In
order
to
accurately
predict
the
injection
and
production
gas
flow
rate
wellhead
pressure
for
compressed
air
energy
storage
in
salt
cavern,
a
coupled
prediction
model
of
based
on
pipe
theory
was
established
this
paper.
And,
high-precision
high-speed
iterative
solution
algorithm
proposed
achieve
accurate
rapid
rate,
pressure,
total
loss.
Furthermore,
influences
factors
such
as
cavity
connectivity,
number
cavities,
depth
wells,
columns,
size
medium
loss
were
discussed.
The
research
results
indicate
that:
①
There
are
good
stability,
fast
convergence
speed,
consistency
between
predicted
on-site
measured
data
model.
②
Under
condition
that
is
connected,
will
be
evenly
distributed
each
well,
well
consistent.
not
wells
with
higher
have
greater
③
With
increase
chambers,
decrease
chamber
depth,
single
tube
decreases.
However,
changes
only
influenced
by
various
factors,
but
also
closely
related
operating
conditions.
④
When
other
conditions
remain
unchanged,
gases
lower
relative
molecular
weight
(such
hydrogen
helium)
during
process.
impact
relatively
small.
can
provide
theoretical
guidance
reasonable
allocation
cavern.
It
help
ensure
safe
efficient
operation
cavern
China.
Journal of Composites Science,
Journal Year:
2025,
Volume and Issue:
9(4), P. 160 - 160
Published: March 27, 2025
The
salt
layer
serves
as
an
excellent
caprock
for
oil
and
gas
resources,
with
its
underlying
strata
often
containing
abundant
hydrocarbon
reserves.
However,
the
strong
creep
characteristics
of
frequently
lead
to
damage
issues.
Therefore,
research
on
wellbore
integrity
layers
holds
significant
practical
value.
This
study
focuses
high-pressure
layers.
Based
Heard
time-hardening
model,
a
numerical
simulation
model
composite
salt-layered
wellbores
incorporating
saline
water
seepage
field
was
established.
analyzed
mechanical
influence
factors
such
well
inclination
angle,
azimuth
brine
density,
liquid
column
density
wellbore.
results
indicate
that
high
formation
pressure,
creep,
in
are
main
causes
stress
deformation.
These
conditions
pose
risk
casing
cement
sheath.
When
designing
directional
trajectories
within
layers,
angle
should
be
controlled
between
45°
60°,
kept
below
30°.
