Reservoir Evaluation and Development ›› 2020, Vol. 10 ›› Issue (1): 37-42.doi: 10.13809/j.cnki.cn32-1825/te.2020.01.006
• Method and Theory • Previous Articles Next Articles
LONG Zhangliang1,WEN Zhentao2,LI Hui3,ZENG Xianwei4
Received:
2019-03-18
Online:
2020-02-26
Published:
2020-02-04
CLC Number:
LONG Zhangliang,WEN Zhentao,LI Hui,ZENG Xianwei. An evaluation method of shale reservoir crushability based on grey correlation analysis[J].Reservoir Evaluation and Development, 2020, 10(1): 37-42.
Table 1
Grey correlation classification of 35 geological and engineering parameters in YC Block"
基础地质参数 | 工程地质参数 | 工程参数 | 目标参数 |
---|---|---|---|
优质页岩埋深 ①—⑥优质页岩厚度 2—31优质储层厚度 五峰组厚度 观音桥段厚度 岩心裂缝条数 孔隙度 有机碳含量 含气量 脆性矿物含量 黏土含量 | 相对方位角 地层压力 弹性模量 泊松比 抗压强度 抗张强度 脆性指数 I型断裂韧性 II型断裂韧性 水平应力差 应力差异系数 | 水平段长 优质储层钻遇长度 I号峰钻遇长度 2—31优质储层钻遇长度 五峰组钻遇长度 临湘+宝塔组钻遇长度 分段 分簇 返排率 入地液量 入地砂量 施工排量 施工压力 | 无阻流量 |
Table 3
Correlation degree and weight distribution of test unobstructed flow and main sensitive parameters in YC Block"
影响参数 | YY7 | YY6 | YY2 | YY3-1 | YY1 | 关联顺序 | 平均关联度 |
---|---|---|---|---|---|---|---|
2—31优质储层钻遇长度/m | 373.5 | 194.0 | 158.0 | 79.9 | 688.0 | 1 | 0.068 2 |
2— 31优质储层厚度/m | 5.93 | 4.40 | 4.62 | 4.22 | 6.22 | 2 | 0.064 3 |
弹性模量 | 26.53 | 25.18 | 22.67 | 20.80 | 31.6 | 3 | 0.058 6 |
五峰组钻遇长度/m | 208.5 | 37 | 0 | 0 | 206 | 4 | 0.051 7 |
分段 | 17 | 16 | 21 | 21 | 23 | 5 | 0.051 1 |
分簇 | 44 | 41 | 55 | 59 | 62 | 6 | 0.049 2 |
返排率 | 26.20 | 36.12 | 27.50 | 16.89 | 14.01 | 7 | 0.046 5 |
五峰组厚度/m | 6.9 | 7.3 | 6.5 | 7.0 | 7.5 | 8 | 0.045 3 |
II型断裂韧性 | 0.791 | 0.741 | 0.659 | 0.814 | 0.654 | 9 | 0.041 6 |
孔隙度×优质页岩厚度×含气量 | 24.75 | 15.95 | 14.16 | 19.65 | 20.95 | 10 | 0.038 1 |
泊松比 | 0.265 | 0.270 | 0.223 | 0.220 | 0.223 | 11 | 0.037 4 |
力学脆性指数 | 0.441 | 0.482 | 0.527 | 0.480 | 0.480 | 12 | 0.035 9 |
Table 5
Drilling data statistics of YY1 well platform"
井号 | 中深/ m | 计算无阻流量/ (104 m3·d-1) | 水平段长/ m | I号峰 之上 | I号峰 | Ⅱ上半幅—Ⅲ下半幅 | 五峰组 | 临湘组 | IA类储层 钻遇率/% |
---|---|---|---|---|---|---|---|---|---|
YY1-2HF | 3 936 | 23.30 | 1 560 | 242 | 1 121 | 172 | 25 | 72.0 | |
YY1-4HF | 3 847 | 26.45 | 1 503 | 74 | 11 | 1 160 | 258 | 77.0 | |
YY1HF | 3 941 | 19.00 | 1 502 | 53 | 555 | 688 | 206 | 45.8 | |
YY1-1HF | 3 997 | 14.85 | 1 483 | 230 | 191 | 801 | 254 | 7 | 54.0 |
YY1-3HF | 3 791 | 8.50 | 1 238 | 588 | 650 | 47.5 |
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