Characters and Oil Field Trial of Oil-Degrading Bacterium Strain NX-2
- VernacularTitle:解烃细菌NX-2的特性及矿场试验
- Author:
Feng-Lai LIANG
;
Shou-Qiang CHENG
;
Xue-Lian SUN
;
Ru-Lin LIU
;
- Publication Type:Journal Article
- Keywords:
Oil-degrading bacterium, Oil recovery, Oil field trial
- From:
Microbiology
1992;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Based on reservoir condition and fluid characteristics, the oil-degrading bacterial strain NX-2 was screened from Ma-2 fault block of Huabei oil field. Bacterial metabolism and the capability of improving oil property were evaluated on oxygen-deficient condition. At 87℃ which reservoir temperature is, artificial homogeneous core displacement experiment indicated the enhanced oil recovery of microbe was 7.1% higher than that of waterflooding. In experiment on individual well Ma-410, additional oil production of 669 tons was gained, and decreased water production of this trial well reached more than 3000 tons. These results demonstrated NX-2 could adapt to stratum conditions, enhance oil recovery and improve oil property as well.
