Microbial enhanced oil recovery research. Annex 5, Summary annual report 1990--1991

Technical Report · Tue Dec 31 04:00:00 EST 1991

DOI:https://doi.org/10.2172/10128870· OSTI ID:10128870

Sharma, M M; Georgiou, G ^[1]

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1. Texas Univ., Austin, TX (United States)

The objective of this work is to develop an engineering framework for the exploitation of microorganisms to enhance oil recovery. Specific goals include: (1) the production, isolation, chemical characterization and study of the physical properties of microbially produced surfactants; (2) development of simulators for MEOR; (3) model studies in sandstone cores for the characterization of the interactions between growing microbially cultures and oil reservoirs,; (4) design of operation strategies for the sequential injection of microorganisms and nutrient in reservoirs. Accomplishments are: (1) ultra low interfacial tensions (0.003 mN/M) were obtained between decane and 5% NaCl brine using biosurfactants obtained from Bacillus Licheniformis, JF-2 which is the lowest IFT ever reported for biosurfactants; (2) a method to was developed isolate the biosurfactant from the growth medium; (3) the structure of the isolated biosurfactant has been determined; (4) several techniques have been proposed to increase the yield of the surfactant; and (5) an MEOR simulator has been completed.

• Research Organization: Texas Univ., Austin, TX (United States). Dept. of Petroleum Engineering
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-89BC14445
• OSTI ID: 10128870
• Report Number(s): DOE/BC/14445--T2; ON: DE93008389
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300
BACILLUS LICHENIFORMIS
BENCH-SCALE EXPERIMENTS
BIOSYNTHESIS
DRILL CORES
DRILLING AND PRODUCTION
GROWTH
INFRARED SPECTRA
INTERFACES
LIQUID COLUMN CHROMATOGRAPHY
MICROBIAL EOR
NMR SPECTRA
OIL WELLS
PROGRESS REPORT
SANDSTONES
SIMULATORS
STRUCTURAL CHEMICAL ANALYSIS
SURFACE TENSION
SURFACTANTS