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:
Nov. 02, 2021
Filed:
Jan. 10, 2018
Applicant:
University of Houston System, Houston, TX (US);
Inventors:
Assignee:
UNIVERSITY OF HOUSTON SYSTEM, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 3/30 (2006.01); E21B 47/002 (2012.01); E21B 49/00 (2006.01); G01N 22/00 (2006.01);
U.S. Cl.
CPC ...
G01V 3/30 (2013.01); E21B 47/002 (2020.05); E21B 49/00 (2013.01); G01N 22/00 (2013.01);
Abstract
An oil-based mud wellbore imaging apparatus for measuring formation permittivity and resistivity includes a reflectometry-type microwave scanning system. The system contains at least one high-Q microstrip resonator with one or more slots on the top surface. The microstrip resonator is excited by one port, which is fed with electromagnetic signals by a coaxial cable. From the phase detection of signal at the port, the formation resistivity and permittivity can be determined and corresponding borehole images can be generated.