Diamond Vault

The Diamond Vault Project, led by Cleco Power, LLC, is located at the Brame Energy Center near Boyce, Rapides Parish, Louisiana. The project is designed to capture CO₂ emissions from the 600 MW Madison Unit 3 (a circulating fluidized bed unit fueled by petroleum coke and coal) and permanently store them in deep saline formations. Cleco has proposed the development of six injection wells across three well pads, with each pad targeting the Wilcox 1 and Wilcox 2 formations beneath Lake Rodemacher. The storage complex is underlain by the Wilcox Group, a thick sandstone-shale sequence divided into Wilcox 1 and Wilcox 2, with the Cane River Shale serving as the primary confining unit. Modeling indicates favorable porosity and permeability in the injection intervals, with depths ranging from ~5,600 to 7,700 ft. A stratigraphic test well (CLDV-STW1) was drilled on September 7, 2023, to collect core, fluid, and geophysical data; the results are being used to validate reservoir properties and refine geologic and dynamic models.