Research Article
Numerical Simulation of Time-Varying Characteristics in a High-Permeability Sandstone Reservoir: A Case of Gaoqian Southern Area
Table 2
Clay mineral contents in well GJ514-5.
| | Thin layer | Well section (m) | Number of blocks | Absolute content of clay minerals (%) | Relative content of clay minerals (%) | | Scope | Mean value | S | I/S | I | K | C | R | %S |
| | 12 | 1853.00~1892.21 | 7 | 3.9~30 | 17.6 | 55.3 | | 11.0 | 23.9 | 9.9 | Ro | 70.0 | | 132 | 1869.20~1892.21 | 37 | 1.6~46 | 8.1 | 42.9 | | 9.6 | 31.1 | 13.8 | Ro | 78.6 | | 133 | 1890.10~1922.12 | 11 | 7~26.4 | 12.6 | 67.0 | 30.5 | 7.5 | 25.5 | 6.5 | Ro | 60.0 | | Average | 1853.00~1922.12 | 55 | 1.6~46 | 10.2 | 49.3 | 30.5 | 9.4 | 29.1 | 11.8 | Ro | 73.8 |
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S: montmorillonite; I/S: illite-smectite mixed layers; K: kaolinite; I: illite; C: chlorite; R: degree of order; Ro: disorder; %S: mixed layer ratio.
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