Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(17), P. 16079 - 16088
Published: Aug. 8, 2024
Hydrate
slurry
technology
is
recognized
as
one
of
the
suitable
methods
to
solve
hydrate
blockage
problems
in
deepwater
field
exploitation
and
development.
The
key
applying
this
inject
high-performance
antiagglomerants
(AAs)
prevent
particle
agglomeration
ensure
fluid
flow
under
good
flowable
conditions.
It
better
evaluate
performance
AAs
by
tests;
however,
effective
measurements
laboratory
should
be
carried
out
before
their
industrial
application.
In
work,
was
evaluated
size
distribution
data
measured
situ
focused
beam
reflectance
measurement
(FBRM)
from
a
high-pressure
loop
conditions,
including
unweighted
mean
chord
length,
square
weighted
count-based
length
(CLD).
Meanwhile,
macroscopic
index
named
antiagglomerant
time
proposed
combine
microscopic
AAs.
effects
water
content,
bath
temperature,
AA
dosage
on
were
studied.
results
showed
that
showing
fine
information
changed
slightly
according
different
experimental
while
squared
displaying
large
status
increased
with
an
increase
content
well
decrease
temperature
dosage,
resulting
upward
shifting
CLD,
reduced
antiagglomeration
time,
weakened
mechanisms
affected
addressed.
These
findings
provided
valuable
reference
for
promoting
application
safety
multiphase
pipelines
using
conditions
high
performance.
Energy & Fuels,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Utilizing
flue
gas
for
CH4
replacement
in
natural
hydrate
reservoirs
ensures
formation
stability
and
facilitates
CO2
sequestration,
offering
an
efficient
ecofriendly
approach
to
energy
extraction.
However,
research
on
the
definitive
mechanism
applicability
of
this
mixed
extracting
marine
hydrates
is
currently
lacking.
In
study,
we
remodeled
muddy
silt
sediment
samples
from
South
China
Sea
analyzed
characteristics
generation
reservoir.
Building
upon
this,
have
identified
time-varying
pattern
by
gases
N2
mixtures
unveiled
factors
influencing
extraction
efficiency.
During
progression
reaction,
a
film
forms
surface,
hindering
process.
Concurrently,
poor
permeability
sand
reservoir
renders
multiple
depressurizations
ineffective
enhancing
production.
Hence,
diffusion
rate
pivotal
improving
both
sequestration
rate.
Journal of Chemical & Engineering Data,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 6, 2025
Hydrate
clogging
has
historically
posed
significant
challenges
to
the
exploitation
of
deep-sea
oil
and
gas
reserves.
The
complexity
pipeline-laying
environment,
characterized
by
an
intricate
seabed
topography,
often
results
in
sloping
pipelines.
In
such
configurations,
gas–liquid
two-phase
flow
can
lead
segment
plug
flow,
which
accelerates
hydrate
formation
jeopardizes
safety
natural
transmission
To
enhance
transportation
systems,
it
is
essential
investigate
influence
inclination
angles
on
growth,
thereby
mitigating
potential
blockage
risks.
This
study
employs
a
high-pressure
visual-flow
pipeline
system
systematically
examine
effects
varying
(0,
5,
10,
15°)
generation
rate.
Natural
solubility
was
predicted
under
conditions
for
better
understanding
gas-hydrate
interactions
phase-transition
behaviors,
optimize
conditions,
assess
thermodynamic
stability
hydrates.
findings
reveal
that
angle
significantly
affects
phase
behavior,
alters
fluid
patterns,
enhances
mass
transfer,
consequently
generation.
Furthermore,
this
proposes
utilization
mixed
slurry
density
as
proactive
early
warning
indicator
monitoring
formation.
Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
38(11), P. 9702 - 9710
Published: May 18, 2024
Underlying
the
micromechanism
of
hydrate
phase
change
is
significant
for
marine
natural
gas
resources
exploitation;
however,
current
nondestructive
microtesting
techniques
still
suffer
from
issues
multiphase
distinguish
or
continuous
monitoring.
Therefore,
in
this
study,
a
direct
real-time
visualization
method
within
2.5D
microchip
was
first
proposed
and
applied
research.
Two
different
growth
modes
methane
(CH4)
methane-tetrahydrofuran
(CH4-THF)
after
nucleation
are
found,
their
respective
control
mechanisms
elucidated:
dominant
factor
gas–water
saturation
pore.
Meanwhile,
process
flow
pore
controls
hydrate.
In
addition,
intense
propagation
film
it
demonstrated
that
rate
negatively
affected
by
liquid
saturation.
We
provide
theoretical
basis
solution
ideas
scientific
problems
safe
efficient
extraction
