Quantitative Method for Evaluating Shale Oil Resources Based on Movable Oil Content

Table 2

Original hydrocarbon content, loss amount, and loss rate with conventional pyrolysis of closed core and wellhead cuttings.

No.	1	2	3	4	5	6	7	8	9	10	11	12
Well	G25	G25	G25	G25	G25	G25	G25	G25	G25	G25	G25	G25
Depth (m)	3365.9	3353.7	3359.3	3355.7	3351.0	3342.5	3376.4	3339.5	3347.0	3346.0	3344.5	3352.7
TOC (%)	1.02	0.67	1.71	2.28	1.84	2.98	2.40	5.66	3.25	2.06	2.46	3.84
Core (mg/g)	0.34	0.60	0.84	0.91	1.14	1.21	1.22	1.24	1.24	1.63	1.67	1.79
Cutting (mg/g)	0.30	0.38	0.57	0.68	0.95	0.68	1.08	0.92	0.87	0.92	1.27	1.03
Loss (mg/g)	0.04	0.22	0.27	0.23	0.19	0.53	0.14	0.32	0.37	0.71	0.40	0.76
Loss ratio (%)	11.8	35.9	32.6	25.2	16.0	44.1	11.3	26.0	29.8	43.6	24.1	42.3
N.O	13	14	15	16	17	18	19	20	21	22	23	Average
Well	G25	G25	G25	G25	G25	G25	G25	G25	G25	G25	G25
Depth (m)	3374.4	3367.9	3369.9	3351.6	3377.4	3375.4	3363.3	3366.9	3361.3	3356.7	3345.0
TOC (%)	4.69	1.85	3.29	7.29	2.96	3.46	3.53	4.66	6.56	5.97	5.72
Core (mg/g)	1.87	1.92	2.73	2.98	3.12	3.38	3.56	3.75	4.48	4.52	6.84	2.30
Cutting (mg/g)	1.02	0.91	2.33	2.43	1.77	2.31	2.67	3.16	3.97	2.38	4.89	1.63
Loss (mg/g)	0.85	1.01	1.40	1.55	1.35	1.07	1.89	0.59	0.51	2.14	1.95	0.67
Loss ratio (%)	45.4	52.7	14.6	18.4	43.3	31.7	24.9	15.9	11.3	47.3	28.5	29.4