black shale

What Is The Dirtiest Oil?

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What Is The Dirtiest Oil? The world’s dirtiest oil is the Brass crude blend from Nigeria, where uncontrolled release of methane during the oil extraction process generates upstream GHG emissions more than four times higher than Canadian diluted bitumen. Which is better shale oil or crude oil? Shale oil is a substitute for conventional crude

Is Shale Cemented?

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Is Shale Cemented? Shales like other sedimentary rocks are cemented by some minerals or elements after deposition and compaction. … The common cementing materials are silica, iron oxide and calcite or lime. Accordingly, shales may be classified as siliceous, ferruginous or calcareous (sometimes also called limy), respectively. How was shale formed? Shale is a geological