Effects of indigenous microbial consortia for enhanced oil recovery in a fragmented calcite rocks system

I. Gaytán, M. A. Mejía, R. Hernández-Gama, L. G. Torres, C. A. Escalante, Ana Muñoz-Colunga

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)

Abstract

© 2015 Elsevier B.V. Two indigenous bacterial consortia, IMP-100 and IMP-200, proved to have a functional effect on heavy crude oil recovery, indicating a potential implementation in Microbial Enhanced Oil Recovery (MEOR). Growth kinetics of the indigenous bacterial population was performed under anaerobic conditions at 70°C and 33gL-1 of salinity. It was found that both extremophile consortia were able to grow under the latter conditions. Moreover, they synthesized metabolites that altered the surface properties of the supernatants derived from cell cultures, a useful property in oil recovery processes. Ex situ fermentations in the presence of crude oil-impregnated calcite rocks demonstrated that both bacterial consortia enhance crude oil recovery by 8.5% and 13%. In order to identify possible phenomena responsible for incremental oil recovery, emulsification index (E24), surface tension, cell adhesion to hydrocarbons, and crude oil viscosity were characterized. The results demonstrate that IMP-(100, 200) consortia were able to recover heavy crude oil from calcite rocks, possibly due to a decrease in crude oil viscosity, induced by the presence of metabolites and/or the interaction between bacteria and oil hydrocarbons.
Original languageAmerican English
Pages (from-to)65-72
Number of pages57
JournalJournal of Petroleum Science and Engineering
DOIs
StatePublished - 1 Apr 2015
Externally publishedYes

Fingerprint

Microbial Consortia
Calcium Carbonate
enhanced oil recovery
Calcite
Petroleum
crude oil
Oils
calcite
Crude oil
Rocks
Recovery
Inosine Monophosphate
rock
Mineral Oil
heavy oil
Metabolites
Viscosity
oil
metabolite
viscosity

Cite this

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title = "Effects of indigenous microbial consortia for enhanced oil recovery in a fragmented calcite rocks system",
abstract = "{\circledC} 2015 Elsevier B.V. Two indigenous bacterial consortia, IMP-100 and IMP-200, proved to have a functional effect on heavy crude oil recovery, indicating a potential implementation in Microbial Enhanced Oil Recovery (MEOR). Growth kinetics of the indigenous bacterial population was performed under anaerobic conditions at 70°C and 33gL-1 of salinity. It was found that both extremophile consortia were able to grow under the latter conditions. Moreover, they synthesized metabolites that altered the surface properties of the supernatants derived from cell cultures, a useful property in oil recovery processes. Ex situ fermentations in the presence of crude oil-impregnated calcite rocks demonstrated that both bacterial consortia enhance crude oil recovery by 8.5{\%} and 13{\%}. In order to identify possible phenomena responsible for incremental oil recovery, emulsification index (E24), surface tension, cell adhesion to hydrocarbons, and crude oil viscosity were characterized. The results demonstrate that IMP-(100, 200) consortia were able to recover heavy crude oil from calcite rocks, possibly due to a decrease in crude oil viscosity, induced by the presence of metabolites and/or the interaction between bacteria and oil hydrocarbons.",
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Effects of indigenous microbial consortia for enhanced oil recovery in a fragmented calcite rocks system. / Gaytán, I.; Mejía, M. A.; Hernández-Gama, R.; Torres, L. G.; Escalante, C. A.; Muñoz-Colunga, Ana.

In: Journal of Petroleum Science and Engineering, 01.04.2015, p. 65-72.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Escalante, C. A.

AU - Muñoz-Colunga, Ana

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