Materials Research Express,
Journal Year:
2024,
Volume and Issue:
11(5), P. 056510 - 056510
Published: May 1, 2024
Abstract
Microbiologically
influenced
corrosion
has
become
a
predominant
cause
of
pipeline
and
equipment
failure
in
oil
gas
fields.
This
research
examines
the
behavior
steels
with
varying
chromium
contents
simulated
shale
formation
water
environments.
Weight
loss
testing,
Scanning
Electron
Microscopy
(SEM),
Energy
Dispersive
x-ray
Spectroscopy
(EDS),
Focused
Ion
Beam
(FIB),
Transmission
(TEM),
Photoelectron
(XPS)
were
employed.
The
findings
suggest
that
an
elevated
Cr
content
steel
results
gradual
reduction
its
uniform
rate
CO
2
-SRB
coexistence
environment.
can
be
primarily
attributed
to
significant
distribution
throughout
entire
product
film,
including
both
biofilm
products,
thereby
enhancing
film’s
protectiveness.
Additionally,
competitive
between
SRB,
as
well
influence
mechanism
on
corrosion,
discussed.
Microbial Biotechnology,
Journal Year:
2023,
Volume and Issue:
16(11), P. 2026 - 2035
Published: Oct. 5, 2023
Abstract
The
global
economic
burden
of
microbial
corrosion
metals
is
enormous.
Microbial
iron‐containing
most
extensive
under
anaerobic
conditions.
Microbes
form
biofilms
on
metal
surfaces
and
can
directly
extract
electrons
derived
from
the
oxidation
Fe
0
to
2+
support
respiration.
H
2
generated
abiotic
also
serves
as
an
electron
donor
for
respiratory
microbes.
metabolites
accelerate
this
oxidation.
Traditional
strategies
curbing
include
cathodic
protection,
scrapping,
a
diversity
biocides,
alloys
that
protective
layers
or
release
toxic
ions,
polymer
coatings.
However,
these
approaches
are
typically
expensive
and/or
limited
applicability
not
environmentally
friendly.
Biotechnology
may
provide
more
effective
sustainable
solutions.
Biocides
produced
with
microbes
be
less
eukaryotes,
expanding
environments
potential
application.
Microbially
surfactants
diminish
biofilm
formation
by
corrosive
microbes,
quorum‐sensing
inhibitors.
Amendments
phages
predatory
bacteria
have
been
successful
in
attacking
laboratory
studies.
Poorly
deposit
extracellular
polysaccharides
minerals
protect
surface
their
metabolites.
Nitrate
amendments
permit
nitrate
reducers
outcompete
highly
sulphate‐reducing
reducing
corrosion.
Investigation
all
mitigation
its
infancy.
More
study,
especially
relevant
conditions,
including
diverse
communities,
warranted.
