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Technical strategies for effective development and gas recovery enhancement of a large tight gas field: A case study of Sulige gas field, Ordos Basin, NW China
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JI Guang,JIA Ailin,MENG Dewei,GUO Zhi,WANG Guoting,CHENG Lihua,ZHAO Xin
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Table 4 Comparison of simulated indexes of the combined well pattern and the infilled well pattern.
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| Simulated plan | Number of vertical wells/well | Average vertical well
cumulative output/104 m3 | Number of horizontal wells/well | Average horizontal well
cumulative output/104 m3 | Recovery/
% | Investment/
108CNY | | Basic well pattern | 300 | 2 306 | 0 | 0 | 31.94 | 24.57 | | Infilled well pattern | 600 | 1 801 | 0 | 0 | 49.89 | 49.14 | | Combined well pattern | 432 | 1 771 | 42 | 7 932 | 50.70 | 45.61 |
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