Experimental Study on Hydraulic Fracturing of Laminated Sandstone Combined with Industrial CT and L-NMR
Table 4
Comparison of peak area proportion before and after hydraulic fracturing.
No.
N1 (%)
N2 (%)
N3 (%)
B.H.F.
A.H.F.
B.H.F.
A.H.F.
B.H.F.
A.H.F.
1-1
89.046
72.954
0.819
10.428
12.330
1.182
0.526
14.716
27.977
1-2
83.921
81.669
0.973
16.074
17.679
1.100
0.005
0.652
130.400
1-3
92.639
89.512
0.966
6.260
7.332
1.171
1.101
3.156
2.866
1-4
90.332
79.538
0.881
8.619
8.419
0.977
1.049
12.043
11.480
1-5
90.972
85.716
0.942
8.869
13.806
1.557
0.159
0.478
3.006
1-6
88.875
75.004
0.844
10.121
11.636
1.150
1.004
13.360
13.307
1-7
87.527
82.116
0.938
11.916
11.978
1.005
0.557
5.906
10.603
1-8
87.762
74.509
0.849
11.764
11.112
0.945
0.474
14.379
30.335
1-9
89.342
69.106
0.773
8.137
14.857
1.826
2.521
16.037
6.361
1-10
90.024
80.404
0.893
8.268
8.418
1.018
1.708
11.178
6.544
Note: N1, N2, and N3 represent the proportion of the left peak, middle peak, and right peak integral area to the corresponding total area, respectively. ,, and represent the ratio of the peak area proportion after hydraulic fracturing to the peak area proportion before hydraulic fracturing, respectively.
