Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Using electrical impedance tomography to map subsurface hydraulic conductivity

Patent ·
OSTI ID:873377
 [1];  [2];  [3];  [2]
  1. Danville, CA
  2. Livermore, CA
  3. Pleasanton, CA
+ Show Author Affiliations

The use of Electrical Impedance Tomography (EIT) to map subsurface hydraulic conductivity. EIT can be used to map hydraulic conductivity in the subsurface where measurements of both amplitude and phase are made. Hydraulic conductivity depends on at least two parameters: porosity and a length scale parameter. Electrical Resistance Tomography (ERT) measures and maps electrical conductivity (which can be related to porosity) in three dimensions. By introducing phase measurements along with amplitude, the desired additional measurement of a pertinent length scale can be achieved. Hydraulic conductivity controls the ability to flush unwanted fluid contaminants from the surface. Thus inexpensive maps of hydraulic conductivity would improve planning strategies for subsequent remediation efforts. Fluid permeability is also of importance for oil field exploitation and thus detailed knowledge of fluid permeability distribution in three-dimension (3-D) would be a great boon to petroleum reservoir analysts.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA
DOE Contract Number:
W-7405-ENG-48
Assignee:
Regents of University of California (Oakland, CA)
Patent Number(s):
US 6147497
OSTI ID:
873377
Country of Publication:
United States
Language:
English

Similar Records

Related Subjects

/324/
3-d
ability
achieved
additional
amplitude
analysts
boon
conductivity
contaminants
controls
depends
desired
detailed
dimensions
distribution
efforts
electrical
electrical conductivity
electrical impedance
electrical resistance
exploitation
field
fluid
flush
hydraulic
hydraulic conductivity
impedance
impedance tomography
importance
improve
inexpensive
introducing
knowledge
length
map
map subsurface
maps
measurement
measurements
measures
oil
oil field
parameter
parameters
permeability
pertinent
petroleum
phase
phase measurement
planning
porosity
related
remediation
reservoir
resistance
resistance tomography
scale
strategies
subsequent
subsurface
subsurface hydraulic
surface
three-dimension
tomography
unwanted