致密砂岩储层脆性测井评价方法研究及应用——以鄂尔多斯盆地渭北油田为例
朱颜, 韩向义, 岳欣欣, 杨春峰, 常文鑫, 邢丽娟, 廖晶

Research and application of brittleness logging evaluation method to tight sandstone reservoirs:Exemplified by Weibei oilfield in Ordos Basin
ZHU Yan, HAN Xiang-Yi, YUE Xin-Xin, YANG Chun-Feng, CHANG Wen-Xin, XING Li-Juan, LIAO Jing
表1 WB48井延长组全岩矿物X衍射数据
Table 1 X-ray diffraction data of the whole rock in the Yanchang Formation of WB48 well
深度/m 层位 黏土类
矿物/%		 石英/% 长石(钾
长石+钠长
石)/%		 碳酸盐类矿物
(方解石+
白云石)/%
498.02
499.65
501.01
502.42
503.35
522.91
524.86
526.16
528.08
530.38
533.66
538.8
807.28
809.05
810.5
811.66
812.74
813.7
815.45
817.17
827.28
828.73
830.76
831.9
833.44		 C3
C3
C3
C3
C3
C3
C3
C3
C3
C3
C3
C3
C6
C6
C6
C6
C6
C6
C6
C6
C7
C7
C7
C7
C7		 11
9
6
9
10
12
12
11
8
8
7
9
16
17
13
15
10
10
17
14
15
22
13
13
17		 49
52
33
46
55
52
47
49
44
50
44
40
47
43
49
44
40
48
44
49
44
37
44
26
40		 30
30
42
41
30
29
30
33
40
32
44
48
26
30
32
32
28
31
29
26
32
28
34
36
32		 10
9
19
4
5
7
11
7
8
10
5
3
11
10
6
9
22
11
10
11
9
13
9
25
11