|
|
|
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 3 Geological characteristics and production status of shale oil in the Cangdong Sag and Qikou Sag.
|
|
| Well name | Geological characteristics | Fractured zone parameters | Production parameters | | Model | Length of horizontal section/m | Vertical
depth/m | Ro/% | TOC/% | OSI/
(mg?g-1) | Brittleness
index/% | Clay
content/% | Length of fracturing section /m | Fracturing section number/
cluster number | Total fracturing fluid volume/m3 | Total sand
volume/m3 | Choke size/
mm | Initial daily oil production/m3 | Stable daily oil production/ m3 | Cumulative oil production/m3 | Cumulative liquid production/m3 | Flowback
rate/% | | GD1701H | M2 | 1 474.0 | 3 788.2-
3 850.8 | 0.90 | 3.48 | 132.0 | 48.2 | 6.4 | 941.3 | 16/54 | 34 288.0 | 1 388.00 | 12 | 75.90 | 10-20 | 8 576.0 | 14 693.5 | 42.85 | | GD1702H | M2/M3 | 1 342.7 | 3 722.4-
3 778.5 | 0.88 | 2.70 | 145.0 | 45.2 | 9.7 | 1 283.4 | 21/66 | 41 099.0 | 1 343.00 | 12 | 61.00 | 14-24 | 11 603.0 | 14 591.9 | 35.50 | | GY2-1-1H | M2 | 590.0 | 3 714-
3 722.5 | 0.87 | 3.24 | 209.7 | | | 590.0 | 9/46 | 14 476.6 | 894.38 | 4 | 24.56 | 10-20 | 2 449.0 | 1 433.9 | 9.63 | | GY2-1-2H | M2 | 584.0 | 3 701.9-
3 710.0 | 0.87 | 2.53 | 213.1 | | | 584.0 | 12/67 | 22 171.1 | 1 347.06 | 4 | 17.83 | 14-25 | 2 832.0 | 2 495.9 | 11.07 | | GY2-1-3H | M2 | 637.0 | 3 711.5-
3 720.4 | 0.87 | 3.71 | 188.7 | | | 637.0 | 13/67 | 18 926.6 | 1 030.93 | 5 | 23.37 | 12-25 | 2 108.0 | 2 062.9 | 10.76 | | F38X1 | M2/M3 | 248.0 | 3 907.8-
4 220.1 | 1.08 | 1.54 | 109.0 | 38.2 | 23.3 | 248.0 | 3 | 3 558.34 | 135.76 | 6 | 50.10 | 2-4 | 762.7 | 2 090.3 | 58.70 |
|
|
|