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Breakthrough of shallow shale gas exploration in Taiyang anticline area and its significance for resource development in Zhaotong, Yunnan Province, China
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LIANG Xing,XU Zhengyu,ZHANG Zhao,WANG Weixu,ZHANG Jiehui,LU Huili,ZHANG Lei,ZOU Chen,WANG Gaocheng,MEI Jue,RUI Yun
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Table 1 Statistics on fracturing test results of shallow shale gas in Taiyang anticline area.
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| Well type | Well name | Tested layer | Depth (Measured depth)/m | Tested production/
(104 m3•d-1) | Horizontal length/m | Allocated production/(104 m3•d-1) | Cumulative gas production/104 m3 | Pressure coefficient | | Vertical | Y1 | Wufeng Fm.-Longmaxi Fm. | 976.2-986.0 | 0.39 | | 0.35 | 56.4 | 1.22 | | Y102 | Longmaxi Fm. | 768.5-778.8 | 1.12 | | 0.80 | 46.1 | 1.43 | | Y103 | Wufeng Fm.-Longmaxi Fm. | 1 074.0-1 088.0 | 0.80 | | 0.50 | 22.3 | 1.25 | | Y105 | Longmaxi Fm. | 1 685.0-1 693.8 | 2.06 | 1 121 | 1.70 | 108.4 | 1.29 | | Horizontal | Y102H1-1 | Wufeng Fm.-Longmaxi Fm. | 963.0-1 695.0 | 6.25 | 745 | 2.67 | 356.5 | | | Y102H1-4 | 1 135.0-2 045.0 | 6.90 | 910 | 3.60 | | | | Y102H1-5 | 1 006.0-1 906.0 | 4.10 | 900 | 3.50 | | | | Y104H1-4 | Wufeng Fm.-Longmaxi Fm. | 1 253.0-1 509.0 | 14.10 | 1 013 | | | | | Y107H1-2 | Wufeng Fm.-Longmaxi Fm. | 1193.7-1 120.4 | 11.42 | 689 | | | | | Y102H7-1 | Wufeng Fm.-Longmaxi Fm. | 1 790.0-2 772.0 | 15.12 | 982 | | | | | Y102H7-3 | 1 380.0-2 361.0 | 14.34 | 981 | | | | | Y105H1-2 | Longmaxi Fm. | 1 798.0-2 040.0 | 5.30 | 1 121 | 3.90 | | | | Y108H1-1 | Longmaxi Fm. | 1 667.9-1 833.7 | 6.88 | 1 225 | 2.80 | | |
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