The Oil-Bearing Strata of Permian Deposits of the Ashal’cha Oil Field Depending on the Content, Composition, and Thermal Effects of Organic Matter Oxidation in the Rocks

Table 2

Group composition of extracts from rock samples of the Permian deposits of Ashal’cha oil field (SARA analysis).

Sample no.	Depth (m)	Amount (wt%)	Group composition (wt%)				SP
			S	A	R	As.
Well 24
1	117.5-118.5	7.43	35.33	36.20	21.72	6.75	0.73
2	121.5-123.5	5.52	30.35	34.84	20.54	14.27	0.81
3	129.0-132.0	0.95	33.42	31.96	19.58	15.04	0.94
Well 9
4	141.6-148.6	2.27	39.79	25.56	14.20	20.45	1.51
5	148.1-149.7	2.63	39.97	31.34	14.17	14.52	1.20
6	152.9-154.0	1.66	41.68	33.74	12.53	12.05	1.49
Well 106
7	174.4-177.6	4.71	35.80	33.48	24.58	6.14	0.72
8	187.7-188.6	3.30	44.74	32.73	19.72	2.81	0.91
Well 107
9	176.5-178.0	6.96	37.86	39.95	15.98	6.21	0.79
10	181.0-182.7	3.35	37.48	36.73	17.49	8.30	0.84
11	185.0-187.0	3.38	39.21	32.03	19.61	9.15	0.94

S: saturated hydrocarbons; A: aromatic hydrocarbons; R: resins; Аs.: asphaltenes. [35].