Influence of Hydrothermal and Pyrolysis Processes on the Transformation of Organic Matter of Dense Low-Permeability Rocks from Domanic Formations of the Romashkino Oil Field
Table 2
SARA analysis of the Bitumoids before and after Experiments.
Object
Amount (wt %)
Group composition (wt %)
S
A
R
As.
Carbene-carboides
(1) Berezovskaya area Semiluki-Mendym (Domanic) sediments, depth 1712.5–1718 m
Initial sample
0.25
18.58
38.94
28.32
14.16
—
After thermal treatment
4.56
35.69
23.45
24.48
12.07
4.31
(2) Zelenogorskaya area Dankov-Lebedyan (carbonate) deposits, depth 1379–1385.5 m
Initial sample
0.63
39.69
26.72
17.56
16.03
—
After thermal treatment
0.97
56.38
13.83
14.63
9.04
6.12
S = saturated hydrocarbons; A = aromatic hydrocarbons; R = resins; Аs. = asphaltenes.
