Transport of a Thermophilic Geobacillus sp. in Sandpack Core as an Enhanced Oil Recovery Material

Xiang Ping Kong

doi:10.4028/www.scientific.net/AMM.164.182

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 164Transport of a Thermophilic Geobacillus sp. in...

Transport of a Thermophilic Geobacillus sp. in Sandpack Core as an Enhanced Oil Recovery Material

Abstract:

The effects of temperature, permeability and the presence of a residual oil phase on the transport of the bacterium Geobacillus sp. were investigated experimentally in sandpack cores. A lower reduction in permeability and a higher effluent bacterial concentration were obtained in the higher permeability sandpacks, or at a higher temperature. The bacterial transport could be enhanced by the pulse injection, but reduced with the presence of residual oil. When the injected cell concentration is relatively high (>10⁸ cells/mL), log-jam effect or pore bridging may be the primary mechanism, and the surface adhesion may act as the secondary mechanism of bacteria retention and permeability reduction.

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Applied Mechanics and Materials (Volume 164)

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182-185

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.164.182

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April 2012

Authors:

Xiang Ping Kong

Keywords:

Bacterial Transport, Geobacillus sp., Sandpack Core, Thermophilic Bacteria

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