US Patent:
20080291782, Nov 27, 2008
Inventors:
Norm Warpinski - Cypress TX, US
Julie Shemeta - Highlands Ranch CO, US
Shawn Maxwell - Calgary, CA
Craig Funk - Calgary, CA
Assignee:
PINNACLE TECHNOLOGIES, INC. - San Francisco CA
International Classification:
G01V 1/16
G01V 1/28
Abstract:
An apparatus comprising a stacked node configured to be positioned within a subterranean opening and comprising a plurality of separate receivers oriented end-to-end and each configured to independently detect subterranean activity, and a transmission medium configured to transmit data from the stacked node, wherein the data is representative of subterranean activity detected by the plurality of separate receivers.