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A differential wide field electromagnetic method and its application in alkaline-surfactant-polymer (ASP) flooding monitoring
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LI Diquan,HE Jishan
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Table 2. Data collection time.
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| Data collection times | Date | Time interval from the first collection/d | Time interval between two adjacent collections/d | | First | 2015-11-20 | | | | Second | 2015-12-05 | 15 | 15 | | Third | 2016-05-15 | 177 | 162 | | Fourth | 2016-05-29 | 191 | 14 |
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