Underground
hydrogen
storage
will
be
essential
to
enabling
a
economy,
given
the
need
store
very
large
gas
volumes
safely
and
cost-effectively.
This
work
focuses
on
challenge
of
identifying
screening
candidate
systems,
unique
behavior
in
subsurface.
Here,
we
describe
resource
assessment
methodology
apply
it
Alaska's
Cook
Inlet
region.
Alaska
provides
an
interesting
case
study
because
its
abundant
renewable
energy
resources,
relatively
low
demand,
isolated
electrical
grid.
The
framework
considers
each
site's
ability
1)
specific
volume,
2)
physically-contain
stored
gas,
3)
limit
biogeochemical
activity.
We
estimate
that
reservoirs
area
could
theoretically
total
286
TWh
(or
8.6
million
tonnes
[Mt])
working
92
pools.
is
likely
sufficient
meet
both
local
demand
support
array
exportable
products.
further
identify
seven
pools
may
especially
well
suited
for
sites.
Broadly,
this
demonstrates
regional
assessments.
On
finer
scale,
enables
next
steps
underground
–
i.e.
reservoir-specific
characterization
development
proceed
area.
International Journal of Hydrogen Energy,
Год журнала:
2024,
Номер
71, С. 1468 - 1485
Опубликована: Май 30, 2024
Seasonal
underground
hydrogen
storage
(UHS)
in
porous
media
provides
an
as
yet
untested
method
for
storing
surplus
renewable
energy
and
balancing
our
demands.
This
study
investigates
the
technical
suitability
UHS
depleted
hydrocarbon
fields
one
deep
aquifer
site
Taranaki
Basin,
Aotearoa
New
Zealand.
Prospective
sites
are
assessed
using
a
decision
tree
approach,
providing
"fast-track"
identifying
potential
sites,
matrix
approach
ranking
optimal
sites.
Based
on
expert
elicitation,
most
important
factors
to
consider
capacity,
reservoir
depth,
parameters
that
affect
injectivity/withdrawal
containment.
Results
from
both
approaches
suggest
Paleogene
reservoirs
gas
(or
cap)
provide
best
option
demonstrating
Zealand,
country's
projected
2050
demand
could
be
exceeded
by
developing
or
two
high
Lower
priority
is
assigned
heterolithic
typically
finer
grained,
labile
and,
clay-rich
Miocene
oil
reservoirs,
aquifers
have
no
proven
Abstract
Groundwater
plays
a
crucial
role
in
Hungary
sustaining
ecosystems
and
meeting
the
growing
demand
for
freshwater
to
fulfill
domestic
agricultural
needs.
This
study
employs
analytical
hierarchy
process
(AHP)
methodology
delineate
groundwater
potential
zones
Debrecen
area,
Hungary.
To
ensure
robustness
reliability
of
zoning,
geophysical
data
are
utilized
validation
purposes.
In
AHP
modeling
seven
conditioning
factors
integrated,
including
geology,
topography,
slope,
land
use/land
cover,
precipitation,
drainage
density,
lineament
density.
The
integration
normalized
weights
each
factor
identified
three
(GWPZs)
assigned
as
moderate,
high,
very
high
potential.
result
model
is
further
validated
with
gravity
wireline
logging.
Gravity
subjected
spectral
analysis
forward
map
lineaments
detect
thickness
sedimentary
sequences.
indicated
that
these
sequences
varies
between
1.25
2.7
km,
deep
local
basin
delimited
by
normal
faults
situated
eastern
part
area.
Additionally,
well-logging
using
Csókás
method
provided
continuous
estimation
petrophysical
hydrogeological
parameters
along
main
hydrostratigraphical
units.
Accordingly,
uniform
distribution
hydraulic
conductivity
observed
area
due
presence
coarse-grained
incised
valley
deposits.
results
showed
close
agreement
models.
interdisciplinary
approach
advanced
mapping
valuable
insights
into
characteristics
aquifers
