Decommissioning

The authors of this paper describe a system that enables the storage of renewable power while allowing for the optimization of time and expenditure for decommissioning of existing infrastructure.
A study of a limited number of decommissioned oil and gas wells in England found no evidence of methane leaks, including four wells found to be leaking in an earlier study.
One of the newest ways to plug and abandon wells and patch casing leaks involves an alloy that flows like water.

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