Thermal
Reservoir Geomechanics
1.
Geomechanics Introduction
- description
of geomechanics as applied to petroleum engineering
2.
Rock Mechanics Fundamentals
- mechanical
properties
- gas
exsolution & core disturbance
- shearing,
dilation, & increased permeability
- absolute
permeability of oilsands
3.
Stresses
- in
situ rock stresses
- stress
orientations
- stress
magnitudes
- formation
pressures
- tectonics
- injection
pressures for shearing
- fracturing
- geomechanical-quality
core
- geomechanical
laboratory procedures and tests
4.
Thermal Processes
- overview
of common thermal processes
- waterflood
- steamflood
- CSS
- SAGD
- air
injection
- VAPEX
5.
SAGD
- mechanics
of the SAGD process
- injection
pressures for geomechanical enhancement
- directional
shearing
- mudstones
as baffles and barriers
- heat
transfer: conduction vs.
convection
- injection
pressure as a function of depth
- vertical
and lateral strains
- surface
heave
- low
pressure vs. high pressure steam injection
6.
CSS
- mechanics
of the CSS process
- reservoir
properties changes with increased steam cycles
- early,
mid, and late cycle CSS
- ground
surface uplift and subsidence
- influence
of dilation on uphole aquifer
7.
Caprock Integrity
- hydraulic
vs. mechanical integrity
- typical
stress profile
- laboratory
tests
- minifrac
tests
- fault
reactivation
- stress
arching
8.
Thermal Stresses
- effects
on fractures
- effects
on oilsands
- thermal
strains & stresses
- thermal
jacking
- fracture
flow
9.
Borehole Stability and Casing Integrity
- borehole
stability
- rock
strength
- hydraulically-induced
shale fracture
- casing
failures during CSS
10.
Instrumentation & Monitoring
- types
of geomechanical instrumentation
- InSAR
- 4-D
seismic
- example
measurements
11.
Workflow
- knowing
objectives
- building
links with “how” and “why”
- example
12.
Summary
Apply now:
courses@PetroleumGeomechanics.com
Revised: August 22, 2013
.