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Prestack inversion identification of organic reef gas reservoirs of Permian Changxing Formation in Damaoping area, Sichuan Basin, SW China
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ZHOU Lu,ZHONG Feiyan,YAN Jiachen,ZHONG Kexiu,WU Yong,XU Xihui,LU Peng,ZHANG Wenji,LIU Yi
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Table 3 AVO types and gas-testing data of Changxing Formation reef reservoirs in typical wells of the study area.
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| Well name | AVO type | Poro-
sity/% | Gas
satura-
tion/% | Daily gas
production/
(104 m3•d-1) | Daily water
production/
(m3•d-1) | | Yun’an 6 | Type Ⅳ | 9 | 92 | 82 | - | | Yun’an X7 | Type Ⅳ | 11 | 90 | 127.1 | - | | Yun’an X8 | Type Ⅲ | 6 | 90 | 85.49 | - | | Yun’an X9 | Type Ⅳ | 5 | 10 | 2.45 | 10.08 |
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