Sentences with phrase «porous rock beds»

For efficient storage, the CO2 is compressed into a liquid, which can be pumped deep into the earth, to be trapped in the same porous rock beds which once provided oily reservoirs.

Started in 1961, when helium was considered to be a crucial military and technological resource, the stockpile had grown by 1996 to 170,000 metric tons, stored mostly in porous rock beds in the Cliffside gas field near Amarillo, Tex..