Communications: electrical – Wellbore telemetering or control – Using a specific transmission medium
Reexamination Certificate
2006-12-19
2006-12-19
Edwards, Jr., Timothy (Department: 2612)
Communications: electrical
Wellbore telemetering or control
Using a specific transmission medium
C340S854900, C403S053000
Reexamination Certificate
active
07151465
ABSTRACT:
A method of transmitting information between a salt-cavern and the surface of the ground, the cavern being drilled in geological formation beds and being connected to the surface via an access borehole cased at least in part by metal tubes and presenting at least one safety valve, the method consisting in suspending a string of tools from a hanger system positioned in the access borehole downstream from the safety valve and in electrical contact with the metal tubes, the string of tools including at least one measuring device connected to the hanger system via a first segment of conductor cable and an information transceiver operating by means of waves and connected to the measuring device via a second segment of conductor cable, the transceiver being positioned in such a manner as to be in contact with structural means linked to the cavern; and establishing coupling between the transceiver and the structural means, in order to enable information to be transmitted between the measuring device and the surface by propagating waves via the structural means.
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Barbot Jean-Michel
Hafon Denis
Lebriere Bruno
Pichery Thierry
Sirieix Christian
Edwards, Jr. Timothy
Gaz de France
Geoservices
Weingarten Schurgin, Gagnebin & Lebovici LLP
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