GUIDE TO WORLD CRUDES: New development plans prompt Peregrino assay update

Statoil has published an updated crude oil assay for its Peregrino field, which began producing second-quarter 2011 from licenses BMC-7 and BMC-47 in 100 m of water 53 miles off Brazil in the Campos basin (OGJ Online, Apr. 11, 2011).

Operated by Statoil (60%) in partnership with China's Sinochem Group (40%), Peregrino field produces about 100,000 b/d of heavy, high-sulfur, high-viscosity crude oil (OGJ Online, Apr. 15, 2011).

Plans to develop a second phase of the field are under way, with a final investment decision on the project due by yearend 2014, according to a Feb. 20, 2014, release from Statoil Brazil.

Located in 100 m of water 53 miles off Brazil in the Campos basin, Peregrino field includes two drilling platforms, Peregrino A (shown) and B, as well as a floating production, storage, and offloading vessel. Photo from Statoil by Oyvind Hagen.

Whole crude

Density at 60° F.: 0.976
API gravity at 60/60° F.: 13.4
UOP K factor: 11.8
Total sulfur, wt %: 1.890
Mercaptan sulfur, ppm: 55.0
Total nitrogen, ppm: 7,042
Basic nitrogen, ppm: 1,878
Total acid no., mg KOH/g: 0.92
Reid vapor pressure, kPa: 0.5
Vis. at 77° F., cst: 27,088
Vis. at 100° F., cst: 6,361
Vis. at 130° F., cst: 1,392
Paraffins, vol %: 30.8
Naphthenes, vol %: 16.2
Aromatics, vol %: 53.0
Pour point, °F.: 54
Wax, wt %: 0.9
Asphaltenes, wt %: 17.2
Micro carbon residue, wt %: 12.7
Rams. carbon residue, wt %: 12.0
Vanadium, ppm (wt): 37.2
Nickel, ppm (wt): 23.6
Iron, ppm (wt): 3.9
i-C4, wt %: 0.05
n-C4, wt %: 0.08
i-C5, wt %: 0.06
n-C5, wt %: 0.05
C5H10, wt %: 0.02
C6 paraffins, wt %: 0.26
C₆ naphthenes, wt %: 0.17
C7 paraffins, wt %: 0.34
C₇ naphthenes, wt %: 0.24
C7H7, wt %: 0.04

Atmospheric distillation

Pentanes to 150° F.

Yield on crude, wt %: 0.2
Yield on crude, vol %: 0.3
Cumulative yield, wt %: 0.3
Density at 60° F.: 0.658
API gravity at 60/60° F.: 83.6
Sulfur, wt %: 0.005
Mercaptan sulfur, ppm: 0.1
Total acid no., mg KOH/g: 0.04
RON (clear): 81.7
MON (clear): 80.4
Paraffins, vol %: 92.8
Naphthenes, vol %: 7.2
Hydrogen, wt %: 16.3

150-210° F.

Yield on crude, wt %: 0.5
Yield on crude, vol %: 0.7
Cumulative yield, wt %: 0.8
Density at 60° F.: 0.716
API gravity at 60/60° F.: 66.2
Sulfur, wt %: 0.011
Mercaptan sulfur, ppm: 1.5
Total acid no., mg KOH/g: 0.11
RON (clear): 55.0
MON (clear): 52.7
Paraffins, vol %: 60.5
Naphthenes, vol %: 39.0
Aromatics, vol %: 0.5
Hydrogen, wt %: 15.4

210-300° F.

Yield on crude, wt %: 1.8
Yield on crude, vol %: 2.4
Cumulative yield, wt %: 2.6
Density at 60° F.: 0.749
API gravity at 60/60° F.: 57.4
UOP K factor: 12.0
Sulfur, wt %: 0.028
Mercaptan sulfur, ppm: 17.6
Total acid no., mg KOH/g: 0.17
RON (clear): 53.9
MON (clear): 50.9
Paraffins, vol %: 54.4
Naphthenes, vol %: 37.2
Aromatics, vol %: 8.4
Aniline point, °F.: 127.6
Hydrogen, wt %: 14.6

300-400° F.

