Imaging the Stratigraphy Around a CPT Penetration Using a Combined ERT and CPT Method

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-06ER86292
Agency Tracking Number: 81037B06-I
Amount: $99,888.00
Phase: Phase I
Program: STTR
Awards Year: 2006
Solitcitation Year: 2006
Solitcitation Topic Code: 07
Solitcitation Number: DE-FG01-05ER05-28
Small Business Information
Vista Engineering Technologies, LLC
8203 W. Quinault Avenue, Building C, Suite 200, Kennewick, WA, 99336
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Wesley Bratton
 (509) 737-1377
Business Contact
 Phillip Ohl
Title: Mr.
Phone: (509) 737-1377
Research Institution
 Lawerence Livermore National Laboratory
 Annette T MacIntyre
 7000 East Avenue
Livermore, CA, 94551
 (925) 423-7254
 Federally funded R&D center (FFRDC)
In order to determine the fate and transport of contaminants generated from past weapons production activities, there is a need to measure the key factors that affect the flow and transport of water and contaminants in the shallow subsurface. Specifically, a method is needed for the real-time imaging of the stratigraphy in the shallow subsurface within 40 meters or more of a CPT (cone penetrometer technology) push or a monitoring well as the penetration is conducted. This project will develop a method to accomplish this imaging, using electrical resistance measurements between an array of electrodes along the groundsurface and a electrode mounted on the CPT probe. Phase I will use numerical modeling and scaled laboratory tests to evaluate the feasibility of using electrical resistance tomography (ERT), implemented with CPT, to image the subsurface stratigraphy within several meters of the CPT location. Commercial Applications And Other Benefits as described by the Applicant: Current subsurface characterization techniques typically provide only point measurements and are not able to reach out past the borehole location to determine whether layers are continuous or pinch out away from the borehole. The combined ERT-CPT approach should permit real-time mapping of the subsurface stratigraphy several meters away from the borehole, providing a much improved image of the subsurface.

* information listed above is at the time of submission.

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