Method and device for detecting gas content of reservoir
A detection method and detection device technology, applied in the direction of measuring devices, geophysical measurement, instruments, etc., can solve the problems of low detection accuracy, improve accuracy, meet the requirements of high-precision reservoir gas-bearing detection, and accurately indicate the reservoir The effect of layer gas
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[0041] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0042] Embodiment of the method for detecting the gas content of the reservoir of the present invention
[0043] The reservoir gas-bearing property detection method of the present invention first performs empirical mode decomposition on the given seismic data to obtain its corresponding intrinsic mode section (IMF), and selects a suitable IMF section according to different seismic data qualities. Each record in the IMF profile is transformed by generalized S, and then superimposed to obtain the time-frequency profile, and then the time-frequency profile is frequency-divided to obtain high-frequency and low-frequency profiles, and the formation absorption profile is calculated, and the gas-bearing properties of the reservoir are identified according to the formation absorption profile . The implementation process of this method is as follows...
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