Table 4 Normal alkane, isoprenoids, and related parameters of Da’anzhai shale.
Submember | Depth (m) | TOC (%) | CPI | OEP | Main peak carbon | Pr/Ph |
|---|---|---|---|---|---|---|
Upper | 2874.70 | 0.10 | 1.07 | 0.94 | nC23 | 1.25 |
2880.69 | 0.52 | 1.08 | 1.00 | nC19 | 1.26 | |
2889.67 | 2.10 | 1.06 | 0.97 | nC19 | 1.33 | |
2890.87 | 1.08 | 1.11 | 1.28 | nC14 | 1.39 | |
2896.49 | 0.68 | 1.11 | 1.00 | nC17 | 1.14 | |
2899.07 | 1.09 | 1.11 | 0.99 | nC20 | 1.08 | |
2902.47 | 2.88 | 1.07 | 0.99 | nC23 | 0.92 | |
Middle | 2904.31 | 2.46 | 1.08 | 0.98 | nC23 | 0.94 |
2906.87 | 2.19 | 1.08 | 0.98 | nC23 | 0.91 | |
2909.06 | 0.75 | 1.08 | 0.99 | nC23 | 0.91 | |
2909.80 | 2.23 | 1.08 | 0.97 | nC21 | 1.17 | |
2912.85 | 0.46 | 1.10 | 0.99 | nC23 | 1.03 | |
2913.56 | 2.00 | 1.09 | 0.98 | nC22 | 0.90 | |
2915.12 | 1.92 | 1.09 | 1.00 | nC23 | 0.96 | |
2915.86 | 1.23 | 1.07 | 0.99 | nC21 | 0.93 | |
2916.72 | 1.07 | 1.08 | 1.00 | nC23 | 0.88 | |
2917.91 | 1.48 | 1.10 | 0.98 | nC21 | 1.03 | |
2920.25 | 2.69 | 1.10 | 1.01 | nC23 | 0.98 | |
2922.68 | 2.36 | 1.08 | 0.99 | nC23 | 1.22 | |
2923.89 | 1.40 | 1.10 | 0.98 | nC25 | 0.99 | |
2924.91 | 1.97 | 1.09 | 0.99 | nC23 | 1.07 | |
2925.93 | 1.38 | 1.11 | 0.96 | nC20 | 1.08 | |
2928.28 | 1.46 | 0.95 | 0.99 | nC17 | 1.22 | |
2930.08 | 3.63 | 1.09 | 0.99 | nC23 | 1.07 | |
2932.11 | 1.19 | 1.10 | 0.99 | nC23 | 1.24 | |
2934.81 | 2.10 | 1.08 | 0.93 | nC17 | 1.18 | |
2936.05 | 3.54 | 1.08 | 1.01 | nC23 | 1.02 | |
2938.35 | 3.36 | 1.11 | 1.01 | nC23 | 1.14 | |
2939.36 | 1.79 | 1.06 | 0.99 | nC23 | 1.11 | |
2942.44 | 0.94 | 1.10 | 1.02 | nC17 | 1.30 | |
2943.32 | 1.94 | 1.05 | 1.00 | nC23 | 1.10 | |
2944.67 | 2.19 | 1.07 | 0.99 | nC21 | 1.15 | |
2945.65 | 0.85 | 1.10 | 0.99 | nC20 | 1.20 | |
Lower | 2950.53 | 0.14 | 1.12 | 1.01 | nC23 | 1.18 |
2953.48 | 0.49 | 1.08 | 1.27 | nC16 | 1.06 | |
2958.21 | 0.53 | 1.11 | 0.99 | nC19 | 0.82 |
