Research Article
A New Methodology for the Multilayer Tight Oil Reservoir Water Injection Efficiency Evaluation and Real-Time Optimization
Table 3
Tracer test results of the T6 well group.
| Injector | Tracer type & inject date | Tracer well | Tracer breakthrough date | Tracer breakthrough time (day) | Tracer peak concentration (ng/ml) | Duration (day) |
| T6 | Gd 3/20/2019 | P8 | 5/9/2019 | 50 | 52.4 | 30 | P7 | 5/17/2019 | 58 | 97.01 | 26 | Sm 3/15/2019 | P8 | 4/25/2019 | 41 | 82.41 | 21 |
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