| US 7,602,668 B2 | ||
| Downhole sensor networks using wireless communication | ||
| Kenneth Kin-nam Liang, New Milford, Conn. (US); Jacques Jundt, Newton, Mass. (US); and Philippe Salamitou, Paris (France) | ||
| Assigned to Schlumberger Technology Corporation, Ridgefield, Conn. (US) | ||
| Filed on Nov. 03, 2006, as Appl. No. 11/556,332. | ||
| Prior Publication US 2008/0106972 A1, May 08, 2008 | ||
| Int. Cl. G01V 1/00 (2006.01) | ||
| U.S. Cl. 367—25 | 48 Claims |
| 1. A wireless subterranean sensor network comprising:
at least one sensor, the at least one sensor including an elastodynamic transducer such that the at least one sensor is positioned
in an outside of a well casing wherein the well casing is made of a material from the group consisting of one of a conductive
material or a ferro-magnetic material or some combination thereof;
a hub having a plurality of transducers arranged in an array capable of adjustable focus or adjustable directional emission;
and
wherein a link is formed between the at least one sensor and the hub by elastodynamic waves through at least one wall of the
well casing such that the elastodynamic waves are adjustably controllable in one of focus, direction or both.
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