GUIDE TO WORLD CRUDES: BG Group assays Brazilian Iracema crude
BG Group published a crude oil assay in February for its jointly owned Iracema discovery, which began producing third-quarter 2014 on Block BM-S-11 in the Santos basin off Brazil (OGJ Online, Oct. 14, 2014).
Produced from the Cidade de Mangaratiba floating production, storage, and offloading (FSPO) vessel in 2,200 m of water, about 240 km offshore, Iracema is a low-sulfur, medium-density crude.
The 4-RJS-647 well, first to be connected to the unit, can produce more than 30,000 b/d.
The FPSO will be connected to eight production wells and eight injection wells.
Cidade de Mangaratiba can process 150,000 b/d of oil and 283 MMscfd of gas, the highest production capacity FPSO to be brought online in the Santos basin. It can store 1.6 million bbl of oil. Plateau production will be in 2016.
Petrobras operates BM-S-11 with 65% interest. BG Group and Petrogal Brasil hold 25% and 10%, respectively.
Whole crude
API gravity at 60/60° F.: 31.4
Specific gravity at 60° F.: 0.8688
UOP K factor: 11.9
Total sulfur (D-4294), wt %: 0.286
Mercaptan sulfur, ppm: 40.1
H2S in liquid, ppm: < 1
H2S in vapor: < 5
Total acid no., mg KOH/g: 0.15
Total nitrogen, ppm: 2,530
Wax, wt %: 6.5
Wax appearance, °C.: 23.84
Reid vapor pressure at 100° F., psi: 6.50
Ash content, wt %: < 0.001
Total salts, lb/1,000 bbl (ptb): 10
Pour point, °F.: 10
Flash point, °F.: < 104
Vis. at 68° F., cst: 24.68
Vis. at 86° F., cst: 15.50
Vis. at 104° F., cst: 10.79
Vis. at 122° F., cst: 7.943
Vis. at 140° F., cst: 6.320
Iron, ppm (wt): < 0.500
Nickel, ppm (wt): 5.84
Vanadium, ppm (wt): 4.43
Sodium, ppm (wt): 2.058
Aluminum, ppm (wt): < 5
Silicon, ppm (wt): < 10
Magnesium, ppm (wt): < 0.500
Calcium, ppm (wt): < 0.844
Mercury, ppb (wt): < 1
Microcarbon residue, wt %: 2.66
Asphaltenes, wt %: < 0.50
n-Pentane insolubles, wt %: 0.02
Toulene insolubles, wt %: 0.01
Organic and inorganic chlorides, ppm: 1.8
IBP to 70° F.
API gravity at 60/60° F.: 133.98
Specific gravity at 60° F.: 0.5330
Yield on crude, wt %: 0.96
Yield on crude, vol %: 1.56
Cumulative yield, wt %: 0.96
Cumulative yield, vol %: 1.56
70-212° F.
API gravity at 60/60° F.: 77.66
Specific gravity at 60° F.: 0.6765
Yield on crude, wt %: 6.03
Yield on crude, vol %: 7.74
Cumulative yield, wt %: 6.99
Cumulative yield, vol %: 9.31
Total sulfur (D-2622), wt %: 0.0237
Mercaptan sulfur, ppm: 106.2
H2S in liquid, ppm: < 1
Paraffins, vol %: 76.92
Naphthenes, vol %: 21.28
Aromatics, vol %: 1.80
Research octane number (RON): 71
Motor octane number (MON): 67
212-302° F.
API gravity at 60/60° F.: 55.45
Specific gravity at 60° F.: 0.7569
Yield on crude, wt %: 7.94
Yield on crude, vol %: 9.11
Cumulative yield, wt %: 14.93
Cumulative yield, vol %: 18.42
Total sulfur (D-2622), wt %: 0.0184
Mercaptan sulfur, ppm: 34.5
H2S in liquid, ppm: < 1
Total acid no., mg KOH/g: 0.10
Refractive index at 20° C., °F.: 1.42005
Paraffins, vol %: 70.32
Naphthenes, vol %: 21.09
Aromatics, vol %: 8.59
RON: 51
MON: 48
Organic and inorganic chlorides, ppm: < 1
302-374° F.
API gravity at 60/60° F.: 49.35
Specific gravity at 60° F.: 0.7824
Yield on crude, wt %: 4.22
Yield on crude, vol %: 4.68
Cumulative yield, wt %: 19.15
Cumulative yield, vol %: 23.11
Total sulfur (D-4294), wt %: 0.0274
Mercaptan sulfur, ppm: 48.9
H2S in liquid, ppm: < 1
Total acid no., mg KOH/g: 0.09
Refractive index at 20° C., °F.: 1.43375
Paraffins, vol %: 64.26
Naphthenes, vol %: 22.85
Aromatics, vol %: 12.89
Naphthalenes, vol %: 1.23
Organic and inorganic chlorides, ppm: < 1
374-455° F.
