Berea Sandstone™ Petroleum Cores

For the past 30 years, Berea Sandstone™ core samples have been widely recognized by the petroleum industry as the best stone for testing the efficiency of chemical surfactants.

Berea Sandstone™ is a sedimentary rock whose grains are predominantly sand-sized and are composed of quartz sand held together by silica. The relatively high porosity and permeability of Berea Sandstone™ makes it a good reservoir rock.

Split Rock
This is the name given to sandstone that has visible laminations and can be easily split along the laminations. Except for the laminations, some split rock can be classified as homogeneous and usually falls in the 50 to 300 milidarcy range.

Silica	SiO₂	93.13%
Alumina	AI₂O₃	3.86%
Ferric Oxide	Fe₂O₃	.11%
Ferrous Oxide	FeO	.54%
Magnesium Oxide	MgO	.25%
Calcium Oxide	CaO	.10%

Permeability Range	Availability
Less than 50 mD	As Available
50-100 mD	Rare
100-200 mD	Available - Standard
200-500 mD	Rare
500-1000 mD	As Available
Greater than 1000 mD	Rare

Cleveland Quarries supply Berea Sandstone™ cores in a variety of shapes and sizes, such as:

Core Blocks - any size up to 48x48x48
Cylindrical Cores - min 1/2" dia to any size requested (tool charges may apply)
Cores Dimensioned - rectangular and square shapes

Berea Sandstone™ Petroleum Cores

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