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. 6. Region of the FT-IR spectra for: (a) stretching and (b) bending vibration area.