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Title: Biochemically enhanced oil recovery and oil treatment

This invention relates to the preparation of new, modified organisms, through challenge growth processes, that are viable in the extreme temperature, pressure and pH conditions and salt concentrations of an oil reservoir and that are suitable for use in microbial enhanced oil recovery. The modified microorganisms of the present invention are used to enhance oil recovery and remove sulfur compounds and metals from the crude oil. 62 figures.
Inventors:
;
Issue Date:
OSTI Identifier:
5109946
Assignee:
Associated Universities, Inc., Washington, DC (United States) PTO; EDB-94-073489
Patent Number(s):
US 5297625; A
Application Number:
PPN: US 7-905391
Contract Number:
AC02-76CH00016
Resource Relation:
Patent File Date: 29 Jun 1992
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; MICROBIAL EOR; MICROORGANISMS; PETROLEUM; DEMETALLIZATION; DESULFURIZATION; BIOSYNTHESIS; IN-SITU PROCESSING; CHEMICAL REACTIONS; ENERGY SOURCES; ENHANCED RECOVERY; FOSSIL FUELS; FUELS; PROCESSING; SEPARATION PROCESSES; SYNTHESIS; 020300* - Petroleum- Drilling & Production; 020400 - Petroleum- Processing