Geophysical Research Letters,
Journal Year:
2023,
Volume and Issue:
50(7)
Published: March 30, 2023
Abstract
We
use
high‐resolution
three‐dimensional
X‐ray
imaging
to
study
hydrogen
injection
and
withdrawal
in
the
pore
space
of
Bentheimer
sandstone.
The
results
are
compared
with
a
replicate
experiment
using
nitrogen.
observe
less
trapping
because
initial
saturation
after
drainage
is
lower
due
channeling.
Remarkably
we
that
imbibition,
if
sample
imaged
again
12
hr,
there
significant
rearrangement
trapped
hydrogen.
Many
smaller
ganglia
disappear
while
larger
swell,
no
detectable
change
overall
gas
volume.
For
nitrogen,
fluid
configuration
largely
unchanged.
This
facilitated
by
concentration
gradients
dissolved
aqueous
phase—Ostwald
ripening,
estimate
time‐scales
for
this
effect
be
significant,
consistent
experimental
observations.
swelling
potentially
increases
connectivity,
leading
hysteresis
more
efficient
withdrawal.
ACS Energy Letters,
Journal Year:
2022,
Volume and Issue:
7(7), P. 2203 - 2210
Published: June 3, 2022
The
geological
storage
of
hydrogen
is
necessary
to
enable
the
successful
transition
a
economy
and
achieve
net-zero
emissions
targets.
Comprehensive
investigations
must
be
undertaken
for
each
site
ensure
their
long-term
suitability
functionality.
As
such,
systematic
infrastructure
potential
risks
large-scale
established.
Herein,
we
conducted
over
250
batch
reaction
experiments
with
different
types
reservoir
sandstones
under
conditions
representative
subsurface,
reflecting
expected
time
scales
storage,
investigate
reactions
involving
hydrogen.
Each
experiment
was
paired
hydrogen-free
control
otherwise
identical
that
any
observed
were
due
presence
results
conclusively
reveal
there
no
risk
loss
or
integrity
degradation
abiotic
geochemical
in
sandstone
reservoirs.
Fuel,
Journal Year:
2022,
Volume and Issue:
337, P. 127032 - 127032
Published: Dec. 30, 2022
Hydrogen
future
depends
on
large-scale
storage,
which
can
be
provided
by
geological
formations
(such
as
caverns,
aquifers,
and
depleted
oil
gas
reservoirs)
to
handle
demand
supply
changes,
a
typical
hysteresis
of
most
renewable
energy
sources.
Amongst
them,
natural
reservoirs
are
the
cost-effective
secure
solutions
due
their
wide
geographic
distribution,
proven
surface
facilities,
less
ambiguous
site
evaluation.
They
also
require
cushion
native
residual
gases
serve
buffer
for
pressure
maintenance
during
storage.
However,
there
is
lack
thorough
understanding
this
technology.
This
work
aims
provide
comprehensive
insight
technical
outlook
into
hydrogen
storage
in
reservoirs.
It
briefly
discusses
operating
potential
case
studies,
thermophysical
petrophysical
properties
withdrawal
capacity,
immobilization,
efficient
containment.
Furthermore,
comparative
approach
hydrogen,
methane,
carbon
dioxide
with
respect
well
integrity
has
been
highlighted.
A
summary
key
findings,
challenges,
prospects
reported.
Based
review,
hydrodynamics,
geochemical,
microbial
factors
subsurface’s
principal
promoters
losses.
The
injection
strategy,
reservoir
features,
quality,
operational
parameters
significantly
impact
Future
works
(experimental
simulation)
were
recommended
focus
hydrodynamics
geomechanics
aspects
related
migration,
mixing,
dispersion
improved
recovery.
Overall,
review
provides
streamlined
Progress in Energy and Combustion Science,
Journal Year:
2022,
Volume and Issue:
95, P. 101066 - 101066
Published: Dec. 10, 2022
Hydrogen
(H2)
is
currently
considered
a
clean
fuel
to
decrease
anthropogenic
greenhouse
gas
emissions
and
will
play
vital
role
in
climate
change
mitigation.
Nevertheless,
one
of
the
primary
challenges
achieving
complete
H2
economy
large-scale
storage
H2,
which
unsafe
on
surface
because
highly
compressible,
volatile,
flammable.
geological
formations
could
be
potential
solution
this
problem
abundance
such
their
high
capacities.
Wettability
plays
critical
displacement
formation
water
determines
containment
safety,
capacity,
amount
trapped
(or
recovery
factor).
However,
no
comprehensive
review
article
has
been
published
explaining
wettability
conditions.
Therefore,
focuses
influence
various
parameters,
as
salinity,
temperature,
pressure,
roughness,
type,
and,
consequently,
storage.
Significant
gaps
exist
literature
understanding
effect
organic
material
capacity.
Thus,
summarizes
recent
advances
rock/H2/brine
systems
containing
reservoirs.
The
paper
also
presents
influential
parameters
affecting
capacity
including
liquid–gas
interfacial
tension,
rock–fluid
adsorption.
aims
provide
scientific
community
with
an
expert
opinion
understand
identify
solutions.
In
addition,
essential
differences
between
underground
(UHS),
natural
storage,
carbon
dioxide
are
discussed,
direction
future
research
presented.
promotes
thorough
knowledge
UHS,
provides
guidance
operating
UHS
projects,
encourages
engineers
focus
more
research,
overview
advanced
technology.
This
inspires
researchers
field
give
credit
studies.
Hydrogen
is
an
energy
carrier
that
could
play
important
role
in
reducing
emissions
associated
with
difficult-to-decarbonize
sectors
including
peaking
and
load-following
electricity
industrial
heating.
Blending
hydrogen
into
the
natural
gas
pipelines
has
been
proposed
as
approach
for
achieving
near-term
reductions
early-market
access
technologies
such
electrolyzers.
Numerous
challenges
uncertainties
complicate
this
to
decarbonization,
however,
review
summarizes
current
research
on
material,
economic,
operational
factors
must
be
considered
blending.
First,
explores
previous
regarding
effects
of
blending
mixture
fluid
thermodynamic
properties,
pipeline
materials
equipment
performance
within
transmission
distribution
networks,
supporting
facilities
underground
storage
end-use
separation.
We
also
investigate
summarize
studies
developed
mathematical
models
networks
blending,
techno-economic
findings
these
network
studies.
Finally,
we
discuss
notable
demonstrations
their
key
outcomes.
Many
internationally
have
proven
low
percentage
feasible
under
very
specific
scenarios
limited
end-usage
applications
both
high-pressure
lines
low-pressure
lines.
This
report
from
literature
areas
consensus
disagreement.
Research
gaps
disagreements
between
are
highlighted
provide
directions
future
research.
