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:
Jan. 30, 2001
Filed:
Oct. 09, 1998
Applicant:
Inventor:
Christian Wittrisch, Rueil Malmaison, FR;
Assignee:
Institut Francis du Petrole, Rueil-Malmaison, FR;
Primary Examiner:
Int. Cl.
CPC ...
E21B 2/314 ; E21B 4/701 ;
U.S. Cl.
CPC ...
E21B 2/314 ; E21B 4/701 ;
Abstract
A system for displacing instruments in a pipe including a portion that is greatly inclined to the vertical. The system includes a set of instruments mechanically linked, by means of an extension, to a first end of electrically-powered displacement device. The extension is a section of a composite, semi-rigid rod that can be wound around a drum and comprises at least one electric conductor. The present invention also relates to a method for implementing the system. Application is to greatly inclined oil wells and to lateral holes.