"Water Flooding" or "Water Injection" is an improved oil recovery method, where water is injected at some carefully selected located parts of the hydrocarbon reservoir to improve hydrocarbon recovery either by "pressure maintenance" or by improved "sweeping" of the reservoir.
Water Flooding is carried out in a variety of "patterns" or arrangements of injector and producer wells.
- Peripheral Injection
- Updip Injection
- Downdip Injection
- Infill Injection
- 4-spot pattern
- 5-spot pattern
- Inverted 5-spot pattern
- 9-spot pattern
- Line Drive
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