RE: Look to the past, for the FUTURE.....14 Sep 2019 06:11
heres an example"The diatomite formation at Belridge is upper Miocene strata that were formed by diatoms, single celled plants that lived in the shallow sea that once covered the southern San Joaquin Valley. The formation has high porosity, as much as 58%, but the pore throats are small, resulting in permeability as low as 1.5 md. That calls for fracturing.