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. 09, 2003
Filed:
Jan. 29, 2002
Applicant:
Inventor:
Guy Vachon, Austin, TX (US);
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/712 ; E21B 4/701 ; G01V 3/00 ;
U.S. Cl.
CPC ...
E21B 4/712 ; E21B 4/701 ; G01V 3/00 ;
Abstract
In order to ensure that at least some of the tools ( - ) to - ) in a string of tools that is permanently installed in an oil well ( ) are kept in operation even in the event of a localized fault, the link ( ) interconnecting the tools and a surface installation ( ) is subdivided into segments by switch members ( ). More precisely, a switch member is associated with each tool. In addition, the link ( ) forms a loop with both ends thereof being connected to the surface installation ( ).