International Journal of Polymer Analysis and Characterization,
Год журнала:
2024,
Номер
unknown, С. 1 - 15
Опубликована: Ноя. 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.
Energies,
Год журнала:
2025,
Номер
18(2), С. 249 - 249
Опубликована: Янв. 8, 2025
Enhancing
oil
recovery
efficiency
is
vital
in
the
energy
industry.
This
study
investigates
magnesium
oxide
(MgO)
nanoparticles
combined
with
sodium
dodecyl
sulfate
(SDS)
surfactants
to
reduce
interfacial
tension
(IFT)
and
improve
recovery.
Pendant
drop
method
measurements
revealed
a
70%
IFT
reduction,
significantly
improving
nanoparticle
dispersion
stability
due
SDS.
Alterations
Zeta
Potential
viscosity,
indicating
enhanced
colloidal
under
reservoir
conditions,
were
key
findings.
These
results
suggest
that
MgO-SDS
system
offers
promising
sustainable
alternative
conventional
methods,
although
challenges
such
as
scaling
up
managing
nanoparticle–surfactant
dynamics
remain.
The
preparation
of
MgO
nanofluids
involved
magnetic
stirring
ultrasonic
homogenization
ensure
thorough
mixing.
Characterization
techniques
included
density,
pH,
Potential,
electric
conductivity,
electrophoretic
mobility
assessments
for
nanofluid
surfactant–nanofluid
systems.
Paraffin
was
used
phase,
concentrations
ranging
from
0.01
0.5
wt%
constant
SDS
concentration
wt%.
reduction
significant,
47.9
26.9
mN/m
0.1
nanofluid.
Even
reduced
41.8
mN/m.
Combining
achieved
enhancing
mobility.
Changes
(from
−2.54
3.45
mV)
pH
8.4
10.8)
indicated
improved
stability,
further
boosting
displacement
experimental
conditions.
shows
promise
cleaner,
cost-effective
Enhanced
Oil
Recovery
(EOR)
method.
However,
diverse
surfactant
adsorption
management,
require
research,
emphasizing
interdisciplinary
approaches
rigorous
field
studies.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Ноя. 12, 2024
The
growing
need
for
energy
and
the
depletion
of
oil
wells
necessitate
advanced
Enhanced
Oil
Recovery
(EOR)
techniques,
particularly
water
polymer
flooding,
which
play
a
crucial
role
in
augmenting
hydrocarbon
recovery
rates.
However,
flooding
high-permeability
layers
often
leads
to
breakthroughs,
reduced
sweep
efficiency,
formation
preferential
channels,
posing
significant
challenges
reservoir
management.
Conformance
control
treatments,
including
use
microspheres,
offer
promising
solution
by
sealing
zones
enhancing
efficiency.
This
study
focuses
on
application
fluorescent
microspheres
based
polyacrylamide,
is
extensively
employed
sector
as
an
displacement
agent.
Fluorescent
polymers
called
Poly
400,
200,
600,
incorporating
cationic
methacrylamide
monomers,
were
synthesized
through
copolymerization
create
amphiphilic
with
enhanced
stability
functionality.
These
evaluated
tests
using
quarter-five-spot
model
transparent
quartz
glass
under
UV
light,
allowing
instantaneous
measurement
observation
fluorescence
intensity.
At
conditions,
experiments
confirm
that
incremental
after
13.1%,
9.1%,
6.1%
OOIP
respectively.
findings
showed
could
efficiently
target
layers,
adapt
varying
pore
throat
sizes,
improve
plugging
rate
thereby
optimizing
recovery.
A
subsequent
simulation
CMG
simulator
provided
further
insights
into
efficacy
these
EOR
agents,
revealing
their
potential
enhance
efficiency
Simulation
results
saturation
decreased
from
68%
(initial)
13.5%,
16.1%,
18.3%
600
work
highlights
valuable
tool
applications,
offering
advancements
management
optimization.
Dendritic
mesoporous
silica
nanoparticles
(DMSNs),
characterized
by
a
high
specific
surface
area
and
abundant
hydroxyl
groups,
offer
promising
approach
to
enhancing
the
performance
of
amphiphilic
polymers
in
challenging
enhanced
oil
recovery
(EOR)
conditions.
