Characterization and assessment of hydrogen leakage mechanisms in salt caverns
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Jan. 2, 2025
Abstract
Salt
caverns
are
widely
regarded
as
a
suitable
option
for
the
underground
storage
of
hydrogen.
However,
an
accurate
assessment
hydrogen
leakage
through
walls
salt
into
surrounding
formations
remains
crucial.
In
this
work,
flow
formation
is
evaluated
by
assuming
that
rock
consists
bundles
tortuous
nano-capillary
tubes.
A
formulation
was
then
proposed
to
model
in
linear
and
radial
domains.
The
formulations
based
on
newly
unified
gas
valid
entire
range
Knudsen
numbers
accounts
slippage,
bulk
diffusion,
diffusion.
finite-difference
approximation
with
iterative
procedure
used
treat
nonlinearity
solve
presented
formulations.
were
validated
against
experimental
data
reported
literature.
results
obtained
indicated
over
wide
pore
radii
operating
pressures
temperatures,
slippage
regime
must
be
considered.
cavern
relevant
dimensions
conditions,
cumulative
after
30
years
cyclic
only
0.36%
maximum
capacity.
It
also
noticed
most
leaked
would
back
at
times
when
pressure
lower
than
pressure,
e.g.
during
production
subsequent
idle
times.
At
low
very
tight
rock,
diffusion
important
mechanism
transport.
high
though,
viscous
became
predominant
mechanism.
presence
thin
interlayer
such
mudstone,
carbonate,
anhydrite
body
can
have
significant
impact
amount
leakage.
appeared
although
increasing
from
120
135
bar
led
11.9%
increase
capacity,
loss
increased
significantly
0.007%
bar.
Furthermore,
absolute
rate
natural
higher
storage,
relative
relation
capacity
much
lower.
compared
storage.
study
help
better
understanding
it
comes
large-scale
Language: Английский
Hydrogen storage in depleted oil reservoirs: Insight into bibliometric analysis, influencing factors, selection of cushion gas and potential sites
International Journal of Hydrogen Energy,
Journal Year:
2025,
Volume and Issue:
101, P. 1329 - 1361
Published: Jan. 8, 2025
Language: Английский
Evaporation-induced salt precipitation and dry-out evolution during hydrogen storage in geological porous media
International Journal of Hydrogen Energy,
Journal Year:
2025,
Volume and Issue:
102, P. 1306 - 1314
Published: Jan. 17, 2025
Language: Английский
Overpressure Rise Rate Prediction Method for Hydrogen-air Explosions in Vented Silos
Gas Science and Engineering,
Journal Year:
2025,
Volume and Issue:
unknown, P. 205565 - 205565
Published: Feb. 1, 2025
Language: Английский
Energy management of hydrogen tanks
M. Yusuf Ansari,
No information about this author
Faizan Khalid,
No information about this author
Syed Abuzar Suhail
No information about this author
et al.
Elsevier eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Hydrogen Mixing Dynamics in Depleted Gas Reservoirs
Dexuan Li,
No information about this author
Hamid Emami‐Meybodi
No information about this author
SPE Annual Technical Conference and Exhibition,
Journal Year:
2024,
Volume and Issue:
357
Published: Sept. 20, 2024
Abstract
Depleted
gas
reservoirs
are
suggested
as
a
suitable
choice
for
the
sessional
storage
and
utilization
of
hydrogen
(H2)
with
presence
surface
infrastructure,
large
capacity,
available
history
data.
However,
mixing
in-situ
natural
cushion
leads
to
contamination
subsequent
loss
hydrogen.
Hydrodynamic
dispersion
is
an
important
driving
mechanism
during
cyclic
injection/withdrawal.
Accordingly,
we
investigate
dynamics
hydrogen,
gas,
their
impacts
on
recovery
factor
purity
back-produced
We
construct
numerical
model
based
finite-element
method
considering
hydrodynamic
dispersion.
The
then
utilized
examine
injected
under
various
geological
operational
parameters.
results
reveal
that
amount
significantly
influences
produced
As
increases,
H2
purity,
well
factor,
decreases
in
each
withdrawal.
negatively
due
expansion
region,
leading
reduced
factor.
ultimate
around
6%
lower
when
considered.
compared
amount,
plays
minor
role
performance
underground
storage.
Language: Английский