西安石油大学学报（自然科学版）2025，Vol.40Issue(3)：82-88,7.DOI:10.3969/j.issn.1673-064X.2025.03.009
贝莱斯芽孢杆菌H1提高高矿化度油藏采收率的潜力
Potential of Bacillus Velezensis H1 in Enhancing Oil Recovery of High-Salinity Reservoirs
摘要
Abstract
The environmental adaptability and oil displacement performance of the separated source Bacillus velezensis H1 were tested in laboratory and comprehensively evaluated,and its oil displacement mechanism was discussed.The results indicate that H1 can grow and reproduce under the conditions of a mineralization level of 120 000 mg/L,pH of 6～9,temperature of 15～45 ℃ and hypoxia.The surface tension of the supernatant of H1 is 28.20 mN/m,the E24 value is 91.55％,the wax prevention rate is 88.90％,and the viscosi-ty reduction rate is above 90.00％.After treating crude oil with it,the relative mass fractions of saturated hydrocarbons C10—C20 and C21—C30 increased by 7.26％ and decreased by 5.74％,respectively.The relative mass fraction of aromatic hydrocarbons and colloids decreased by 2.35％ and 2.73％,respectively.Under hypoxic conditions,gas was produced that was about 7 times the volume of the culture medium.The simulation oil displacement experiment indicates that the addition of H1 increases the recovery rate of crude oil by more than 20.00％.H1 has good salt resistance,emulsification viscosity reduction,and hydrocarbon degradation ability,and has practi-cal application value to high salinity oil reservoirs.关键词
微生物驱油/贝莱斯芽孢杆菌/乳化降黏/烃转化/物模驱油实验Key words
microbial oil recovery/Bacillus velezensis/emulsification and viscosity reduction/hydrocarbon conversion/physical simula-tion oil displacement test分类
石油、天然气工程引用本文复制引用
韩春春,杨建轩,魏晓霞,马元博,孙培耀,马莎莎,周晓蓉,陈显轲..贝莱斯芽孢杆菌H1提高高矿化度油藏采收率的潜力[J].西安石油大学学报（自然科学版）,2025,40(3):82-88,7.基金项目
青海省科技计划"石油生态开采中智能合成生物体系的构建及应用工艺"(2022-QY-202) （2022-QY-202）
"青海油田微生物采油技术推广应用"(2022T01) （2022T01）
