Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques

Daily, William D; Laine, Daren L; Laine, Edwin F

Title: Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques

Abstract

Methods are provided for detecting and locating leaks in liners used as barriers in the construction of landfills, surface impoundments, water reservoirs, tanks, and the like. Electrodes are placed in the ground around the periphery of the facility, in the leak detection zone located between two liners if present, and/or within the containment facility. Electrical resistivity data is collected using these electrodes. This data is used to map the electrical resistivity distribution beneath the containment liner or between two liners in a double-lined facility. In an alternative embodiment, an electrode placed within the lined facility is driven to an electrical potential with respect to another electrode placed at a distance from the lined facility (mise-a-la-masse). Voltage differences are then measured between various combinations of additional electrodes placed in the soil on the periphery of the facility, the leak detection zone, or within the facility. A leak of liquid through the liner material will result in an electrical potential distribution that can be measured at the electrodes. The leak position is located by determining the coordinates of an electrical current source pole that best fits the measured potentials with the constraints of the known or assumed resistivity distribution.

Inventors:

Daily, William D ^[1]; Laine, Daren L ^[2]; Laine, Edwin F ^[3]

Livermore, CA
San Anotonio, TX
Penn Valley, CA

Publication Date:: Mon Jan 01 00:00:00 EST 2001

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

OSTI Identifier:: 874176

Patent Number(s):: US 6331778

Assignee:: Leak Location Services, Inc. (San Antonio, TX)

DOE Contract Number:: W-7405-ENG-48

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: methods; detecting; locating; leaks; containment; facilities; electrical; potential; data; resistance; tomographic; imaging; techniques; provided; liners; barriers; construction; landfills; surface; impoundments; water; reservoirs; tanks; electrodes; placed; ground; periphery; facility; leak; detection; zone; located; andor; resistivity; collected; map; distribution; beneath; liner; double-lined; alternative; embodiment; electrode; lined; driven; distance; mise-a-la-masse; voltage; differences; measured; combinations; additional; soil; liquid; material; result; position; determining; coordinates; current; source; pole; fits; potentials; constraints; assumed; electrical current; electrical resistance; various combinations; tomographic imaging; /324/

Citation Formats


                    Daily, William D, Laine, Daren L, and Laine, Edwin F. Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques.  United States: N. p., 2001. 
        Web.

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                    Daily, William D, Laine, Daren L, & Laine, Edwin F. Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques.  United States.

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                    Daily, William D, Laine, Daren L, and Laine, Edwin F. 2001.  
        "Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques".  United States.  https://www.osti.gov/servlets/purl/874176.

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@article{osti_874176,

  title        = {Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques},

  author       = {Daily, William D and Laine, Daren L and Laine, Edwin F},

  abstractNote = {Methods are provided for detecting and locating leaks in liners used as barriers in the construction of landfills, surface impoundments, water reservoirs, tanks, and the like. Electrodes are placed in the ground around the periphery of the facility, in the leak detection zone located between two liners if present, and/or within the containment facility. Electrical resistivity data is collected using these electrodes. This data is used to map the electrical resistivity distribution beneath the containment liner or between two liners in a double-lined facility. In an alternative embodiment, an electrode placed within the lined facility is driven to an electrical potential with respect to another electrode placed at a distance from the lined facility (mise-a-la-masse). Voltage differences are then measured between various combinations of additional electrodes placed in the soil on the periphery of the facility, the leak detection zone, or within the facility. A leak of liquid through the liner material will result in an electrical potential distribution that can be measured at the electrodes. The leak position is located by determining the coordinates of an electrical current source pole that best fits the measured potentials with the constraints of the known or assumed resistivity distribution.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/874176},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 2001},

  month        = {Mon Jan 01 00:00:00 EST 2001}

}

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Works referenced in this record:

Electrical resistance tomography experiments at the Oregon Graduate Institute
journal, April 1995

Daily, W.; Ramirez, A.; LaBrecque, D.
Journal of Applied Geophysics, Vol. 33, Issue 4
https://doi.org/10.1016/0926-9851(95)90043-8

Comparing Reconstruction Algorithms for Electrical Impedance Tomography
journal, November 1987

Yorkey, Thomas J.; Webster, John G.; Tompkins, Willis J.
IEEE Transactions on Biomedical Engineering, Vol. BME-34, Issue 11
https://doi.org/10.1109/TBME.1987.326032

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Title: Methods for detecting and locating leaks in containment facilities using electrical potential data and electrical resistance tomographic imaging techniques

Abstract

Citation Formats

Electrical resistance tomography experiments at the Oregon Graduate Institute journal, April 1995

Comparing Reconstruction Algorithms for Electrical Impedance Tomography journal, November 1987

Electrical resistance tomography experiments at the Oregon Graduate Institute
journal, April 1995

Comparing Reconstruction Algorithms for Electrical Impedance Tomography
journal, November 1987