Accumulation and Distribution of Natural Gas Reservoir in Volcanic Active Area: A Case Study of the Cretaceous Yingcheng Formation in the Dehui Fault Depression, Songliao Basin, NE China
Table 1
Results of Rock-Eval pyrolysis.
Depth (m)
TOC (%)
(mg/g)
(mg/g)
(°C)
(mg/g)
HI (mg HC/g TOC)
PI
2856.60
2.28
2.53
1.85
486.00
4.38
81.14
0.58
2856.65
3.24
0.63
1.57
490.00
2.20
48.46
0.29
2857.00
2.67
1.11
1.58
490.00
2.69
59.18
0.41
2857.35
2.02
0.36
1.05
489.00
1.41
51.98
0.26
2857.70
3.19
0.94
1.86
489.00
2.80
58.31
0.34
2858.20
2.43
0.65
1.31
491.00
1.96
53.91
0.33
2858.70
3.03
0.73
1.63
489.00
2.36
53.80
0.31
2859.49
1.96
0.81
2.47
488.00
3.28
126.02
0.25
2859.50
1.69
0.51
0.95
490.00
1.46
56.21
0.35
2860.00
2.06
0.54
1.06
488.00
1.60
51.46
0.34
2860.70
3.33
0.29
0.68
490.00
0.97
20.42
0.30
2861.40
0.22
0.02
0.14
482.00
0.16
63.64
0.13
2861.90
2.18
0.52
1.24
488.00
1.76
56.88
0.30
2862.20
2.12
0.33
0.96
489.00
1.29
45.28
0.26
2862.70
2.12
0.53
1.08
490.00
1.61
50.94
0.33
2863.30
2.12
0.39
1.28
488.00
1.67
60.38
0.23
2863.80
2.17
0.36
1.14
490.00
1.50
52.53
0.24
2864.00
2.13
0.23
1.18
487.00
1.41
55.40
0.16
2864.40
2.39
0.38
1.20
490.00
1.58
50.21
0.24
2864.90
1.40
0.14
0.68
489.00
0.82
48.57
0.17
2865.20
1.59
0.23
0.87
488.00
1.10
54.72
0.21
2865.70
3.10
0.61
1.77
490.00
2.38
57.10
0.26
2866.20
1.97
0.40
1.08
490.00
1.48
54.82
0.27
2866.80
1.95
0.22
1.02
488.00
1.24
52.31
0.18
2867.00
2.19
0.31
1.19
488.00
1.50
54.34
0.21
2867.20
2.00
0.39
1.00
488.00
1.39
50.00
0.28
2867.90
1.40
0.26
0.87
487.00
1.13
62.14
0.23
2868.20
1.80
0.43
0.99
488.00
1.42
55.00
0.30
2868.70
1.77
0.35
0.98
487.00
1.33
55.37
0.26
2869.40
3.18
0.46
1.80
489.00
2.26
56.60
0.20
2869.70
1.26
0.14
0.72
488.00
0.86
57.14
0.16
2870.20
1.16
0.22
0.66
489.00
0.88
56.90
0.25
2870.50
1.30
0.11
0.72
488.00
0.83
55.38
0.13
2885.50
2.74
0.68
1.53
490.00
2.21
55.84
0.31
3053.95
1.69
0.35
1.87
484.00
2.22
110.65
0.16
3056.00
0.78
0.22
0.61
494.00
0.83
78.21
0.27
3056.25
2.08
0.25
1.23
495.00
1.48
59.13
0.17
3057.55
0.85
0.24
1.09
396.00
1.33
128.24
0.18
3057.85
0.58
0.03
0.39
488.00
0.42
67.24
0.07
3059.38
0.22
0.01
0.15
488.00
0.16
68.18
0.06
3060.45
0.38
0.04
1.07
456.00
1.11
281.58
0.04
3063.14
1.13
0.08
1.50
472.00
1.58
132.74
0.05
3063.43
1.73
0.16
2.72
462.00
2.88
157.23
0.06
3065.50
0.76
0.08
1.46
443.00
1.54
192.11
0.05
3377.98
1.40
0.06
0.42
519.00
0.48
30.00
0.13
3395.94
0.61
0.04
0.47
487.00
0.51
77.05
0.08
3396.90
0.62
0.05
0.41
493.00
0.46
66.13
0.11
2306.00
1.51
2.20
1.15
458.00
3.35
76.16
0.66
2307.00
1.83
6.95
1.18
