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Optimization of refracturing timing for horizontal wells in tight oil reservoirs: A case study of Cretaceous Qingshankou Formation, Songliao Basin, NE China
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Jianchun GUO,Liang TAO,Fanhui ZENG
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Table 5 Comparison of cumulative oil production increment with different refracturing timings.
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| Refracturing timing | Initial daily oil
production/tons | Cumulative oil production increment/104 tons | Cumulative oil production increment percentage/% | | 2nd year | 32.3 | 1.069 | 59.6 | | 3rd year | 31.5 | 1.231 | 68.6 | | 4th year | 26.5 | 0.798 | 44.5 | | 5th year | 22.8 | 0.469 | 26.7 |
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