Table 15 Elemental composition of asphaltenes extracted from crude oil after contact with Sr2+-based FW and SW (with and without scale).
From: Influence of inorganic scale formation on asphaltene behavior during water injection
Element name | With scale formation (wt%) | Without scale formation (wt%) |
|---|---|---|
Carbon (C) | 89.22 | 88.86 |
Sulfur (S) | 5.17 | 5.15 |
Oxygen (O) | 2.33 | 6.24 |
Nitrogen (N) | 0.98 | 0.04 |
Silicon (Si) | 0.34 | 0.79 |
Nickel (Ni) | 0.11 | 0 |
Vanadium (V) | 0.08 | 0.04 |
Iron (Fe) | 0.04 | 0 |
Chromium (Cr) | 0.01 | 0 |
Aluminum (Al) | 0 | 0.05 |