505.00
8.13
64.48
0.85
2316.00
0.34
1.90
0.34
387.00
2.24
100.00
0.85
2326.00
0.34
2.33
0.33
385.00
2.66
97.06
0.88
2820.00
0.51
1.06
0.35
485.00
1.41
68.63
0.75
2850.00
0.51
0.91
0.31
484.00
1.22
60.78
0.75
2890.00
0.43
1.93
0.36
486.00
2.29
83.72
0.84
2910.00
3.84
4.50
2.83
487.00
7.33
73.70
0.61
2920.00
3.33
3.66
2.23
486.00
5.89
66.97
0.62
2930.00
2.72
2.74
1.80
488.00
4.54
66.18
0.60
2940.00
4.24
1.19
2.64
489.00
3.83
62.26
0.31
2960.00
6.82
1.94
6.47
485.00
8.41
94.87
0.23
2980.00
5.94
1.43
5.19
485.00
6.62
87.37
0.22
3005.00
8.33
2.76
8.62
485.00
11.38
103.48
0.24
3020.00
1.64
1.29
1.23
488.00
2.52
75.00
0.51
3035.00
1.56
1.68
1.04
490.00
2.72
66.67
0.62
3217.54
1.60
0.10
0.49
513.00
0.59
30.63
0.17
3677.60
1.28
0.14
0.49
570.00
0.63
38.28
0.22
2665.00
2.50
3.35
2.76
465.00
6.11
110.40
0.55
2680.00
12.90
4.31
17.22
472.00
21.53
133.49
0.20
2685.00
3.53
2.80
3.59
473.00
6.39
101.70
0.44
2690.00
8.42
3.56
9.97
473.00
13.53
118.41
0.26
2710.00
17.78
4.25
24.81
473.00
29.06
139.54
0.15
2725.00
9.65
6.85
16.05
475.00
22.90
166.32
0.30
2880.00
2.06
1.01
1.73
483.00
2.74
83.98
0.37
2898.00
2.32
1.59
1.84
485.00
3.43
79.31
0.46
2940.00
5.51
6.42
4.99
488.00
11.41
90.56
0.56
2970.00
1.84
4.88
1.50
488.00
6.38
81.52
0.76
2990.00
1.93
5.08
1.68
492.00
6.76
87.05
0.75
3010.00
4.82
4.18
4.19
489.00
8.37
86.93
0.50
3015.00
18.85
7.79
16.80
489.00
24.59
89.12
0.32
3020.00
18.71
6.71
14.31
491.00
21.02
76.48
0.32
3060.00
3.93
12.59
3.42
493.00
16.01
87.02
0.79
3078.00
13.46
14.75
13.15
492.00
27.90
97.70
0.53
3215.00
3.82
10.34
2.26
504.00
12.60
59.16
0.82
3420.00
2.00
0.07
0.46
434.00
0.53
23.00
0.13
3830.00
7.08
9.53
8.45
483.00
17.98
119.35
0.53
2785.00
3.18
20.92
3.06
356.00
23.98
96.23
0.87
2795.00
2.88
18.55
2.72
351.00
21.27
94.44
0.87
2805.00
3.22
21.38
3.30
357.00
24.68
102.48
0.87
2815.00
3.20
17.15
3.21
360.00
20.36
100.31
0.84
2825.00
3.39
19.15
3.11
358.00
22.26
91.74
0.86
2835.00
3.56
23.33
3.40
364.00
26.73
95.51
0.87
2845.00
3.30
18.99
3.41
364.00
22.40
103.33
0.85
2855.00
3.15
16.83
3.14
363.00
19.97
99.68
0.84
2865.00
3.16
11.40
2.66
344.00
14.06
84.18
0.81
2870.00
2.78
6.64
1.63
329.00
8.27
58.63
0.80
2878.00
2.59
11.15
2.35
344.00
13.50
90.73
0.83
2885.00
3.97
14.08
3.09
493.00
17.17
77.83
0.82
2890.00
3.34
21.38
2.87
341.00
24.25
85.93
0.88
TOC: total organic carbon content; : free hydrocarbons present in the rock; : petroleum generated by pyrolysis; : genetic potential; : the temperature at peak evolution of hydrocarbons (°C); HI: hydrogen index, ; PI: production index, .
