Table 1 Comparison of chemical composition of produced water from Venture and other fields
From: Monitoring and modeling the dispersion of produced water on the Scotian Shelf
Component/field | Unit | Venture | Thebauda | North seab | Reference location (MID-depth) |
|---|---|---|---|---|---|
Salinity | ppt | 203.50 | 19.90 | – | 31.64 |
BTEX | mg/L | 12.95 | 33.56 | 6.38 | <1.00 |
Total alkanes | μg/L | 364.30 | 187.80 | – | <0.10 |
Naphthalenes | μg/L | 187.20 | 1154.55 | 1280.00 | <0.10 |
Phenanthrenes | μg/L | 11.00 | 5.35 | 71.80 | nd |
Dibenzothiophenes | μg/L | 0.50 | 0.50 | 20.85 | nd |
Fluorene | μg/L | 16.70 | 22.05 | 10.80 | nd |
Chrysene | μg/L | 0.20 | nd | 0.27 | nd |
Total phenols | μg/L | 10,530.00 | 213,174.00 | 7277.50 | <0.10 |
Cadmium | μg/L | 2.00 | nd | <0.0030 | – |
Chromium | μg/L | <10.00 | <10.00 | <0.030 | – |
Iron | μg/L | 137,000.00 | 16,700.00 | 6875.00 | 1.84 |
Copper | μg/L | <10.00 | <10.00 | <0.03 | 0.15 |
Manganese | μg/L | 24,100.00 | 2100.00 | – | 0.48 |
Mercury | μg/L | 0.10 | 0.06 | 0.020 | – |
Nickle | μg/L | <20.00 | <20.00 | <0.030 | 0.25 |
Zinc | μg/L | 2400.00 | 73.50 | 145.50 | – |
Lead | μg/L | 27.00 | 3.00 | <0.013 | 0.10 |
Barium | μg/L | 1240,000.00 | 102,000.00 | 156,000.00 | – |
Silicate | μM/L | 374.30 | 80.70d | – | 0.12 |
Nitrate | μM/L | 1.30 | 0.80d | – | 0.76 |
Ammonia | μM/L | 22,518.00 | 2737.00d | 1174.00c | 0.53 |
Nitrite | μM/L | 1.70 | 0.80d | – | 0.14 |