Chapter 5
Demulsifier
Figure 5.18 shows bar diagrams of residual water/ solid content in oil layer
and solid distribution in different layers using 200 ppm demulsifiers PR3 to PRe-
The red and black dashed lines show the desired residual water and solid content
in oil (2.0% and 0.9%, respectively). For the sample with N/В ratio adding 200
ppm PR4, rag layer is too thin that solid fraction in rag layer is considered as zero.
Dilution ratio 0.7
Water in middle oil layer
Water at bottom oil layer
100∣—.--------.---- ■ —
Oil layer
80 r≡9 layer
И Bottom layer
Demulsifier
Demulsifier
Dilution ratio 4.0
Figure 5.18 Water and solid content in oil layer and solid distribution in different
layers adding 200 ppm demulsifiers PR3 to PR6
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