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Mechanism of shales stabilization by hydrophobized poly(ethylene glycol)/K+ in water-base drilling fluids
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VILLABONA-ESTUPIÑAN Santiago,de ALMEIDA RODRIGUES JUNIOR Jorge,de ABREU Carolina Ferreira,NASCIMENTO Regina Sandra Veiga
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Table 2. Composition of WBDF and blank control solution.
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| Experimental fluid | Additive mass/g | | Xanthan gum | Hydroxypropyl starch | PEG | KCl | NaOH | BaSO4 | CaCO3 | | BF | 1.2 | 8 | 0 | 0 | 0.5 | 30 | 9 | | F1 | 2.0 | 8 | 10.5 (PEG2000) | 10.5 | 0.5 | 30 | 9 | | F2 | 1.2 | 8 | 10.5 (mPEG2000-OA) | 10.5 | 0.5 | 30 | 9 | | F3 | 2.0 | 8 | 10.5 (OA-PEG2000-OA) | 10.5 | 0.5 | 30 | 9 |
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