Research Article
Experimental Study on Blockage Mechanism and Blockage Locations for Polymer-Flooded Reservoirs in the Henan Oilfield
Table 1
Data of the cores selected for the study.
| | Cored block | Core no. | Length (cm) | Diameter (cm) | Porosity | Permeability (mD) | Total pore volume (cm3) |
| | VII Upper | 7-145-7 | 7.40 | 2.5 | 0.18 | 7.46 | 36.33 | | VII Upper | 7-145-21 | 9.32 | 2.5 | 0.22 | 450.25 | 45.75 | | VII Upper | 7-145-22 | 8.00 | 2.5 | 0.21 | 91.81 | 39.25 | | Shuanghe North | 431-3 | 8.64 | 2.5 | 0.18 | 355.77 | 42.36 | | Shuanghe North | 431-6 | 5.71 | 2.5 | 0.16 | 292.59 | 28.01 |
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