Petroleum Science,
Journal Year:
2023,
Volume and Issue:
21(2), P. 1257 - 1274
Published: Aug. 30, 2023
During
the
production
period
of
shale
gas,
proppant
particles
and
rock
debris
are
produced
together,
which
will
seriously
erode
elbows
gathering
pipelines.
In
response
to
this
problem,
paper
takes
elbow
pipeline
in
Changning
Shale
Gas
Field
as
an
example
test
erosion
rate
material
removal
mechanism
piece
at
different
angles
through
experiments
compares
four
models
with
experimental
results.
Through
analysis,
it
is
found
that
best
prediction
model
for
quartz
sand-carbon
steel
Oka
model.
Based
on
model,
FLUENT
software
was
used
simulate
analyze
law
gas
under
flow
velocities,
pressure,
particle
size,
length
L1,
bending
directions
elbow.
And
a
spiral
structure
proposed
reduce
same
working
conditions.
The
results
show
can
by
34%.
International Journal of Mining Science and Technology,
Journal Year:
2023,
Volume and Issue:
33(10), P. 1243 - 1260
Published: Sept. 19, 2023
Two
critical
factors,
namely
intense
precipitation
and
intricate
excavation,
can
trigger
rock
mass
disasters
in
mining
operations.
In
this
study,
an
indoor
rainfall
system
was
developed
to
precisely
regulate
the
flow
intensity
of
precipitation.
A
large-scale
model
experiment
conducted
on
a
self-designed
physical
simulation
platform
investigate
failure
instability
high-steep
slopes
under
unsaturated
conditions.
The
real-time
reproduction
progressive
process
enabled
determination
revealed
mechanism
underlying
slope
instability.
Experiment
results
indicated
that
may
be
primary
factor
contributing
instability,
while
continuous
pillar
exacerbates
extent
failure.
stage
occurs
at
40
mm/h,
whereas
exceeding
50
mm
induce
reaching
up
60
will
result
improved
region
growing
segmentation
method
(IRGSM)
subsequently
employed
for
image
recognition
deformation
underground
mines.
Herein
error
comparison
with
simple
linear
iterative
cluster
(SLIC)
superpixel
original
(ORGSM)
showed
average
identification
X
Y
directions
by
reduced
significantly
(1.82%
1.80%
IRGSM;
4.70%
6.26%
SLIC;
9.45%
12.40%
ORGSM).
Ultimately,
relationship
between
probability
analyzed
using
Monte
Carlo
method.
Moreover,
stability
assessment
criteria
condition
were
quantitatively
accurately
evaluated.
Deep Underground Science and Engineering,
Journal Year:
2023,
Volume and Issue:
2(2), P. 129 - 147
Published: May 8, 2023
Abstract
Rock
salt
has
excellent
properties
for
its
use
as
underground
leak‐proof
containers
the
storage
of
renewable
energy.
Salt
solution
mining
long
been
used
mining,
and
can
now
be
employed
in
construction
caverns
hydrogen
gas.
This
paper
presents
a
wide
range
methods
to
study
mineralogy,
geochemistry,
microstructure
geomechanical
characteristics
rock
salt,
which
are
important
engineering
safe
caverns.
The
mineralogical
composition
varies
is
linked
depositional
environment
diagenetic
alterations.
related
cataclastic
deformation,
diffusive
mass
transfer
intracrystalline
plastic
then
associated
with
macrostructural
behavior.
Compared
other
types
rock,
exhibits
creep
at
lower
temperatures.
behavior
divided
into
three
phases
based
on
changes
strain
time.
However,
very
low
effective
confining
pressure
high
deviatoric
stress,
exhibit
dilatant
behavior,
where
brittle
deformation
could
compromise
safety
gas
proposed
review
impact
purity,
geochemistry
water
content
thus,