API gravity at 60/60° F.: 41.99
Specific gravity at 60° F.: 0.8156
Yield on crude, wt %: 7.42
Yield on crude, vol %: 7.90
Cumulative yield, wt %: 26.56
Cumulative yield, vol %: 31.01
Total sulfur (D-4294), wt %: 0.0393
Mercaptan sulfur, ppm: 14.9
H2S in liquid, ppm: < 1
Total acid no., mg KOH/g: 0.08
Total nitrogen, ppm: 9.4
Refractive index at 20° C., °F.: 1.45090
Naphthalenes, vol %: 1.61
Aromatics, vol %: 14.6
Smoke point, mm: 23.5
Cetane index: 41.5
Freeze point, °F.: -58
Pour point, °F.: < -71
Vis. at 122° F., cst: 1.265
Vis. at 210° F., cst: 0.7138
455-536° F.
API gravity at 60/60° F.: 37.11
Specific gravity at 60° F.: 0.8392
Yield on crude, wt %: 7.00
Yield on crude, vol %: 7.25
Cumulative yield, wt %: 33.57
Cumulative yield, vol %: 38.26
UOP K factor: 11.1
Aniline point, °F.: 147.7
Total sulfur (D-4294), wt %: 0.0802
Mercaptan sulfur, ppm: 5.7
H2S in liquid, ppm: < 1
Total acid no., mg KOH/g: 0.08
Total nitrogen, ppm: 19.5
Refractive index at 20° C., °F.: 1.46510
Naphthalenes, vol %: 2.22
Aromatics, vol %: 20.0
Smoke point, mm: 17
Cetane index: 47.7
Freeze point, °F.: -11
Pour point, °F.: -27
Vis. at 122° F., cst: 2.087
Vis. at 210° F., cst: 1.013
536-650° F.
API gravity at 60/60° F.: 32.31
Specific gravity at 60° F.: 0.8638
Yield on crude, wt %: 12.56
Yield on crude, vol %: 12.63
Cumulative yield, wt %: 46.12
Cumulative yield, vol %: 50.88
UOP K factor: 11.2
Aniline point, °F.: 164.9
Total sulfur (D-4294), wt %: 0.0798
Mercaptan sulfur, ppm: 4.9
H2S in liquid, ppm: < 1
Total acid no., mg KOH/g: 0.1
Total nitrogen, ppm: 353
Refractive index at 20° C., °F.: 1.47870
Smoke point, mm: 14
Cetane index: 49.7
Pour point, °F.: 16
Vis. at 122° F., cst: 4.453
Vis. at 210° F., cst: 1.797
650°+ F.
API gravity at 60/60° F.: 17.73
Specific gravity at 60° F.: 0.9482
Yield on crude, wt %: 53.88
Yield on crude, vol %: 49.37
Cumulative yield, wt %: 100.00
Cumulative yield, vol %: 100.25
Total sulfur (D-4294), wt %: 0.457
Total acid no., mg KOH/g: 0.21
Total nitrogen, ppm: 3,524
Ash content, wt %: 0.0487
Vis. at 122° F., cst: 487.3
Vis. at 140° F., cst: 296.0
Vis. at 210° F., cst: 42.34
Vis. at 275° F., cst: 14.80
Iron, ppm (wt): 1.39
Nickel, ppm (wt): 10.7
Vanadium, ppm (wt): 8.31
Microcarbon residue, wt %: 5.32
Asphaltenes, wt %: < 0.50
n-Pentane insolubles, wt %: 0.05
Toulene insolubles, wt %: 0.04
650-1,000° F.
API gravity at 60/60° F.: 23.23
Specific gravity at 60° F.: 0.9145
Yield on crude, wt %: 26.43
Yield on crude, vol %: 25.11
Cumulative yield, wt %: 72.56
Cumulative yield, vol %: 76.00
UOP K factor: 11.6
Aniline point, °F.: 181.4
Total sulfur (D-4294), wt %: 0.316
Total acid no., mg KOH/g: 0.14
Total nitrogen, ppm: 1,679
Refractive index at 20° C.: 1.50890
Pour point, °F.: 97
Vis. at 122° F., cst: 46.09
Vis. at 210° F., cst: 8.465
Vis. at 275° F., cst: 3.875
Iron, ppm (wt): < 0.500
Nickel, ppm (wt): < 0.500
Vanadium, ppm (wt): < 0.500
Microcarbon residue, wt %: 0.14
1,000°+ F.
API gravity at 60/60° F.: 12.80
Specific gravity at 60° F.: 0.9806
Yield on crude, wt %: 27.44
Yield on crude, vol %: 24.31
Cumulative yield, wt %: 100.00
Cumulative yield, vol %: 100.31
UOP K factor: 11.6
Total sulfur (D-4294), wt %: 0.614
Total acid no., mg KOH/g: 0.34
Total nitrogen, ppm: 5,289
Ash content, wt %: 0.1011
Pour point, °F.: 118
Vis. at 210° F., cst: 704.7
Vis. at 275° F., cst: 121.6
Iron, ppm (wt): 2.55
Nickel, ppm (wt): 23.9
Vanadium, ppm (wt): 18.6
Microcarbon residue, wt %: 11.0
Asphaltenes, wt %: < 0.50
n-Pentane insolubles, wt %: 0.09
Toulene insolubles, wt %: 0.08