's oil and gas industry association said it “looks forward” to working with McCormick in finding the best use for biochar.
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