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Surfactant Enhanced Oil Recovery
(EOR) |
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| One important technology
challenge is to increase crude oil
production to meet the increasing
demand for energy worldwide. Even
maintaining current oil production
is difficult in the United States
with its mature properties, but
also is a vital economic as well
as a national security issue. As
shown below, of the total of 649
billion barrels in the United States,
only 22 billion barrels remain that
are recoverable easily by conventional
means. On the other hand, new enhanced
oil recovery (EOR) methods offer
the prospect of recovering as much
as 377 billion barrels of oil from
already existing properties; this
is about twice the amount of cumulative
crude oil produced to date. |
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Surfactant EOR
represents one of the most promising
advanced methods to recover a
substantial proportion of this
377 billion barrel target. In
this technology, an aqueous surfactant
formulation is injected into a
mature oil reservoir. Where this
solution contacts the small blobs
of oil trapped in the pores of
the reservoir rock, it dramatically
reduces the interfacial tension
(IFT) and mobilizes this trapped
oil. The Department of Energy
has sponsored two projects at
the California Institute of Technology
to design new surfactant systems
to make this process commercially
attractive. A key to identifying
superior, novel surfactants for
this application has been using
our unique technology to predict
IFT performance. A third, related
project sponsored by DOE is to
employ advanced biotechnology
methods to increase the production
of bio-surfactants from selected
strains of bacteria. Initially
we seek to improve the efficiency
of bio-production of EOR surfactants
as a manufacturing process; later
in the project we will implant
this more efficient bio-process
ability into bacteria already
adapted to the subsurface oil
field environment.
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| RELATED PROJECTS: |
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Project 1: Lower Cost Methods
for Improved Oil Recovery via
Surfactant Flooding
Sponsor: U. S. Department
of Energy(DOE)
Co-sponsors: ChevronTexaco
and Akzo Nobel
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Project 2: Cost Effective
Surfactant Formulations for Improved
Oil Recovery in Carbonate Reservoir
Sponsor: U. S. Department
of Energy(DOE)
Co-sponsor: ChevronTexaco
and Akzo Nobel
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Project 3: Bio-Engineering
High Performance Microbial Strains
for MEOR by Directed Protein Evolution
Technology"
Sponsor: U. S. Department of
Energy(DOE)
Co-sponsor: ChevronTexaco
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