Yield on crude, wt %: 2.9
Yield on crude, vol %: 3.6
Cumulative yield, wt %: 5.5
Density at 60° F.: 0.790
API gravity at 60/60° F.: 47.5
UOP K factor: 11.8
Sulfur, wt %: 0.390
Mercaptan sulfur, ppm: 29.3
Total acid no., mg KOH/g: 0.07
Vis. at 77° F., cst: 1.10
Vis. at 100° F., cst: 0.91
RON (clear): 45.3
MON (clear): 44.0
Paraffins, vol %: 46.7
Naphthenes, vol %: 28.2
Aromatics, vol %: 25.1
Freeze point, °F.: -112
Smoke point, mm: 24
Cetane index: 40
Naphthalenes, vol %: 0.2
Aniline point, °F.: 125.5
Hydrogen, wt %: 14.1

400-500° F.

Yield on crude, wt %: 4.6
Yield on crude, vol %: 5.4
Cumulative yield, wt %: 10.1
Density at 60° F.: 0.838
API gravity at 60/60° F.: 37.5
UOP K factor: 11.6
Sulfur, wt %: 1.020
Mercaptan sulfur, ppm: 12.1
Total nitrogen, ppm: 6
Basic nitrogen, ppm: 3
Total acid no., mg KOH/g: 0.04
Vis. at 100° F., cst: 1.68
Vis. at 130° F., cst: 1.31
Pour point, °F.: -77
Cloud point, °F.: -72
Freeze point, °F.: -64
Smoke point, mm: 19
Cetane index: 41
Naphthalenes, vol %: 2.1
Aniline point, °F.: 126.5
Hydrogen, wt %: 13.4

500-570° F.

Yield on crude, wt %: 4.3
Yield on crude, vol %: 4.9
Cumulative yield, wt %: 14.5
Density at 60° F.: 0.866
API gravity at 60/60° F.: 32.0
UOP K factor: 11.5
Sulfur, wt %: 1.230
Mercaptan sulfur, ppm: 6.4
Total nitrogen, ppm: 43
Basic nitrogen, ppm: 35
Total acid no., mg KOH/g: 0.15
Vis. at 100° F., cst: 2.99
Vis. at 130° F., cst: 2.16
Pour point, °F.: -42
Cloud point, °F.: -34
Freeze point, °F.: -19
Smoke point, mm: 16
Cetane index: 44
Naphthalenes, vol %: 4.2
Aniline point, °F.: 130.7
Hydrogen, wt %: 12.9

570-650° F.

Yield on crude, wt %: 5.7
Yield on crude, vol %: 6.2
Cumulative yield, wt %: 20.2
Density at 60° F.: 0.890
API gravity at 60/60° F.: 27.5
UOP K factor: 11.5
Sulfur, wt %: 1.470
Total nitrogen, ppm: 435
Basic nitrogen, ppm: 326
Total acid no., mg KOH/g: 0.49
Vis. at 100° F., cst: 5.86
Vis. at 130° F., cst: 3.89
Pour point, °F.: -4
Cloud point, °F.: -1
Cetane index: 46
Naphthalenes, vol %: 5.8
Aniline point, °F.: 137.2
Hydrogen, wt %: 12.5

650-700° F.

Yield on crude, wt %: 3.7
Yield on crude, vol %: 4.0
Cumulative yield, wt %: 23.9
Density at 60° F.: 0.912
API gravity at 60/60° F.: 23.7
UOP K factor: 11.4
Sulfur, wt %: 1.550
Total nitrogen, ppm: 1,390
Basic nitrogen, ppm: 782
Total acid no., mg KOH/g: 0.70
Vis. at 100° F., cst: 13.10
Vis. at 130° F., cst: 7.64
Pour point, °F.: 23
Cetane index: 47
Aniline point, °F.: 142.5
Hydrogen, wt %: 12.3

700°+ F.

