The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1982
Filed:
Apr. 04, 1980
Applicant:
Inventor:
Mark O Halverson, Collin County, TX (US);
Assignee:
The Anaconda Company, Denver, CO (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01V / ;
U.S. Cl.
CPC ...
324362 ; 324349 ;
Abstract
Apparatus and method for generating a record of telluric noise which is substantially free of induced polarization signals and is suitable for removal of noise components from induced polarization signal records. The apparatus includes a single pair of telluric noise sensing electrodes positioned in alignment with, but substantially beyond the ends of, a somewhat conventional induced polarization electrode spread. The method includes recording of telluric noise occurring at the time of detection of induced polarization signals and the subtraction of a fraction of the telluric noise record from the induced polarization signal records.