Bags filled with sand. Every frack requires 50 train cars full of fine sand to help “open” cracks far below the surface and allow gas and oil to escape.
Credit:
Yva Momatiuk & John Eastcott
Williston Basin, ND
Bags filled with sand. Every frack requires 50 train cars full of fine sand to help “open” cracks far below the surface and allow gas and oil to escape.