International Journal of Polymer Analysis and Characterization,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 15
Published: Nov. 11, 2024
Polymers
play
a
crucial
role
in
enhanced
oil
recovery
(EOR)
by
increasing
the
viscosity
of
injection
fluids
and
enhancing
displacement.
The
widely
used
polymer,
partially
hydrolyzed
polyacrylamide
(HPAM),
faces
performance
degradation
high-salinity
high-temperature
environments.
This
study
explores
galactomannan
from
Stryphnodendron
polyphyllum
seeds
as
an
alternative
viscosifying
agent
for
EOR
fluids.
An
extraction
process
Barbatimão
Verdadeiro
was
developed,
yielding
23.3%
m/m.
biopolymer
characterized
using
Fourier
transform
infrared
spectroscopy
(FTIR),
nuclear
magnetic
resonance
(NMR),
thermogravimetric
analysis
(TGA),
size
exclusion
chromatography
(SEC).
Rheological
behavior
tested
brines
different
salinities,
injectivity/filterability
tests
were
performed
following
API
RP
63:1990
standards.
obtained
exhibited
mannose-to-galactose
ratio
1.32.
showed
pseudoplastic
behavior,
with
viscosities
38
cP
brine
solutions
at
7.37
s−1
60
°C.
Filterability
demonstrated
satisfactory
injectivity
factors
1.09
(8
µm)
0.67
(1.2
µm).
Compared
to
HPAM,
superior
retention
conditions,
where
HPAM
dropped
6
cP.
extracted
is
promising
applications,
offering
under
harsh
conditions
compared
traditional
HPAM.
Its
resilience
high
salinity
temperature
makes
it
viable
pre-salt
offshore
fields,
contributing
more
sustainable
efficient
recovery.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 13, 2024
Carbon
dioxide
(CO2)
contributes
to
erratic
climate
changes
as
a
greenhouse
gas
in
the
atmosphere,
highlighting
need
for
effective
carbon
capture,
storage,
and
conversion
strategies.
This
study
introduces
green
solvent
approach
using
protic
poly(ionic
liquids)
(PPILs)
CO2
chemisorption
improve
enhanced
oil
recovery
(EOR)
methods
through
gas/polymer
flooding.
The
PPILs
were
synthesized
by
copolymerizing
quaternized
triethanolammonium
2-acrylamido-2-methylpropanesulfonate
(QAMPS)
with
an
equimolar
amount
of
triethanol
ammonium
acrylate
(QAA)
via
radical
polymerization,
resulting
QAMPS/QAA
copolymers.
Similarly,
QAMPS
was
copolymerized
amounts
2-hydroxyethyl
methacrylate
(HEMA)
or
N-vinylpyrrolidone
(VP)
produce
QAMPS/HEMA
QAMPS/VP
PILs.
examined
chemical
structure,
thermal
degradation
stability,
transitions.
QAMPS/QAA,
QAMPS/HEMA,
obtained
at
initial
temperatures
210,
275,
150
°C,
respectively.
rheological
properties
these
assess
their
effectiveness
solubilization,
absorption,
desorption
both
atmospheric
high
pressures
(800
psi)
formation
water
potential
application
EOR
flooding
strategies
examined.
Additionally,
research
explores
dynamics
uptake
PILs
ensuing
alterations
viscosity,
which
are
crucial
enhancing
performance
success
processes.
Flooding
on
1D
sandstone
model
revealed
rates
38.9%
35.3%
QAMPS/VP,
35%
relevant
residual
saturation
(%Sor).
International Journal of Polymer Analysis and Characterization,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 15
Published: Nov. 11, 2024
Polymers
play
a
crucial
role
in
enhanced
oil
recovery
(EOR)
by
increasing
the
viscosity
of
injection
fluids
and
enhancing
displacement.
The
widely
used
polymer,
partially
hydrolyzed
polyacrylamide
(HPAM),
faces
performance
degradation
high-salinity
high-temperature
environments.
This
study
explores
galactomannan
from
Stryphnodendron
polyphyllum
seeds
as
an
alternative
viscosifying
agent
for
EOR
fluids.
An
extraction
process
Barbatimão
Verdadeiro
was
developed,
yielding
23.3%
m/m.
biopolymer
characterized
using
Fourier
transform
infrared
spectroscopy
(FTIR),
nuclear
magnetic
resonance
(NMR),
thermogravimetric
analysis
(TGA),
size
exclusion
chromatography
(SEC).
Rheological
behavior
tested
brines
different
salinities,
injectivity/filterability
tests
were
performed
following
API
RP
63:1990
standards.
obtained
exhibited
mannose-to-galactose
ratio
1.32.
showed
pseudoplastic
behavior,
with
viscosities
38
cP
brine
solutions
at
7.37
s−1
60
°C.
Filterability
demonstrated
satisfactory
injectivity
factors
1.09
(8
µm)
0.67
(1.2
µm).
Compared
to
HPAM,
superior
retention
conditions,
where
HPAM
dropped
6
cP.
extracted
is
promising
applications,
offering
under
harsh
conditions
compared
traditional
HPAM.
Its
resilience
high
salinity
temperature
makes
it
viable
pre-salt
offshore
fields,
contributing
more
sustainable
efficient
recovery.
