Low-carbon UHPC with carbonated blast furnace slag: Impact of mineral composition, carbonation degree, and CaCO3 polymorphs
Cement and Concrete Composites,
Journal Year:
2025,
Volume and Issue:
unknown, P. 106039 - 106039
Published: March 1, 2025
Language: Английский
Impact of petrophysical properties on CO2 residual trapping in limestone formations
Fuel,
Journal Year:
2025,
Volume and Issue:
396, P. 135327 - 135327
Published: April 10, 2025
Language: Английский
Analysis of Carbon Dioxide Mineralization in Carbonates from Tampico-Misantla Basin, Mexico: Effect of Organic Matter Content
Processes,
Journal Year:
2025,
Volume and Issue:
13(4), P. 1087 - 1087
Published: April 4, 2025
The
pursuit
of
effective
climate
change
mitigation
strategies
is
driving
research
into
geological
carbon
dioxide
(CO2)
storage.
present
work
explores
the
interaction
CO2
with
carbonate
rocks
from
El
Abra
formation
in
Tampico-Misantla
basin,
focusing
on
comparative
influence
organic
matter
(OM)
content
mineralization
processes,
hypothesizing
that
variations
OM
significantly
modulate
process
affecting
both
rate
and
type
formation.
Expanding
a
previous
study,
studied
injected
under
high-pressure
(1350-2350
PSI)
high-temperature
(60–110
°C)
conditions
two
contrasting
samples:
one
high
another
low
content.
Structural,
morphological,
physical
adsorption
changes
were
evaluated
through
Fourier
transform
infrared
(FT-IR)
spectroscopy,
X-ray
diffraction
(XRD),
scanning
electron
microscopy
(SEM),
Brunauer–Emmett–Teller
(BET)
analyses.
findings
indicate
mineralogy
promotes
secondary
precipitation,
rock–fluid
interactions
enhanced
by
brine
presence.
Samples
exhibited
dramatic
reduction
average
particle
size
13
μm
to
2
μm,
along
metastable
phases,
such
as
vaterite—evidenced
XRD
peak
shifting
modifications
FT-IR
spectrum
bands.
Meanwhile,
low-OM
samples
showed
an
increase
1.6
between
3.26
4.12
indicating
predominant
recrystallization.
BET
analysis
confirmed
significant
porosity
enhancement
high-OM
(up
2.918
m2/g).
Therefore,
plays
critical
role
modulating
mineralization,
potentially
enhancing
storage
capacity
samples.
These
integrated
demonstrate
critically
governs
calcite
dissolution,
formation,
microstructural
evolution,
providing
key
insights
for
optimizing
complex
reservoirs.
Language: Английский
Rock Permeability Effect on Residual CO2 Trapping Efficiency in Carbonate Formations
Offshore Technology Conference,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 28, 2025
Abstract
The
degree
of
success
CO2
storage
depends
on
many
factors
that
control
the
safety
and
efficiency
such
projects.
Formation
permeability
is
considered
one
main
affecting
this
promising
technique.
Specifically,
it
controls
trapped
by
residual
trapping,
trapping
mechanisms.
Therefore,
need
to
provide
deeper
insights
how
latter
can
affect
highly
desired.
scope
study
explore
experimentally
effect
rock
properties,
particularly
in
carbonate/brine/CO2
geo-systems.
Carbonate
Limestone
samples
are
selected
with
different
ranges
i.e.,
low
(4-5
mD),
mid
(20-30
mD)
high
(>60
mD).
Full
characterization
core
was
done
first
including
SEM,
NMR,
XRD
analysis
generation
capillary
pressure
curves.
Later,
a
series
flooding
experiments
carried
out
at
supercritical
conditions
(P=
10
MPa
T=
323
K).
Unsteady
state
method
adopted
for
process
including:
1)
Drainage
determine
initial
saturation
(Sgi),
2)
Imbibition
(Sgr)
constant
flow
rate
0.5
mL/min
both.
Finally,
assessed
material
balance
approach.
results
indicate
stored
dependent
properties
associated
pore
network.
Notably,
carbonate
rocks
low,
moderate
significantly
influence
capacity.
As
observation,
found
no
proper
correlation
exists
between
Sgi
Sgr
when
increases.
However,
decreases
increase
which
implies
narrow
size
distribution
better
candidates
trapping.
After
detecting
great
discrepancy
literature
regarding
carbonate/CO2/brine
system,
due
scarcity
data
sets
generated
research
area,
further
needed
contribute
establishment
well-defined
trends
behavior.
This
presents
thorough
examination
limestone
reservoirs.
Language: Английский