Cation Equilibria Studies on Fractionated Natural Clays

Walter Fertl and F. W. Jessen
Department of Petroleum Engineering, The University of Texas, Austin, Texas

Abstract: Various fractions, ranging in size from 5 to 0·05 µ of natural clays from Mexico and Wyoming, occurring as heterogeneous or multicomponent cationic systems, were studied under specific equilibrium conditions of salt concentrations in the range found in many drilling fluids and formation waters.

Glass electrodes were utilized in this study. A Tektite electrode was found to have specific sensitivity to divalent cations.

Clays and Clay Minerals; 1968 v. 16; no. 4; p. 313-318; DOI: 10.1346/CCMN.1968.0160408
© 1968, The Clay Minerals Society
Clay Minerals Society (www.clays.org)