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. 16, 2001
Filed:
Dec. 14, 1999
Patrick Meynier, rue des Garennes, FR;
Institute Francais du Petrole, Cedex, FR;
Abstract
A system intended for permanent installation of measuring sondes against the inner wall of a pipe (,) such as a well or a tube. Measuring sondes (,) are respectively associated with coupling devices (,) that are brought to their respective coupling points in the pipe by means of a tube (,) positioned by off-centering devices (,) for example. Each coupling device (,) comprises a flexible element (,) carrying sonde (,), that is deformed to a set back position where it is immobilized by a lock (,) so as to allow displacement thereof along pipe (,). In order to release flexible blades (,), a sufficient overpressure allowing to push back the piston of a jack (,) whose cylinder communicates at one end with the inside of pipe (,) is established. In this expanded position, it immobilizes coupling device (,) and presses sonde (,) against pipe (,) while mechanically decoupling it from tube (,). Tube (,) can possibly be withdrawn if it does not serve another purpose. The system can be applied to long-time (notably seismic) monitoring of an underground zone under development; the tube used for putting the sondes into place can be a production tubing.