|
|
|
A smart productivity evaluation method for shale gas wells based on 3D fractal fracture network model
|
|
WEI Yunsheng,WANG Junlei,YU Wei,QI Yadong,MIAO Jijun,YUAN He,LIU Chuxi
|
|
| |
Table 6 Value limits of formation/fracture parameters.
|
|
| Matched parameter | Matrix permeability/
10-3 μm2 | Rock compressibility
coefficient/
MPa-1 | Fracture permeability decline coefficient/
MPa-1 | Effective fracture
height/m | Fracture half length/m | Fracture conductivity/
(10-3 μm2•m) | Water saturation of
fracture/% | Porosity
/% | Gas phase index of relative permea-
bility curve | Water phase endpoint value of relative permeability curve/% | Water phase index of relative permeability curve | Cluster efficiency/% | Conductivity
of natural fracture/
(10-3 μm2•m) | | Min. | 1×10-5 | 1×10-4 | 0.010 | 5 | 50 | 0.01 | 60 | 5 | 1 | 50 | 1 | 60 | 0.3 | | Max. | 1×10-3 | 1×10-3 | 0.052 | 20 | 200 | 102.00 | 90 | 9 | 4 | 100 | 4 | 90 | 3.0 |
|
|
|