Chapter 5
8
6
4
2
О
100
I Water on top oil layer
MlWater in middle oil layer
Solid in oil layer
Sξ 80
I I Oil layer
I Rag layer
HB Bottom layer
PR3 PR4 PR5 PR6 PR3 PR4 PR5 PR6
200 ppm Demulsifier
200 ppm Demulsifier
Without silicate
8
6
4
2
0
100
I IWaterontop oil layer
Water in middle oil layer
Solid in oil layer
S? 80
c
O
3 60
л
I Oil layer
I Rag layer
Ш Bottom layer
PR3 PR4 PR5 PR6 PR3 PR4 PR5 PR6
200 ppm Demulsifier
200 ppm Demulsifier
With 4×10'4 M silicate
Figure 5.21 Water and solid content in oil layer and solid distribution in different
layers adding 200 ppm PR3 to PRβ with and without silicate, N∕B 0.7
In all the samples, residual water and solid content in oil with silicate are
smaller than that without silicate. With silicate, less solids stay in the oil and more
solids settle to the bottom.
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