Reservoir Evaluation and Development ›› 2018, Vol. 8 ›› Issue (2): 80-84.
• Non-conventional Reservoir • Previous Articles
Cao Huaqing,Gao Changbin
Received:
2017-04-06
Online:
2018-04-30
Published:
2018-04-30
CLC Number:
Cao Huaqing,Gao Changbin. Shale coring technology in Longmaxi formation and Niutitang formation of unconventional shale gas field[J].Reservoir Evaluation and Development, 2018, 8(2): 80-84.
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Table 1
Well log interpretation of well Youye-1 in Niutitang formation"
层号 | 顶深/ m | 底深/ m | 厚度/ m | 常规测井 | ECS测井 | ELAN成果 | 总气含量/(m3·t-1) (地层压力系数=1.1) | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
自然伽马/ API | 深电阻率/ (Ω·m) | 密度/ (g·cm-3) | 中子, % | 硅质含量, % | 黏土含量, % | 碳酸盐含量, % | 黄铁矿含量, % | 有效孔隙度,% | TOC,% | |||||||||||||||
最大 | 最小 | 均值 | 最大 | 最小 | 均值 | 最大 | 最小 | 均值 | ||||||||||||||||
1 | 3 798.0 | 3 805.4 | 7.4 | 177.0 | 0.4 | 2.7 | 11.8 | 47.3 | 25.9 | 22.6 | 3.3 | 3.0 | 0.5 | 1.7 | 6.8 | 2.3 | 5.6 | 0.59 | 0.20 | 0.49 | ||||
2 | 3 805.4 | 3 813.2 | 7.8 | 269 | 0.5 | 2.7 | 13.1 | 57.8 | 25.1 | 10.3 | 5.4 | 2.8 | 0.6 | 1.3 | 5.0 | 2.7 | 4.1 | 0.44 | 0.23 | 0.36 | ||||
3 | 3 813.2 | 3 839.8 | 26.6 | 550.0 | 0.2 | 2.6 | 13.1 | 64.6 | 19.3 | 10.3 | 5.2 | 3.1 | 0.6 | 2.0 | 10.5 | 4.8 | 7.9 | 0.91 | 0.42 | 0.69 | ||||
4 | 3 839.8 | 3 845.0 | 5.2 | 484.0 | 0.8 | 2.7 | 9.9 | 49.4 | 23.8 | 20.6 | 3.1 | 2.6 | 0.2 | 1.4 | 7.5 | 2.3 | 4.7 | 0.65 | 0.20 | 0.41 | ||||
5 | 3 871.0 | 3 880.7 | 9.7 | 187.0 | 3.8 | 2.7 | 8.6 | 57.5 | 12.3 | 24.6 | 4.8 | 2.2 | 0.4 | 1.0 | 5.1 | 1.0 | 2.7 | 0.44 | 0.10 | 0.24 |
Table 3
Field application of shale formation coring"
井号 | 取心段/m | 进尺/m | 心长/m | 收获率,% | 机械钻速/(m·h-1) | 备注/目的层 |
---|---|---|---|---|---|---|
保页2井 酉页1井 隆页1井 鄂阳页1井 焦页87-3HF | 2 845.76 ~ 3 177.66 3 668.67 ~ 3 869.24 2 762.74 ~ 2 847.81 3 013.00 ~ 3 166.00 3 635.00 ~ 3 653.00 | 321.90 139.95 85.07 153.00 18.00 | 316.85 139.95 85.07 152.80 18.00 | 98.43 100 100 99.8 100 | 2.70 2.92 4.20 5.80 9.00 | 连续取心/牛蹄塘 不连续取心/龙马溪 连续取心/龙马溪 连续取心/牛蹄塘 最高机械钻速/龙马溪 |
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