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Overview
The Captain field is located 68 miles north of Aberdeen and its oil is relatively acidic, heavy and viscous.
Captain produces to a Floating Production Storage Offtake Vessel (FPSO). Crude oil is exported via shuttle tankers to customers in Northwest Europe (usual cargo size 500 thousand barrels) and to Nigg for further trans-shipping. The current field production is approximately 80,000 barrel per day (and 10 million standard cubic feet per day of gas), with typical Chevron entitlement of 4 cargoes per month. A small amount of gas is exported to St Fergus.
Whole Crude Properties *
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| Gravity, API° | 19.1 | 19.1 |
| Gravity SG | 0.9396 | 0.9394 |
| Sulfur, wt% | 0.70 | 0.70 |
| Total Nitrogen, ppm | | 1990 |
| Hydrogen, wt% | | 11.8 |
| Acid Number, mg KOH/g | 2.36 | |
| Pour Point, °F / °C | -20 / -29 | -20 / -29 |
| Charact. Factor (K-FACTOR) | | 11.6 |
| Viscosity, cSt at 40°C (104°F) | 164 | |
| Viscosity, cSt at 50°C (122°F) | 92.3 | 92.3 |
| Vanadium, ppm | | 11 |
| Nickel, ppm | | 5.0 |
| MCR, wt% | | 4.00 |
| Ramsbottom Carbon, wt% | | 3.80 |
| Asphaltenes, (H.C7) wt% | | 0.54 |
* Disclaimer
While we believe that this assay is representative of the expected
commercial crude, it does not guarantee production quality, and users are solely responsible
for their use of the assay. No warranties are given regarding the assay accuracy or
any results from its use. Chevron does not warrant or make any representations
regarding the use or the results of the use of the foregoing opinion, information or
data in this site in terms of their correctness, accuracy, results, use,
quality, reliability, or otherwise.
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