Yield on crude, wt %: 76.1
Yield on crude, vol %: 72.5
Cumulative yield, wt %: 100.0
Density at 60° F.: 1.024
API gravity at 60/60° F.: 6.8
UOP K factor: 11.3
Sulfur, wt %: 2.140
Total nitrogen, ppm: 9,147
Basic nitrogen, ppm: 2,402
Total acid no., mg KOH/g: 0.16
Vis. at 130° F., cst: 809,334.00
Vis. at 180° F., cst: 15,044.00
Vis. at 210° F., cst: 2,732.00
Pour point, °F.: 112
Wax, wt %: 1.2
Asphaltenes, wt %: 22.6
Micro carbon residue, wt %: 16.7
Rams. carbon residue, wt %: 15.8
Vanadium, ppm (wt): 48.9
Nickel, ppm (wt): 31.0
Iron, ppm (wt): 5.1

Vacuum distillation

700-850° F.

Yield on crude, wt %: 14.9
Yield on crude, vol %: 15.4
Density at 60° F.: 0.941
API gravity at 60/60° F.: 18.9
UOP K factor: 11.4
Sulfur, wt %: 1.480
Total nitrogen, ppm: 2,404
Basic nitrogen, ppm: 993
Total acid no., mg KOH/g: 0.58
Vis. at 130° F., cst: 35.00
Vis. at 180° F., cst: 12.4
Vis. at 210° F., cst: 7.67
Pour point, °F.: 55
Aniline point, °F.: 150.4
Hydrogen, wt %: 11.9
Wax, wt %: 0.7

850-950° F.

Yield on crude, wt %: 10.6
Yield on crude, vol %: 10.7
Density at 60° F.: 0.966
API gravity at 60/60° F.: 14.9
UOP K factor: 11.5
Sulfur, wt %: 1.570
Total nitrogen, ppm: 3,405
Basic nitrogen, ppm: 1,199
Total acid no., mg KOH/g: 0.23
Vis. at 130° F., cst: 193.00
Vis. at 180° F., cst: 40.9
Vis. at 210° F., cst: 20.80
Pour point, °F.: 76
Aniline point, °F.: 159.1
Hydrogen, wt %: 11.5
Wax, wt %: 1.1
Micro carbon residue, wt %: 0.1
Rams. carbon residue, wt %: 0.1

950 - 1,050° F.

Yield on crude, wt %: 10.2
Yield on crude, vol %: 10.0
Density at 60° F.: 0.993
API gravity at 60/60° F.: 11.0
UOP K factor: 11.4
Sulfur, wt %: 1.930
Total nitrogen, ppm: 5,007
Basic nitrogen, ppm: 1,671
Total acid no., mg KOH/g: 0.07
Vis. at 130° F., cst: 2,204.00
Vis. at 180° F., cst: 214.0
Vis. at 210° F., cst: 79.40
Pour point, °F.: 87
Aniline point, °F.: 165.3
Hydrogen, wt %: 11.3
Wax, wt %: 1.4
Asphaltenes, wt %: 3.4
Micro carbon residue, wt %: 1.9
Rams. carbon residue, wt %: 1.4
Vanadium, ppm (wt): 0.1
Nickel, ppm (wt): 0.1

1,050° + F.

Yield on crude, wt %: 40.5
Yield on crude, vol %: 36.4
Density at 60° F.: 1.081
API gravity at 60/60° F.: -0.6
UOP K factor: 11.2
Sulfur, wt %: 2.590
Total nitrogen, ppm: 14,174
Basic nitrogen, ppm: 3,420
Vis. at 210° F., cst: 188,754,561
Vis. at 275° F., cst: 361,194
Pour point, °F.: 229
Wax, wt %: 1.3
Asphaltenes, wt %: 41.8
Micro carbon residue, wt %: 30.9
Rams. carbon residue, wt %: 29.4
Vanadium, ppm (wt): 91.9
Nickel, ppm (wt): 58.3
Iron, ppm (wt): 9.7