Fremgangsmåte for å få tilbake data som er innsamlet og lagret nede i en brönn, via en akustisk bane, samt apparat for utförelse av fremgangsmåten

摘要

In a well (10) in the production or in clinical trials, the recovery of data acquired and stored in an apparatus of the base (16), placed in the bottom of a train of rods (12) is below a valve of the test (20), is carried out directly in the form of acoustic signals between the apparatus of the base (16) and a tool of the interface (24). For this purpose, an acoustic coupling is made between the tool (24) and the set of rods (12) and of the electroacoustic transducers are provided in the tool and in the apparatus of the base (16). The control commands are transmitted in the opposite direction, also in the form of acoustic signals, in particular in order to trigger the recovery of data. The transmission of data and commands between the tool (24) and the apparatus of the surface (22) is carried out by any known means, for example, in the form of electrical signals conveyed by a cable (26).