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High fidelity vibratory source seismic method for use in vertical seismic profile data gathering with a plurality of vibratory seismic energy sources
High fidelity vibratory source seismic method for use in vertical seismic profile data gathering with a plurality of vibratory seismic energy sources
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机译:用于具有多个振动地震能量源的垂直地震剖面数据采集的高保真振动源地震方法
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摘要
A method for recording and pre-processing vertical seismic profile high fidelity vibratory seismic data includes the steps of measuring the motion of the vibrator which is related to the vibrator applied force times a transfer function of minimum phase, causal, linear system relating the actual vibrator output with the measured vibrator motion, separating signals according to the generating source of each, determining a ratio by dividing the vibratory seismic data by the measured motion of the vibrator to remove the unknown applied force leaving the earth reflectivity times a time derivative divided by a minimum phase function, minimum phase band pass filtering the resulting ratio and performing minimum phase deconvolution to remove the time derivative divided by the transfer function of minimum phase.
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