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. 07, 1993
Filed:
Mar. 11, 1992
Institut Francais du Petrole, Rueil Mamaison, FR;
Abstract
A method of installing a reception device in a cased well at an optimum depth for surveying a formation under production or a localized part thereof and a source of acoustic waves at the surface or in a well. A placing or setting of the device is achieved by associating a plurality of acoustic wave reception units with a tubing lowered into the well and by applying the respective units against the pipe casing of the well by arms and springs or by including the reception units in sondes which are mechanically uncoupled from the tubing during the stages of use, with the reception device being easily moved by displacing the tubing during, for example, interruptions in the production of effluents.