Page 101 - Petrophysics 2E

74 PETROPHYSICS: RESERVOIR ROCK PROPERTIES

TABLE 2.9
COMPOSITION AND REFINERY FRACTIONS OF A NAPHTHENIC CRUDE OIL [33]
Molecular Type Wt% Molecular Size Wt%

Naphthenes 49 Gasoline (C4 - Clo) 31
Paraffins 30 Kerosone (C11 - C12) 10
Aromatics 15 Gas Oil (C13 - C20) 15
AsphaltsBesins 6 Lubricating oil (C20 - Q9) 20
Residium (C40+)

TABLE 2.10
U.S. BUREAU MINES DISTILUTION METHOD FOR ANALYSIS OF CRUDE OIL,
OF
PAUL-KUNE No. 1
Oklahoma City Field Oklahoma
Prue Sand Oklahoma County
6,511-6,646 feet Sample 38005 1 IN-3N-Indian

General Characteristics
Specific gravity, 0.844 A.P.I. gravity, 36.2"
Sulfur, percent, 0.16 Color, brownish green
Saybolt Universal viscosity at
77"F, 62 sec., at 100"F, 50 sec.

Distillation, Bureau of Mines Hempel Method
Distillation at atmospheric First drop 86'F
pressure, 752 mm

S.U. Cloud
Fraction Sum SP. Gr. "A.P.I. visc. test
No. At OF Percent Percent 60160°F 60°F C.I. 100°F "F
1 122 - - - - -
2 167 1.7 1.7 0.672 79.1 -
3 212 3.0 4.7 .702 70.1 13
4 257 4.9 9.6 .734 61.3 19
5 302 4.7 14.3 .755 55.9 21
6 347 4.7 19.0 ,772 51.8 23
7 392 4.7 23.7 .787 48.3 23
8 437 5.0 28.7 BO1 45.2 24
9 482 5.3 34.0 .815 42.1 26
10 527 6.7 40.7 .829 39.2 28
Continued