Table 16 Elemental composition of asphaltenes extracted from crude oil after contact with Sr2+-based FW and 4 × Na2SO4-enriched SW, under scale-forming and non-scaling conditions.
From: Influence of inorganic scale formation on asphaltene behavior during water injection
Element name | With scale formation (wt%) | Without scale formation (wt%) |
|---|---|---|
Carbon (C) | 88.64 | 88.16 |
Sulfur (S) | 5.78 | 7.21 |
Oxygen (O) | 4.06 | 4.91 |
Nitrogen (N) | 0.95 | 0.76 |
Silicon (Si) | 0.35 | 0.88 |
Nickel (Ni) | 0.01 | 0.14 |
Vanadium (V) | 0.11 | 0 |
Iron (Fe) | 0.04 | 0 |
Chromium (Cr) | 0.06 | 0 |
Aluminum (Al) | 0 | 0 |
