Wireless Seismic, Inc.

Douglas B Crice

Keith Elder

Steven Kooper

David Elam

Mihai Beffa

Roy Kligfield

Calvin Day

Kevin Rose

Kip Ingram

Systems and methods are provided for acquiring seismic data using a wireless network and a number of individual data acquisition modules that are configured to collect seismic data and forward data to a central recording and control system. In one implementation, a number of remote modules are arranged in lines. Base station modules receive information from the lines and relay the information to a central control and recording system. Radio links operating on multiple frequencies are used by the modules. Dynamic multiplexing technique may include advancing one or more modules in a seismic array through a multiplexing signature sequence in successive transmission periods. The multiplexing signature sequence may be random or pseudo-random. A shared multiplexing signature sequence may be used at all the modules in the seismic array. Modules belonging to a common collision domain may operate out of phase with respect to the shared multiplexing signature sequence.

Wireless exploration seismic system

A multimode seismic survey system is disclosed where seismic information for a given seismic survey is read out by different seismic units using different modes. Such multimode systems encompass hybrid arrays where information is read out via different output modes for a single seismic event, and other multimode arrays where seismic information is read out via different modes for different seismic events. The modes utilized in such arrays may include wireless, nodal and/or cable modes. The multimode arrays can be implemented using multimode seismic units or single mode seismic units. In any event, the multimode arrays can be utilized to achieve a combination of advantages associated with the different readout modes or to address any of various multimode mode contexts in relation to seismic surveys.

Multimode seismic survey system

A multimode seismic unit can selectively operate in any one or more of multimode readout modes. In one embodiment, a multimode seismic unit () includes a physical mode selector switch (). The mode selector switch () allows for manual selection of output modes including wireless, nodal, dual mode or automatic mode selection. The unit () further includes an antenna () for RF transmissions and a data port () for uploading data in a nodal mode. The multimode unit can be used to implement a variety of single mode and multimode seismic arrays.

Multimode seismic unit and associated methodology

Systems and methods for seismic data acquisition utilizing wireless modules to perform real time data read out. The wireless modules may be assigned a shared multiplexing sequence through which each module advances in successive transmission periods. Wireless modules belonging to a shared collision domain may be operated out of phase from one another with respect to the shared multiplexing signature sequence. As such, a dynamic multiplexing regime may be implemented. The shared multiplexing signature sequence may include, among others, a plurality of different frequencies, a plurality of different codes, or a plurality of different discrete time periods.

Systems and methods for seismic data acquisition

Systems and methods for seismic data acquisition employing a dynamic multiplexing technique. The dynamic multiplexing technique may include advancing one or more modules in a seismic array through a multiplexing signature sequence in successive transmission periods. The multiplexing signature sequence may be random or pseudo-random. A shared multiplexing signature sequence may be used at all the modules in the seismic array. As such, modules belonging to a common collision domain may operate out of phase with respect to the shared multiplexing signature sequence.

Systems and methods are provided for acquiring seismic data using a wireless network and a number of individual data acquisition modules that are configured to collect seismic data and forward data to a central recording and control system. In one implementation, a number of remote modules () are arranged in lines. Base station modules () receive information from the lines and relay the information to a central control and recording system (). Radio links operating on multiple frequencies (F-F) are used by the modules (). For improved data transfer rate, radio links from a remote module () leap past the nearest remote module to the next module closer to the base station.

Growing community of inventors

Grass Valley, CA, United States of America

Douglas B Crice