Table 3 Optimized timings for SWF calculated by cumulative net profit.

From: Research on the timing for subsequent water flooding in Alkali-Surfactant-Polymer flooding in Daqing Oilfield based on automated machine learning

Oil price($/bbl)

Enhanced oil recovery 15%

Enhanced oil recovery 18%

Enhanced oil recovery 21%

Injection volume(PV)

Water cut

(%)

Injection volume(PV)

Water cut

(%)

Injection volume(PV)

Water cut

(%)

45

0.685

91.61

0.750

91.47

0.820

91.58

55

0.855

94.8

0.925

94.76

0.995

94.76

65

0.965

96.23

1.030

96.18

1.105

96.21

75

1.045

97.02

1.115

97.03

1.190

97.04

85

1.120

97.55

1.190

97.56

1.265

97.56

  1. Notes: Table 3 shows the situation where the controlled reserve of a single well is 30,000 tons.
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