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78 PETROPHYSICS: RESERVOIR ROCK PROPERTIES
H H
CYCLOHEXANE I I 0
c6 H12 I I
8P=80.74 OC
H H
H H H H
BICYCLO DECANE
(DECAL IN 1
C10H18
BP=195.65OC
H H H H
Figure 2.22. Chemical structure of cyclohexane and decaltn.
BENZENE
c6 H6
BP=80.1 OC
CH CH
H C ~ C/\C H
NAPHTHALENE I II I
HC,)ckC\ /CH
c10 "8 c.k
BP=218OC
CH
Figure 2.23. Chemical stpchcre of several aromatic compounds found in mde oils.
in petroleum contain side chains of various lengths. The asphalts and
resins are composed of high-molecular-weight condensed ring structures
containing aromatics, saturated ring compounds, and alkane side chains
and are interspersed with nitrogen, sulfur and oxygen compounds [ 151.
