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:
Aug. 29, 1989
Filed:
Apr. 01, 1988
Jacques Cretin, Le Chesnay, FR;
Jean-Francois Therond, Neuilly S/Seine, FR;
Daniel Saussier, Aubergenville, FR;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
A device is provided for acquiring data coming from sensors distributed in several probes which may be anchored in a well or borehole and transmission thereof to a central control and recording system, including a remote control assembly for checking operating parameters. An acquisition apparatus includes a main multiplexer for seismic channels and an auxiliary multiplexer. The control assembly includes different modules delivering signals indicative of the position of the anchorage arms, of the operating temperature, of the power supply voltage, etc, means for testing the sensors and the seismic channels, and means for detecting any malfunction in the advance of the probes along the borehole. Different lines connected to the auxiliary multiplexer transmit the signals delivered by the control assembly.