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:
Sep. 17, 2002
Filed:
Jan. 27, 2000
Applicant:
Inventors:
Richard Hedley Clarke, Wiltshire, GB;
John William Aidan Millar, Wiltshire, GB;
Assignee:
Court Services Limited, Isle of Man, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/100 ; G01V 1/40 ; G01V 3/18 ;
U.S. Cl.
CPC ...
G01V 1/100 ; G01V 1/40 ; G01V 3/18 ;
Abstract
A method and apparatus for determining properties of rocks surrounding a borehole in which electrokinetic signals are generated in the rocks is disclosed. For example, the signals may be generated by the vibration induced by the drilling of the borehole or by a seismic source emitting continuous pressure waves. The electrokinetic signals generated are detected and the signal amplified and processed to measure the porous rock properties.