Hydrocarbon detection method utilizing seismic data dynamic spectrum properties
The invention relates to a hydrocarbon detection method utilizing seismic data dynamic spectrum properties. According to the technical scheme, short time Fourier transform and a spectral smoothing method are used for obtaining the spectrum properties of an objective interval and three time windows b...
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| creator | ZHENG LING HAO JIALIANG SU YUN CAI QIXIN WANG GONGHUAI LI NING QIN GUANGSHENG QIN YUFU |
| description | The invention relates to a hydrocarbon detection method utilizing seismic data dynamic spectrum properties. According to the technical scheme, short time Fourier transform and a spectral smoothing method are used for obtaining the spectrum properties of an objective interval and three time windows before and after the objective interval, a trend analysis method is used for determining the variable quantity of the spectrum properties between the time windows to obtain the spectrum dynamic properties, and through correlation analysis after normalization of the spectrum dynamic properties and the actual drilled hydrocarbon reservoir thickness of the objective interval, hydrocarbon detection is carried out with an optimized hydrocarbon detection preponderant spectrum property. The three-time-window analysis method is used for obtaining the spectrum properties and dynamic changes of the properties of the objective interval and the adjacent time windows before and after the objective interval, seismic wave frequenc |
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| subjects | DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS MEASURING PHYSICS TESTING |
| title | Hydrocarbon detection method utilizing seismic data dynamic spectrum properties |
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