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:
Aug. 11, 1987
Filed:
Nov. 23, 1981
Applicant:
Inventor:
Rambabu P Ranganayaki, Dallas, TX (US);
Assignee:
Mobil Oil Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V / ; G01V / ;
U.S. Cl.
CPC ...
324350 ;
Abstract
In magnetotelluric exploration, plots of equal values of the phase of the determinant of the impedance tensor relating the earth's electric fields to the earth's magnetic fields are plotted to distinguish the structure of resistivity anomalies and separate near surface and deep anomalies. Plots of equal values of the absolute value of the determinant of the impedance tensor are also made. These plots display the dimensionality of the anomaly and produce a better display of anomalies which are at depth.