发明名称 |
METHOD FOR HIGH-RESOLUTION SEISMIC RECORDING USING DETECTORS PLANTED AT SHALLOW DEPTHS |
摘要 |
A method for high-resolution seismic recording with increased bandwidth using detectors planted at shallow depths below the earth's surface. In one embodiment, an optimum depth where the amplitudes of high frequency signals increase relative to that of the noise during high-resolution recording is determined, geophones are then planted at that optimum depth and signals are recorded at that depth. To find this optimum depth, detectors are planted at various depths below the earth's surface in order to record the the signals at those various depths. The frequency spectra for each detected signal is generated and a velocity profile of the depths covered by the detectors is also generated from the signals. The bandwidth of the frequency spectra and the velocity profile are used to determine a depth for planting the detectors that is closer to the earth's surface than the depths previously considered.
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申请公布号 |
CA2053113(C) |
申请公布日期 |
1997.03.18 |
申请号 |
CA19912053113 |
申请日期 |
1991.10.09 |
申请人 |
EXXON PRODUCTION RESEARCH COMPANY |
发明人 |
RICE, JAMES ALLEN;KROHN, CHRISTINE ELIZABETH;HOUSTON, LOUIS MARCUS |
分类号 |
G01V1/42;(IPC1-7):G01V1/30 |
主分类号 |
G01V1/42 |
代理机构 |
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地址 |
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