Multi-interval seismic line cable system for distributed electronics
First Claim
1. An apparatus for collecting seismic data, comprising:
- a cable section having at least two takeouts at selected locations along said cable section;
at least one string data module attachable to one of said takeouts, wherein said string data module includes electronics for transmitting data through said cable section;
a first sensor string having one end attached to said string data module; and
at least one sensor attached to said sensor string for generating seismic data for transmission through said string data module and said cable section.
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Abstract
A system for gathering and recording seismic data. The system provides cable sections having takeouts at predetermined locations for connection to a string data module and attached sensor string. Additional data strings can be connected to vary the sensor orientation and spacing at different positions within a seismic array. Data is collected by sensors attached to each sensor string and is transmitted through the corresponding string data module and to an intermediate data manager. The data is transmitted at a high delivery rate to a master recording unit. Transverse data managers can be connected in large arrays between intermediate data managers and the master recording unit to provide additional control or data processing attributes, and local recorders can provide data processing and transmission attributes before the data is transmitted to the master recording unit. The system architecture contains multiple levels of data paths each having successively higher data rates. Multiples of lower paths feed into the higher paths and multiples of these paths feed into successively higher data paths. Each level of the data path architecture can stand alone such that each level provides line transmission functions asynchronously to the other levels.
31 Citations
20 Claims
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1. An apparatus for collecting seismic data, comprising:
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a cable section having at least two takeouts at selected locations along said cable section;
at least one string data module attachable to one of said takeouts, wherein said string data module includes electronics for transmitting data through said cable section;
a first sensor string having one end attached to said string data module; and
at least one sensor attached to said sensor string for generating seismic data for transmission through said string data module and said cable section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for collecting seismic data, comprising:
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a plurality of cable sections each having at least two takeouts at selected locations along said cable sections;
a plurality of string data modules each attachable to selected takeouts, wherein each string data module includes electronics for transmitting data through said corresponding cable section;
a sensor string having one end attached to each string data module, wherein each sensor string includes at least one sensor for generating seismic data for transmission through said corresponding string data module and cable section; and
an intermediate data manager linked with said cable sections for receiving said data. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification