scholarly journals Microbial Enhanced Oil Recovery by Bacillus Subtilis Strains under Simulated Reservoir Conditions

2012 ◽  
Author(s):  
Eduardo J. Gudina ◽  
Ligia R. Rodrigues ◽  
J. Couto Teixeira ◽  
Jorge F. Brando Pereira ◽  
Laura Palma Soares
Keyword(s):  
Bacillus Subtilis ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Microbial Enhanced Oil Recovery ◽  
Reservoir Conditions

Self-gasified biosystems for enhanced oil recovery

2021 ◽  
pp. 2150274
Author(s):  
B. A. Suleimanov ◽  
S. J. Rzayeva ◽  
U. T. Akhmedova
Keyword(s):  
Carbon Dioxide ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Experimental Studies ◽  
Microbial Enhanced Oil Recovery ◽  
Heterogeneous Porous Medium ◽  
Oil Displacement ◽  
Subcritical Region ◽  
Reservoir Conditions

Microbial enhanced oil recovery is considered to be one of the most promising methods of stimulating formation, contributing to a higher level of oil production from long-term fields. The injection of bioreagents into a reservoir results in the creation of oil-displacing agents along with a significant amount of gases, mainly carbon dioxide. Earlier, the authors failed to study the preparation of self-gasified biosystems and the implementation of the subcritical region (SR) under reservoir conditions. Gasified systems in the subcritical phase have better oil-displacing properties than nongasified systems. In a heterogeneous porous medium, the filtration profile of gasified liquids in the SR should be more uniform than for a degassed liquid. Based on experimental studies, the superior efficiency of oil displacement by gasified biosystems compared with degassed ones has been demonstrated. The possibility of efficient use of gasified hybrid biopolymer systems has been shown.

Application of Bacillus subtilis strain for microbial-enhanced oil recovery

2019 ◽  
Vol 16 (7) ◽  
pp. 530-539 ◽  
Author(s):  
Haiyan Xu ◽  
Huanjiang Wang ◽  
Weihong Jia ◽  
Sili Ren ◽  
Jinqing Wang
Keyword(s):  
Bacillus Subtilis ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Subtilis Strain ◽  
Microbial Enhanced Oil Recovery

scholarly journals Optimization and characterization of biosurfactant production by Bacillus subtilis isolates towards microbial enhanced oil recovery applications

Fuel ◽  
2013 ◽  
Vol 111 ◽  
pp. 259-268 ◽  
Author(s):  
Jorge F.B. Pereira ◽  
Eduardo J. Gudiña ◽  
Rita Costa ◽  
Rui Vitorino ◽  
José A. Teixeira ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Biosurfactant Production ◽  
Microbial Enhanced Oil Recovery

scholarly journals Development of Coupled Biokinetic and Thermal Model to Optimize Cold-Water Microbial Enhanced Oil Recovery (MEOR) in Homogenous Reservoir

2019 ◽  
Vol 11 (6) ◽  
pp. 1652 ◽  
Author(s):  
Eunji Hong ◽  
Moon Jeong ◽  
Tae Kim ◽  
Ji Lee ◽  
Jin Cho ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Interfacial Tension ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Thermal Model ◽  
Cold Water ◽  
Injection Rate ◽  
Experimental Results ◽  
Microbial Enhanced Oil Recovery ◽  
Optimal Injection

By incorporating a temperature-dependent biokinetic and thermal model, the novel method, cold-water microbial enhanced oil recovery (MEOR), was developed under nonisothermal conditions. The suggested model characterized the growth for Bacillus subtilis (microbe) and Surfactin (biosurfactant) that were calibrated and confirmed against the experimental results. Several biokinetic parameters were obtained within approximately a 2% error using the cardinal temperature model and experimental results. According to the obtained parameters, the examination was conducted with several injection scenarios for a high-temperature reservoir of 71 °C. The results proposed the influences of injection factors including nutrient concentration, rate, and temperature. Higher nutrient concentrations resulted in decreased interfacial tension by producing Surfactin. On the other hand, injection rate and temperature changed growth condition for Bacillus subtilis. An optimal value of injection rate suggested that it affected not only heat transfer but also nutrient residence time. Injection temperature led to optimum reservoir condition for Surfactin production, thereby reducing interfacial tension. Through the optimization process, the determined optimal injection design improved oil recovery up to 53% which is 8% higher than waterflooding. The proposed optimal injection design was an injection sucrose concentration of 100 g/L, a rate of 7 m3/d, and a temperature of 19 °C.

scholarly journals APLIKASI BIOSURFAKTAN Bacillus subtilis ATCC 19659 DENGAN MEDIA PRODUKSI LIMBAH TAHU UNTUK ENHACED OIL RECOVERY

2021 ◽  
Vol 9 (2) ◽  
pp. 101
Author(s):  
Rizqy Fachria
Keyword(s):  
Surface Tension ◽  
Bacillus Subtilis ◽  
Crude Oil ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Liquid Waste ◽  
Nutrient Broth ◽  
Microbial Enhanced Oil Recovery ◽  
Subtilis Atcc ◽  
Bacillus Subtilis Atcc

Biosurfactant as secondary metabolit produced by Bacillus subtilis. It has the ability to emulsify and reduce the surface tension. Biosurfactants produced by B. subtilis is a lipopeptide. Furthermore, biosurfactant can be utilized in microbial enhanced oil recovery (MEOR). In this research, biosurfactant of B. subtilis ATCC 19 659 were evaluated. The production use Nutrient Broth (NB) and soybean liquid waste. Application of biosurfactant in oil recovery showed that biosurfactant of NB recover 2 mL crude oil and biosurfactant of soybean liquid waste medium recover 3.67 mL.

Microbial enhanced oil recovery potential of surfactin-producing Bacillus subtilis AB2.0

Fuel ◽  
2020 ◽  
Vol 272 ◽  
pp. 117730 ◽  
Author(s):  
Vanessa Marques Alvarez ◽  
Carolina Reis Guimarães ◽  
Diogo Jurelevicius ◽  
Livia Vieira Araujo de Castilho ◽  
Joab Sampaio de Sousa ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Microbial Enhanced Oil Recovery ◽  
Recovery Potential
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