发明名称 |
Spectrally-shaped air gun arrays |
摘要 |
The invention is a method of shaping the spectrum of a seismic source signature. Energy is concentrated in the range below a selected frequency and attenuated in the range above the selected frequency by activating a plurality of sources asynchronously within a time window of selected duration. In a preferred embodiment, the frequency spectrum is smoothed by firing a second plurality of sources within a second time window having a time delay from the first time window equal to substantially the time between the initial firing of a source and the first positive zero-crossing of the signature.
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申请公布号 |
US4739858(A) |
申请公布日期 |
1988.04.26 |
申请号 |
US19870020549 |
申请日期 |
1987.03.02 |
申请人 |
WESTERN ATLAS INTERNATIONAL, INC. |
发明人 |
DRAGOSET, JR., WILLIAM H. |
分类号 |
G01V1/02;(IPC1-7):G01V1/38;G01V1/08 |
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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