With so little geological information available in traditional overburden section, legacy cuttings from oil and gas wells have an important role to play as the need to store CO2 in the subsurface becomes more urgent. Here, examples from the Triassic Bunter Sandstone, UK, are shown to illustrate how cuttings can assist with the prioritization of certain structures and formations for CO2 storage, as well as offering insights into problems associated with CO2 injectivity, formation damage and potential leakage.

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