In
this
study,
DMSNs
were
successfully
synthesized,
systematically
evaluated
for
their
impact
on
solution
properties
betaine
polymer
(PADC).
The
unique
"flower-like"
structure
provided
approximately
7-fold
higher
than
conventional
SiO2,
facilitating
polymer–nanoparticle
interactions.
DMSN/PADC
composite
system
exhibited
significantly
improved
viscosity,
salt
resistance,
thermal
tolerance,
shear
resistance
compared
PADC
SiO2/PADC
systems.
Quantum
chemical
calculations
elucidated
interaction
mechanisms,
highlighting
role
silanol
groups
forming
electrostatic
interactions
hydrogen
bonds
with
PADC,
thereby
reinforcing
three-dimensional
network
structure.
Enhanced
tests
demonstrated
17.91%
tertiary
using
system,
nearly
double
that
(9.48%).
This
study
underscores
potential
as
novel
additive
optimizing
flooding
formulations,
enabling
superior
EOR
high-temperature,
high-salinity
reservoirs.
Polymers,
Год журнала:
2025,
Номер
17(5), С. 649 - 649
Опубликована: Фев. 28, 2025
Nanoparticles
and
nanocomposites
have
been
used
in
recent
studies
to
improve
oil
reservoir
recovery.
With
the
introduction
of
a
newly
constructed
smart
water
injection
scenario,
this
work
investigated
physicochemical
characteristics
polymeric
carbon
nitride/ZrO2
nanocomposite
(ZrO2/g-C3N4),
results
were
compared
with
pure
ZrO2
nanoparticles
as
known
enhanced
recovery
agent.
The
effects
ZrO2/g-C3N4
on
wettability
change,
zeta
potential,
interfacial
tension
under
conditions
(78
°C
3800
psi)
determined
after
characterization
experiments,
which
included
X-ray
powder
diffraction
(XRD),
Fourier
transform
infrared
spectrometer
(FTIR),
transmission
electron
microscopy
(TEM),
field
emission
scanning
microscope
(FESEM),
energy-dispersive
x-ray
testing
(EDX),
Brunauer-Emmett-Teller
(BET)
analysis.
Based
highest
potential
greatest
reduction
contact
angle
tension,
optimum
concentrations
for
be
30
40
ppm,
respectively.
Moreover,
demonstrated
better
enhancing
parameters,
it
was
selected
low
salinity
flooding
scenarios
three
different
salinities,
including
MgCl2
+
seawater
(SW),
CaCl2
SW,
MgSO4
at
ppm
nanocomposite.
best
readings
its
angle,
show
that
1000
has
among
tested
500-50,000
ppm.
At
SW
had
maximum
(i.e.,
49.36%),
resulted
from
reduction,
stability
other
salinities.
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).
Polymers for Advanced Technologies,
Год журнала:
2024,
Номер
35(11)
Опубликована: Ноя. 1, 2024
ABSTRACT
Biopolymers
are
molecules
widely
used
in
many
industries
because
they
biodegradable
and
have
a
natural
origin.
Therefore,
can
be
obtained
from
renewable
resources
organisms
such
as
animals,
plants,
or
microorganisms.
Among
the
best‐known
biopolymers,
xanthan
gum
is
an
anionic
biopolymer
composed
of
glucose,
mannose,
glucuronic
acid,
pyruvic
acetyl
groups.
It
by
fermentation
with
bacteria
genus
Xanthomonas
,
has
good
physicochemical
properties,
it
biocompatible
human
cells.
However,
disadvantages
very
susceptible
to
microbial
contamination.
various
physical,
chemical,
enzymatic
modification
methods
been
developed
improve
its
biological
properties.
Modifications
backbone
chains
made
possible
create
derivatives
new
uses,
drug
delivery
systems
improving
absorption
pharmaceutical
industry
enhance
efficacy
several
treatments
therapeutic
processes,
promote
cell
proliferation
for
tissue
engineering
biomedical
applications
when
hydrogels
films.
They
also
food
products,
cosmetics,
recover
oil
water
ground,
treat
wastewater,
granting
soil
conditions
plant
vegetables
growth.
Hence,
important
know
develop
impart
properties
obtain
novel
gum.
