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Microbes and oil recovery.

V Moses1

  • 1School of Biological Sciences, Queen Mary College (University of London), UK.

Microbiological Sciences
|October 1, 1987
PubMed
Summary

Enhancing oil recovery involves addressing geological challenges and reservoir pressure. Utilizing bacteria as synthetic agents to introduce chemicals like surfactants offers an effective method for improved crude oil extraction.

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Area of Science:

  • Petroleum Engineering
  • Microbiology
  • Geology

Background:

  • Conventional oilfield operations typically recover only about one-third of original crude oil.
  • Reservoir pressure decline during oil depletion necessitates methods for yield improvement.
  • Geological complexities at macro- and micro-levels present significant recovery challenges.

Purpose of the Study:

  • To explore advanced techniques for increasing crude oil recovery from reservoirs.
  • To investigate the use of chemical treatments to enhance oil extraction efficiency.
  • To evaluate the potential of microbial agents in oilfield operations.

Main Methods:

  • Treating oil-bearing rock formations with specific chemicals, including surfactants and polymers.
  • Employing bacterial populations within the reservoir to act as in-situ chemical delivery agents.
  • Analyzing geological factors influencing oil recovery and pressure maintenance.

Main Results:

  • Chemical treatments can help overcome reservoir depletion and geological barriers.
  • Bacteria can be utilized as biological factories for delivering essential recovery chemicals.
  • Improved oil yields are achievable through integrated geological and chemical approaches.

Conclusions:

  • Microbial enhanced oil recovery (MEOR) presents a promising strategy for boosting production.
  • Combining chemical treatments with bacterial agents offers a synergistic approach to oil extraction.
  • Further research into optimizing bacterial functions and chemical formulations is warranted for maximizing oil recovery.

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