Fossil Energy
Low Frequency Seismic and Infrasound Detection of Geo-Pressure Transition Zones
Related Patents: 7283422 ; 7079449
Contact: Jason Stolworthy
Phone: (208) 526-5976
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The invention comprises methods for determining the existence and characteristics of a gradational pressurized zone within a subterranean formation. One embodiment involves employing an attenuation relationship between a seismic response signals and increasing wavelet wavelength, which relationship may be used to detect a gradational pressurized zone and/or determine characteristics thereof. In another embodiment, a method for analyzing data contained within a response signal for signal characteristics that may change in relation to the distance between an input signal source and the gradational pressurized zone is disclosed. In a further embodiment, the relationship between response signal wavelet frequency and comparative amplitude may be used to estimate an optimal wavelet wavelength or range of wavelengths used for data processing or input signal selection. Systems for seismic exploration and data analysis for practicing the above-mentioned method embodiments are also disclosed.