Energies,
Journal Year:
2024,
Volume and Issue:
17(19), P. 4984 - 4984
Published: Oct. 5, 2024
The
paper
presents
a
simulation-based
approach
for
optimizing
CO2
injection
into
depleted
gas
reservoirs,
with
the
goal
of
enhancing
underground
storage.
research
employs
two-dimensional
dynamic
reservoir
model,
developed
using
Darcy’s
law,
to
describe
flow
in
pressure-homogeneous
porous
medium,
along
real
equations.
model
integrates
Du
Fort–Frenkel
and
finite-difference
methods
accurately
simulate
behavior
during
Real
data
from
an
operational
storage
facility
were
used
calibrate
model.
CO2sim
v1
software,
specifically
this
purpose,
simulates
cycles
quiescence
phases,
enabling
optimization
capacity
energy
efficiency.
based
on
engineering
geological
structure,
is
discretized
approximately
16,000
cells
solved
method,
allowing
rapid
simulation
processes.
average
computation
time
150-day
cycle
5
min.
Simulation
results
indicate
that
increasing
number
wells
carefully
controlling
rates
significantly
improves
distribution
within
reservoir,
thereby
Additionally,
appropriate
well
placement
prolonged
periods
lead
better
dispersion,
potential
while
reducing
costs.
study
concludes
further
development
comprehensive
technical
economic
assessments,
required
fully
optimize
commercial
scale.
Physics of Fluids,
Journal Year:
2025,
Volume and Issue:
37(2)
Published: Feb. 1, 2025
This
article
investigates
thermosolutal
convection
in
bidispersive
porous
medium
with
Soret
effect
and
vertical
throughflow.
The
Oberbeck–Boussinesq
approximation
assumed
fluid
flow
obeys
Darcy's
law.
Local
thermal
equilibrium
is
considered
between
solid
phases.
We
analyze
the
system
stability
through
linear
instability,
nonlinear
(energy
method),
weak
analysis.
expression
for
Ra
derived
analytically,
using
Galerkin
orthogonalization
technique.
Ginzburg–Landau
equation
to
get
deep
insight
into
convective
amplitudes,
also
we
explore
heat
mass
transfer
by
defining
Nusselt
Sherwood
numbers.
research
delves
influence
of
various
physical
parameters
on
system's
stability.
solutal
Rayleigh
number
have
destabilizing
property,
whereas
Lewis
number,
momentum
coefficient,
permeability
ratio
stabilizing
nature.
sub-critical
region
decreases
as
increases.
strong
buoyancy
force
delays
disrupting
existing
transfer.
critical
maintains
symmetry
over
upward
downward
less
area
under
curve
average
implies
total
alleviating.
Energies,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5723 - 5723
Published: Nov. 15, 2024
The
growing
energy
demand
and
the
need
for
climate
mitigation
strategies
have
spurred
interest
in
application
of
CO2–enhanced
oil
recovery
(CO2–EOR)
carbon
capture,
utilization,
storage
(CCUS).
Furthermore,
natural
hydrogen
(H2)
production
underground
(UHS)
geological
media
emerged
as
promising
technologies
cleaner
achieving
net–zero
emissions.
However,
selecting
a
suitable
medium
is
complex,
it
depends
on
physicochemical
petrophysical
characteristics
host
rock.
Solubility
key
factor
affecting
above–mentioned
processes,
critical
to
understand
phase
distribution
estimating
trapping
capacities.
This
paper
conducts
succinct
review
predictive
techniques
present
novel
simple
non–iterative
models
swift
reliable
prediction
solubility
behaviors
CO2–brine
H2–brine
systems
under
varying
conditions
pressure,
temperature,
salinity
(T–P–m
salts),
which
are
crucial
many
energy–related
applications.
proposed
predict
CO2
+
H2O
brine
containing
mixed
salts
various
single
salt
(Na+,
K+,
Ca2+,
Mg2+,
Cl−,
SO42−)
typical
(273.15–523.15
K,
0–71
MPa),
well
H2
NaCl
(273.15–630
0–101
MPa).
validated
against
experimental
data,
with
average
absolute
errors
pure
water
ranging
between
8.19
8.80%
4.03
9.91%,
respectively.
These
results
demonstrate
that
can
accurately
over
wide
range
while
remaining
computationally
efficient
compared
traditional
models.
Importantly,
reproduce
abrupt
variations
composition
during
transitions
account
influence
different
ions
solubility.
capture
salting–out
(SO)
gas
types
consistent
previous
studies.
simplified
presented
this
study
offer
significant
advantages
conventional
approaches,
including
computational
efficiency
accuracy
across
conditions.
explicit,
derivative–continuous
nature
these
eliminates
iterative
algorithms,
making
them
integration
into
large–scale
multiphase
flow
simulations.
work
contributes
field
by
offering
tools
modeling
subsurface
environmental–related
applications,
facilitating
their
transition
aimed
at
reducing
Energies,
Journal Year:
2024,
Volume and Issue:
17(19), P. 5000 - 5000
Published: Oct. 8, 2024
The
increasing
level
of
anthropogenic
CO2
in
the
atmosphere
has
made
it
imperative
to
investigate
an
efficient
method
for
carbon
sequestration.
Geological
sequestration
presents
a
viable
path
mitigate
greenhouse
gas
emissions
by
sequestering
captured
deep
underground
rock
formations
store
permanently.
Geochemistry,
as
cornerstone
geological
(GCS),
plays
indispensable
role.
Therefore,
is
not
just
timely
but
also
urgent
undertake
comprehensive
review
studies
conducted
this
area,
articulate
gaps
and
findings,
give
directions
future
research
areas.
This
paper
reviews
geochemistry
terms
formations,
addressing
mechanisms
trapping,
challenges,
ways
mitigating
challenges
trapping
mechanisms;
mineralization
methods
accelerating
mineralization;
interaction
between
rock,
brine,
long-term
containment
storage
CO2.
Mixing
with
brine
before
or
during
injection,
using
microbes,
selecting
sedimentary
reservoirs
reactive
minerals,
co-injection
carbonate
anhydrase,
enhancing
surface
area
minerals
are
some
used
enhance
mineral
GCS
applications.
addresses
potential
opportunities
associated
storage.
Challenges
include
caprock
integrity,
understanding
lasting
effects
storing
on
developing
reliable
models
monitoring
CO2–brine–rock
interactions,
impurities,
public
concerns
about
safety
environmental
impacts.
Conversely,
lie
vast
like
depleted
oil
reservoirs,
saline
aquifers,
coal
seams,
enhanced
recovery
(EOR)
sites.
Opportunities
improved
geochemical
CO2,
optimized
capacity,
sealing
managed
wellbore
leakage
risk,
use
sealant
materials
reduce
risk.
Furthermore,
impact
advancements
research,
reactions,
leveraging
crucial
achieving
sustainable
mitigation
combating
global
warming
effectively.
