Effect of non-Fourier heat transfer on the thermoporoelastic response of a borehole
Acta Mechanica,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 13, 2025
Язык: Английский
Subsurface Energy Technological Advances Enabled by Novel Analytical and Numerical Engineering Mechanics Methods
Journal of Engineering Mechanics,
Год журнала:
2025,
Номер
151(4)
Опубликована: Фев. 4, 2025
Язык: Английский
Poroelastic Solutions of a Semipermeable Borehole under Nonhydrostatic In Situ Stresses within Transversely Isotropic Media
International Journal of Geomechanics,
Год журнала:
2024,
Номер
25(2)
Опубликована: Ноя. 29, 2024
Язык: Английский
Effects of local thermal non-equilibrium on hydraulic stimulation efficiency of enhanced geothermal systems
Geomechanics and Geophysics for Geo-Energy and Geo-Resources,
Год журнала:
2024,
Номер
10(1)
Опубликована: Фев. 16, 2024
Abstract
Motivated
by
hydraulic
stimulation
of
enhanced
geothermal
systems,
the
present
paper
investigates
coupled
thermo-hydro-mechanical
response
a
well
imbedded
in
thermoporoelastic
medium,
subjected
to
non-isothermal
fluid
flux
and
convective
cooling
on
borehole
surface.
Our
focus
centers
effect
local
thermal
non-equilibrium
(LTNE)
temporal-spatial
evolution
temperatures,
pore
pressure,
stresses,
where
solid
phases
have
two
distinct
temperatures
heat
transfer
between
is
addressed.
We
employ
integral
transform
load
decomposition
techniques
derive
analytical
solutions
Laplace
domain.
This
methodology
allows
us
disentangle
separate
individual
contributions
changes
pressure
stresses
from
injection
transfer.
The
results
reveal
that
compared
classical
equilibrium
model,
thermally
induced
slightly
lower
under
LTNE
conditions.
has
significant
influence
temporal
especially
vicinity
wellbore.
Язык: Английский
Semi-analytical Solutions for Wellbores with Graded Skin Zones in Poroelastic Media
Acta Mechanica Solida Sinica,
Год журнала:
2024,
Номер
37(3), С. 385 - 395
Опубликована: Май 15, 2024
Язык: Английский
Long-Term Performance and Security of Gas Production for Horizontal-Well Depressurization Exploitation: Insights from a Coupled Thermo-Hydro-Mechanical-Chemical Model for the Shenhu Hydrate Reservoir
Energy & Fuels,
Год журнала:
2023,
Номер
37(19), С. 14824 - 14835
Опубликована: Сен. 15, 2023
Horizontal-well
depressurization
for
marine
hydrate
exploitation
started
in
2020.
Short-term
gas
production
stability
(∼30
days)
contrasts
with
ongoing
uncertainties
about
long-term
performance
and
security.
To
address
these
concerns,
we
used
the
2020
Shenhu
field
test
as
a
case
study
created
fully
coupled
thermo-hydro-mechanical-chemical
model.
Employing
this
model,
cumulative
closely
matched
data,
deviation
below
1.5%.
Our
numerical
simulations
showed
following:
(1)
Following
initiation,
rapid
increase
effective
principal
stress
of
reservoir
stabilized
near
well
after
30
days
at
seafloor
2
years,
without
reaching
failure
conditions.
(2)
Variable
led
to
complex
temporal
spatial
formation
deformation.
During
30-day
test,
subsidence
mostly
occurred
(<10
cm).
However,
approximately
250
days,
measurable
(∼3
cm)
began,
21
cm
4
years.
(3)
Formation
deformation
hindered
production.
Simulations
indicated
reductions
33.6
15.2%
release
volumes,
respectively,
over
5
findings
shed
light
on
interplay
among
depressurization,
deformation,
exploitation,
contributing
better
understanding
dynamics
exploitation.
Язык: Английский
Comprehensive Wellbore Stability Modeling by Integrating Poroelastic, Thermal, and Chemical Effects with Advanced Numerical Techniques
ACS Omega,
Год журнала:
2024,
Номер
9(52), С. 51536 - 51553
Опубликована: Дек. 18, 2024
Wellbore
stability
in
extreme
drilling
environments
remains
a
critical
challenge.
This
study
advances
the
understanding
of
these
complexities
through
comprehensive
numerical
modeling
approach.
By
incorporating
thermal,
chemical,
and
hydraulic
effects,
four
refined
models
were
developed
to
simulate
wellbore
behavior
under
high
pressures
temperatures.
A
comparative
analysis
failure
criteria
detailed
investigation
into
impact
fluid
properties
on
pore
pressure
stress
distribution
provide
novel
insights.
The
results
indicate
that
variations
around
are
significantly
influenced
by
poroelastic,
chemical
effects.
poroelastic
effect
increases
due
overbalanced
conditions,
while
thermal
effects
vary
with
temperature,
leading
notable
changes.
Chemical
significant,
lower
salinity
mud
increasing
higher
decreasing
it.
Thermal
primarily
dominate
distribution,
altering
radial,
tangential,
axial
stresses,
tangential
stresses
peaking
direction
minimum
horizontal
stress.
Collapse
area
predictions
suggest
Mohr-Coulomb
Drucker-Prager
predict
larger
collapse
areas
compared
Mogi-Coulomb
Modified-Lade
criteria,
indicating
more
conservative
Poroelastic
slightly
enlarge
increased
pressure,
reduce
cooling
increase
them
heating.
Higher
improves
formation
enhancing
effective
reducing
pressure.
demonstrate
using
enhances
careful
management
temperature
can
mitigate
risks.
Regular
monitoring
adjustments
based
essential
for
optimizing
performance
safety
operations.
findings
reveal
carefully
managing
effectively
enhance
stability,
which
offers
practical
guidelines
mitigating
risks
operations
challenging
formations.
Язык: Английский