Mechanism of shales stabilization by hydrophobized poly(ethylene glycol)/K+ in water-base drilling fluids

VILLABONA-ESTUPIÑAN Santiago,de ALMEIDA RODRIGUES JUNIOR Jorge,de ABREU Carolina Ferreira,NASCIMENTO Regina Sandra Veiga

Fig. 4. Adsorption isotherms of PEG on bentonite, in the KCl presence.