Berea core flood test

Berea core flood test results (Table VIII) suggested that the presence of DMAEMA improved the permeability damage characteristics of 80% NVP copolymers. The kerosene flow rate... 

The dye adsorption capacity of water-wet Berea sandstone cores was determined by saturating two samples with brine and then flooding them with about 700 pore volumes of 0.1% solution of dye in brine. The values obtained were 1.59 mg dye/gm core and 1.47 mg dye/gm core. In two other tests, water-wet samples were driven down to irreducible brine saturation with Soltrol and then flooded with 0.1% solution of dye in brine. The adsorption capacities obtained in these tests were 1.59 mg dye/gm core and 1.60 mg dye/gm core, in excellent agreement with the first two results reported above. Hence there can be little doubt that the dye adsorption... 

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