Competitive Adsorption of a Hybrid Surfactant System onto Five Minerals, Berea Sandstone, and Limestone

Abstract

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.

Meeting Name

SPE Annual Technical Conference and Exhibition (2004: Sep. 26-29, Houston, TX)

Department(s)

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

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2004 Society of Petroleum Engineers (SPE), All rights reserved.

Publication Date

01 Sep 2004

Link to Full Text

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