METHOD AND SYSTEM FOR TRANSMISSION OF SEISMIC DATA

摘要

The transmission system combines a self-contained, wireless seismic acquisition unit and a wireless, line of site, communications unit to form a plurality of individual short-range transmission networks and also a mid-range, line of sight transmission network. Each seismic unit has a power source, a short-range transmitter/receiver disposed within a casing and a geophone disposed within the casing. Each wireless communications unit is formed of an elongated support structure on which is mounted an independent power source, mid-range radio transmitter/receiver; and a short-range transmitter/receiver configured to wirelessly communicate with the short-range transmitter/receiver of the acquisition unit. Preferably, when deployed, the acquisition unit is buried under the surface of the ground, while the wireless communications unit is positioned in the near vicinity of the buried unit so as to vertically protrude above the ground. The acquisition unit and the wireless communications unit communicate by short-range transmissions, while the wireless communications unit communicates with other seismic acquisition systems using mid-range radio transmission. When multiple seismic acquisition unit/wireless communications units are deployed in an array, the system can pass collected seismic and quality control data in relay fashion back to a control station and/or pass timing and control signals out to the array.

主权项

1. A method for transmitting seismic data via seismic data acquisition units, comprising:
deploying, in a marine environment, a seismic data acquisition unit comprising a first short-range transceiver and a geophone; deploying a first wireless communication unit comprising a first radio transceiver and a second short-range transceiver to wirelessly communicate with the first short-range transceiver; establishing, using the first short-range transceiver and the second short-range transceiver, a first wireless link between the first wireless communication unit and the seismic data acquisition unit utilizing first wireless signals; establishing a second wireless link between the first wireless communication unit and a second wireless communication unit utilizing second wireless signals, the second wireless link different than the first wireless link; transmitting, by the seismic data acquisition unit, the seismic data to the first wireless communication unit via the first wireless link; and transmitting, by the first wireless communication unit via the second wireless link, at least some of the seismic data received from the seismic data acquisition via the first wireless link different from the second wireless link.