Journal of Physics Conference Series,
Journal Year:
2023,
Volume and Issue:
2499(1), P. 012015 - 012015
Published: May 1, 2023
Abstract
The
wall
thickness
of
the
sewage
pipeline
on
a
shale
gas
platform
is
seriously
reduced.
In
order
to
explore
specific
reasons
for
failure,
this
paper
carried
out
analysis
by
means
macroscopic
inspection,
mechanical
property
test,
chemical
composition
base
metal
and
corrosion
product
analysis.
results
show
that
site
corroded
most
at
5
o
′clock
12
near
outlet,
liquid
accumulation
containing
CO
2
main
reason
serious
failure
inner
pipeline.
This
explores
platform,
provides
reference
prevention
Case Studies in Thermal Engineering,
Journal Year:
2023,
Volume and Issue:
42, P. 102742 - 102742
Published: Jan. 17, 2023
Erosion
caused
by
solid
particles
is
one
of
the
important
reasons
for
failure
shale
gas
gathering
pipelines.
However,
erosion
laws
right-angle
pipe
and
blind
tee
were
rarely
compared
in
previous
studies,
parameter
settings
almost
did
not
meet
actual
requirements
exploitation.
The
aim
this
paper
to
study
90°
elbow,
based
on
production
parameters
a
field.
CFD-DPM
approach
integrates
Mixture
model,
Discrete
Phase
Model,
an
model
employed
predict
particle
gas-liquid
two-phase
flow
results
show
that
maximum
rate
wall
increases
exponentially
with
fluid
velocity.
With
development
mining,
lower
free
water
content,
more
serious
erosion.
In
addition,
under
same
working
conditions,
relatively
erosion-resistant
elbow
pipe.
transmission
system
can
use
tees
connect
pipes
limit
velocity,
so
as
prolong
service
life
ensure
safety.
Petroleum Science,
Journal Year:
2023,
Volume and Issue:
20(3), P. 1857 - 1873
Published: Jan. 31, 2023
The
transmission
medium
of
natural
gas
gathering
and
transportation
pipelines
usually
contains
corrosive
gases,
which
will
cause
serious
corrosion
on
the
inner
wall
when
they
coexist
with
water.
Therefore,
it
is
necessary
to
add
inhibitor
form
a
protective
film
protect
pipeline.
distribution
inhibitors
in
pipeline
Moxi
field
was
studied
by
combining
experiment
simulation.
Pearson
function
used
calculate
experimental
simulation
results,
correlation
more
than
80%,
indicating
high
degree
agreement.
results
show
that:
①
larger
pipe
angle,
filling
speed
flow
rate,
smaller
particle
size,
better
particles
pipe.
amount
affect
concentration,
but
trend
unchanged;
②
A
method
determine
mode
based
loss
proposed,
for
this
pipeline,
determined
be
5.31
×
10−3
kg/s,
recommended
adjusted
20
L/h,
has
certain
guiding
significance
actual
strategy
inhibitor.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: Nov. 22, 2023
A
failure
analysis
of
API
X52
steel
pipeline
was
conducted.
The
investigation
included
complete
material
characterizations
using
tensile
and
hardness
testing,
optical
microscope,
SEM,
EDS.
main
occurred
in
the
downstream
pipe
located
near
welded
joint
at
elbow
outlet
instead
which
interesting.
mechanism
found
to
be
erosion-corrosion
that
caused
breakdown
protective
FeCO3
film,
thinning
pipe,
finally
failure.
It
is
believed
induced
by
sand
impingement
due
turbulent
flow
promoted
sudden
change
cross
section
between
inlet
upstream
poor
welding
quality
outlet.
Metals,
Journal Year:
2022,
Volume and Issue:
13(1), P. 80 - 80
Published: Dec. 28, 2022
This
work
studies
a
series
of
factors
influencing
erosion-corrosion
in
oilfield
gathering
pipelines
steel
using
the
home-made
testing
pipe
flow
loop.
Results
showed
that
was
corroded
oil-water
flow.
The
corrosion
rate
increased
with
velocity
on
whole,
and
addition
solid
particles
would
intensify
localized
corrosion.
For
test
added
2
wt%
quartz
sand
at
m/s,
portion
pure
erosion
accounted
for
47.50%
70.83%,
respectively.
erosion-enhanced
16.67%
total
weight
loss,
while
inhibiting
damage
from
35.00%,
so
negative
synergistic
effects
appeared
oil-water-sand
multiphase
conditions.
Surface Engineering,
Journal Year:
2024,
Volume and Issue:
40(5), P. 575 - 590
Published: May 1, 2024
Thermal
spray
coatings
enhance
one
or
more
surface
properties
of
engineering
components.
In
this
work,
NiCrSiBCFe-WC-Co
composite
coating
powder
is
deposited
over
SA213-T12
boiler
steel
using
the
high
velocity
oxy
fuel
spraying
(HVOF)
and
low
(LVOF)
thermal
methods
to
improve
erosion
performance.
XRD
scanning
electron
microscopy
(SEM)/energy
dispersive
spectroscopy
(EDS)
were
used
examine
surfaces
constituents
as-deposited
specimens,
whereas
SEM
was
investigate
eroded
specimens.
The
behaviours
developed
investigated
at
30°
90°
impact
angles,
53
m/s
400°C.
analysis
HVOF
showed
an
additional
peaks
NiCo
2
O
4
,
SiC
Ni
B
with
common
Ni,
WC,
W
C,
Cr
23
C
6
(Cr,Co,Ni)
that
LVOF
coating.
HVOF-sprayed
demonstrated
higher
microhardness
adhesion
strength
lower
porosity
than
LVOF-sprayed
comparatively
better
resistance
coating,
attributed
its
superior
properties.
mechanism
erosion,
concerning
different
characteristics
coatings,
discussed.
