|
|
|
Formation conditions and enrichment model of retained petroleum in lacustrine shale: A case study of the Paleogene in Huanghua depression, Bohai Bay Basin, China
|
|
ZHAO Xianzheng,ZHOU Lihong,PU Xiugang,JIN Fengming,SHI Zhannan,HAN Wenzhong,JIANG Wenya,HAN Guomeng,ZHANG Wei,WANG Hu,MA Jianying
|
|
| |
Table 2 Amounts of oil adsorbed, retained and expelled by shale samples of different maturities.
|
|
Ro/
% | Corres-
ponding depth/m | Amount of
movable retained hydrocarbon/% | Amount of hydrocarbon adsorbed
by kerogen/% | Amount of hydrocarbon expelled/% | | 0.5 | 2 400 | 0 | 98.0 | 2.0 | | 0.6 | 2 700 | 19.4 | 47.8 | 32.8 | | 0.7 | 3 000 | 52.9 | 25.7 | 21.4 | | 0.8 | 3 300 | 60.0 | 18.8 | 21.2 | | 0.9 | 3 700 | 51.9 | 16.9 | 31.2 | | 1.0 | 4 000 | 40.6 | 17.9 | 41.5 | | 1.1 | 4 300 | 20.3 | 16.7 | 63.0 | | 1.2 | 4 600 | 7.4 | 14.8 | 77.8 | | 1.3 | 4 900 | 3.7 | 13.9 | 82.4 |
|
|
|