Robbin B. Adams - Richmond TX, US Bhasker Vajapeyam - Sugar Land TX, US Jesus Eduardo Prado - Sugar Land TX, US Sridhar Vajapey - San Jose CA, US Paul E. Carroll - Houston TX, US James Michael Hallaman - Sugar Land TX, US
International Classification:
G01V 1/22 G06F 19/00 G01V 1/16
US Classification:
702 14
Abstract:
A recording system and method for conducting seismic surveys including cordless battery-operated digital recorders, each employing an integral global positioning system receiver that is only periodically enabled for the purpose of establishing synchronized acquisition clock signals among all the recorders. The satellite receiver adjustment cycle is varied depending on past acquisition clock accuracy and temperature changes. A time stamp is recorded with the digitized seismic data in non-volatile memory. The memory is sized to allow extended periods of operation. Each recorder preferably includes a low-power system timer that may be used as a timer to remotely turn on and off the recorders according to a pre-programmed schedule to conserve power when the system is not in use. Electronic components are idled or de-energized when not needed.
Low-Power Satellite-Timed Seismic Data Acquisition System
- Houston TX, US Bhasker Vajapeyam - Sugar Land TX, US Jesus Eduardo Prado - Sugar Land TX, US Paul E. Carroll - Houston TX, US James Michael Hallaman - Sugar Land TX, US
Assignee:
Geospace Technologies Corporation - Houston TX
International Classification:
G01V 1/00
US Classification:
702 14, 73 185
Abstract:
A recording system and method for conducting seismic surveys including cordless battery-operated digital recorders, each employing an integral global positioning system receiver that is only periodically enabled for the purpose of establishing synchronized acquisition clock signals among all the recorders. The satellite receiver adjustment cycle is varied depending on past acquisition clock accuracy and temperature changes. A time stamp is recorded with the digitized seismic data in non-volatile memory. The memory is sized to allow extended periods of operation. Each recorder preferably includes a low-power system timer that may be used as a timer to remotely turn on and off the recorders according to a pre-programmed schedule to conserve power when the system is not in use. Electronic components are idled or de-energized when not needed.