发明名称 |
Method for use in marine seismic data gathering |
摘要 |
A method and apparatus for use in marine seismic data gathering comprises a vessel (1) is equipped for deploying and retrieving trailer cables and tows a plurality of cables (3) which are provided with at least one array of transmitters (5), which array constitutes a point source for a transmitter, and an acoustic cable, over the region to be investigated. The transmitter cables (3) are caused to become distributed laterally in relation to the tow direction, the distance between them, the firing power and firing timing being controlled from the vessel in accordance with data collected previously regarding the nature of the sea bed. The point source-formed transmitter arrays can be distributed both laterally and longitudinally in relation to the tow direction. The transmitter cables (3) are distributed laterally with the aid of otterboards (8).
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申请公布号 |
US4506352(A) |
申请公布日期 |
1985.03.19 |
申请号 |
US19810317880 |
申请日期 |
1981.11.03 |
申请人 |
GEOPHYSICAL COMPANY OF NORWAY A/S |
发明人 |
BRANDSAETER, HELGE;EIMSTAD, OLAV |
分类号 |
G01V1/02;G01V1/38;(IPC1-7):G01V1/38 |
主分类号 |
G01V1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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