Digital elevation model for use with seismic data acquisition systems
First Claim
1. An apparatus for seismic data acquisition that is used with a server having a database that includes Z-coordinates for a selected geographical area of interest, wherein each Z-coordinate is a value relative to a known vertical datum, the apparatus comprising:
- a seismic device having a memory configured to store detected seismic data and a Z-coordinate; and
a navigation tool having a memory module containing a set of Z-coordinates, associated with corresponding X and Y coordinates, the navigation tool being configured to;
(i) communicate with the server to receive the set of Z-coordinates, (ii) select the Z-coordinate based on a GPS determined X and Y coordinate, and (iii) transmit the Z-coordinate to the seismic device.
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Accused Products
Abstract
A seismic data acquisition system includes a controller, a plurality of sensor stations and a plurality of seismic sources. Each sensor station includes a sensor coupled to the earth for sensing seismic energy in the earth. The sensor provides a signal indicative of the sensed seismic energy and a recorder device co-located with the sensor unit that receives and stores the signals. A communication device is co-located with the sensor station and provides direct two-way wireless communication with the central controller. In one embodiment, in-field personnel determine elevation values, or Z values, for the sensor stations and seismic source by accessing a digital elevation model or a look-up table based on the digital elevation model. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
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Citations
16 Claims
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1. An apparatus for seismic data acquisition that is used with a server having a database that includes Z-coordinates for a selected geographical area of interest, wherein each Z-coordinate is a value relative to a known vertical datum, the apparatus comprising:
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a seismic device having a memory configured to store detected seismic data and a Z-coordinate; and a navigation tool having a memory module containing a set of Z-coordinates, associated with corresponding X and Y coordinates, the navigation tool being configured to;
(i) communicate with the server to receive the set of Z-coordinates, (ii) select the Z-coordinate based on a GPS determined X and Y coordinate, and (iii) transmit the Z-coordinate to the seismic device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for determining a Z value of a seismic device in a seismic survey spread, comprising:
a navigation tool having a memory module loaded with a subset of Z values selected from a predetermined Z value database, the memory module being searchable to retrieve the Z value, wherein each Z value of the subset of Z values is a value relative to a known vertical datum and is associated with a corresponding X and Y value, wherein the navigation tool is configured to;
(i) communicate with a processor to obtain the subset of Z-values, (ii) select a Z-value based on a GPS determined X and Y coordinate, and (iii) transmit the Z-value to the seismic device.- View Dependent Claims (10, 11, 12, 13, 14)
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15. A computer-readable medium that is accessible to a processor for executing instructions contained in a computer program embedded on the computer-readable medium, wherein the computer program comprises:
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a set of instructions to receive Z values from a digital elevation (DEM) database in a server, wherein each Z value is a value relative to a known vertical datum and is associated with a location parameter; a set of instructions to receive the location parameter from a location sensor in a navigation tool; a set of instructions to select a Z value for the received location parameter; and a set of instructions to transmit the selected Z value from the navigation tool to a seismic device. - View Dependent Claims (16)
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Specification