Low-Abundance Dietzia Inhabiting a Water-Flooding Oil Reservoir and the Application Potential for Oil Recovery

Table 1

Relative contents of saturated hydrocarbon and aromatic hydrocarbon in crude oil before and after ZQ-4 treatment.

Experiment groups	Saturated hydrocarbon (%)	Aromatic hydrocarbon (%)
Oil degradation in aerobic condition
Control	66.24 ± 0.74	14.50 ± 0.69
3 days	55.64 ± 1.14	18.65 ± 0.53
Oil degradation in limited oxygen supply condition (Vair/Vliquid 2 : 1)
Control	65.80 ± 1.01	13.05 ± 1.01
60 days	56.96 ± 0.81	16.72 ± 0.61
Oil degradation in anaerobic condition
Control	65.39 ± 1.01	16.76 ± 1.02
60 days	64.84 ± 0.73	16.88 ± 0.26