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. 20, 2007
Filed:
Sep. 17, 2003
Dominique Benimeli, Chatillon, FR;
Cyrille Levesque, Abu Dhabi, AE;
Donald Mckeon, Grosse Pointe Park, MI (US);
Dominique Benimeli, Chatillon, FR;
Cyrille Levesque, Abu Dhabi, AE;
Donald McKeon, Grosse Pointe Park, MI (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Body () for measuring the resistivity of a formation () surrounding a well () equipped with a lining (), comprising: a body () of a probe (), a set of three primary voltage measurement electrodes (ea, eb, ec), an upper electrode (ea) and a lower electrode (ec) and a central electrode (eb), two electrodes (In, In), an upper current injection electrode (In) and a lower current injection electrode (In) arranged on each side of the set of primary electrodes, characterized in that it also comprises, two secondary voltage measurement electrodes () arranged on each side of the set of primary electrodes (ea, eb, ec), and between the two current injection electrodes (In, In), the spacing between a secondary electrode () and the closest primary end electrode (ea, ec) being more than 1.5 times the spacing between the primary electrodes (ea, eb, ec).