Nigeria Usan crude oil Assay
Usan API gravity: 30.6
Anything below 15 API would be considered an extra-heavy crude. Tim FitzgibbonMore API
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API = (141.5/Specific Gravity) - 131.5
Barrels of Usan crude oil per metric ton
In the oil industry, quantities of crude oil are often measured in metric tons. Usan 7.2 bbl per MT.
Usan Sulfur: 0.23%
Sulfur is considered an undesirable contaminant because, when burned, it generates sulfur oxides.
As a general rule, a crude oil grade with high sulfur content will have a lower value. This type of crude is often referred to as a sour crude.
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Usan Specific gravity 0.873
Liquids with a density lower than water, which includes most crude oil grades and petroleum products, will have a specific gravity between 0.0 and 1.0.Production of petroleum products from crude oil Usan
| Parameter | Usan |
|---|---|
| Cut volume, % | 100 |
| API Gravity, | 28.9998 |
| Specific Gravity (60/60F), | 0.881621 |
| Carbon, wt % | 86.6084 |
| Hydrogen, wt % | 12.8936 |
| Pour point, F | -107.307 |
| Neutralization number (TAN), MG/GM | 1.52512 |
| Sulfur, wt% | 0.272915 |
| Viscosity at 20C/68F, cSt | 13.8429 |
| Viscosity at 40C/104F, cSt | 7.45274 |
| Viscosity at 50C/122F, cSt | 5.77858 |
| Mercaptan sulfur, ppm | 0.602885 |
| Nitrogen, ppm | 2262.01 |
| CCR, wt% | 3.0775 |
| N-Heptane Insolubles (C7 Asphaltenes), wt% | 0.0467793 |
| Nickel, ppm | 14.9221 |
| Vanadium, ppm | 3.32452 |
| Calcium, ppm | 3.44 |
| Reid Vapor Pressure (RVP) Whole Crude, psi | 6.57687 |
| Hydrogen Sulfide (dissolved), ppm | 0 |
| Salt content, ptb | 5.1 |
| Paraffins, vol % | 21.6525 |
| Naphthenes, vol % | 44.0745 |
| Aromatics (FIA), vol % | 34.273 |
| Distillation type, TBP | -1 |
| IBP, F | -33.3087 |
| 5 vol%, F | 143.81 |
| 10 vol%, F | 214.235 |
| 20 vol%, F | 323.652 |
| 30 vol%, F | 420.43 |
| 40 vol%, F | 500.434 |
| 50 vol%, F | 576.958 |
| 60 vol%, F | 659.784 |
| 70 vol%, F | 754.47 |
| 80 vol%, F | 870.759 |
| 90 vol%, F | 1041.18 |
| 95 vol%, F | 1186.32 |
| EP, F | 1438.03 |
| Freeze point, F | -1 |
| Smoke point, mm | -1 |
| Naphthalenes (D1840), vol% | -1 |
| Viscosity at 100C/212F, cSt | 2.29969 |
| Viscosity at 150C/302F, cSt | 1.28486 |
| Cetane Index 1990 (D4737), | -1 |
| Cloud point, F | -1 |
| Aniline pt, F | -1 |
