Competitive Adsorption of a Hybrid Surfactant System onto Five Minerals, Berea Sandstone, and Limestone
The adsorption/desorption results for two surfactant systems and for a mixture of the two onto five minerals and two porous media were presented. The systems were composed of Chaser International CD104Y™ (CD) and a calcium lignosulfonate (CLS), Lignosite® 100. Two series of experiments were carried out: static adsorption of CLS, CD, and CLS/CD mixtures onto five pure minerals (silica, montmorillonite, kaolinite, dolomite, and calcite); and dynamic adsorption of CLS, CD, and CLS/CD mixtures onto core samples of Berea sandstone and Indian limestone. CLS with an initial concentration of 5000 mg/L adsorption density onto silica was essentially zero; CLS adsorption density for the other four minerals ranged from 0.5 to 10 mg/g on calcite, dolomite, kaolinite, and montmorillonite, respectively. CD with an initial concentration of 500 mg/L adsorption density onto the five minerals ranged from 0.4 to 1.2 mg/g for calcite, silica, kaolinite, dolomite, and montmorillonite, respectively. CD adsorption density onto five minerals decreased from 20 to 70% when CD was mixed with CLS. The reduction of CD adsorption onto clay was higher than that onto the other minerals. Adsorption equilibrium time of CD and CLS onto Berea sandstone was much longer than that onto Indiana limestone, while competitive adsorption of CD and CLS generally took several days.
R. B. Grigg et al., "Competitive Adsorption of a Hybrid Surfactant System onto Five Minerals, Berea Sandstone, and Limestone," Proceedings of the SPE Annual Technical Conference and Exhibition (2004, Houston, TX), pp. 3345-3356, Society of Petroleum Engineers (SPE), Sep 2004.
The definitive version is available at http://dx.doi.org/10.2118/90612-MS
SPE Annual Technical Conference and Exhibition (2004: Sep. 26-29, Houston, TX)
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Competitive Adsorption; Hybrid Surfactant Systems; Solution Alternating With Gas (SAG); Water Alternating With Gas (WAG); Adsorption; Density (Specific Gravity); Injection (Oil Wells); Limestone; Petroleum Reservoirs; Porous Materials; Sandstone; Surface Tension; Surface Active Agents
Article - Conference proceedings
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