An information extraction method for interactive analysis of multi-wavelet atomic dictionary
An atomic dictionary and information extraction technology, applied in seismic signal processing and other directions, can solve the problems of lack of manual interaction, limited selection method, single method, etc., to achieve the effect of easy comparative analysis, fine and accurate control
Active Publication Date: 2018-11-09
北京天工新源科技有限公司
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[0003] The current common wavelet decomposition and reconstruction methods are generally only reconstructed by frequency parameters, reconstructing data through a given frequency range, lacking graphic interaction, and selecting atoms (ie wavelets) in a multi-parameter way. The method is relatively simple. The method is relatively limited, and there is basically no human interaction
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[0037] The invention provides an information extraction method for interactive analysis of a multi-wavelet atom dictionary, which decomposes the seismic data, and intersects the atomic representation parameters (energy, frequency and phase, etc.) of the decomposed wavelets (that is, atoms), which can The decomposed atoms are displayed in the figure on the changing rules of the two intersecting parameters, which facilitates the analysis of the wavelet-decomposed data of well points and seismic section data, and provides a manual interactive method. It should be pointed out that the specific embodiments described above can enable those skilled in the art to understand the invention more comprehensively, but do not limit the invention in any way. Therefore, although this specification has described the invention in detail with reference to the accompanying drawings and embodiments, those skilled in the art should understand that the invention can still be modified or equivalently ...
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The invention provides an information extraction method for multiwavelet atom dictionary transactional analysis. Through the intersection of multiple characteristic parameters of wavelet atom (energy, frequency, phase, etc.), the law and variation of the wavelet decomposition atom is showed by pairwise intersection diagram. A variety of manual interactive modes are easy to use, and data reconstruction and frequency spectrum are displayed in real time for the convenience of comparative analysis. The atom dictionary database is applied to the reconstruction of the whole seismic data volume for more favorable seismic data volume better reflecting the geological characteristics such as reservoir hydrocarbons. Otherwise, taking the known borehole-side trace as the basis, according to the well logging data and geological drilling data, the atoms closely related to reservoir and oil gas are selected to reconstruct the data related to reservoir and oil-gas possibility, letting the reconstructed data can better reflect the abnormality characteristics of reservoir and oil gas to provide an effective basis for reservoir prediction and hydrocarbon potential detection.
Description
technical field [0001] The invention relates to wavelet decomposition and reconstruction technology, in particular to an information extraction method for interactive analysis of multi-wavelet atomic dictionaries. Background technique [0002] The matching pursuit wavelet decomposition algorithm uses the basis function that best matches the waveform of the signal to be decomposed to perform wavelet decomposition on the signal to be decomposed, so as to extract the hidden information features. This is the essence of the idea of waveform matching and pursuit. The signal is decomposed into a linear combination of a set of basis functions. The signal to be decomposed is subjected to wavelet decomposition. With the improvement of computer performance, matching pursuit wavelet decomposition algorithm has been widely used in seismic exploration. It decomposes seismic data into seismic wavelets of different shapes, different energies, different frequencies and different phases. ...
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IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 李治国李飞孔选林樊佳芳龚福秀
Owner 北京天工新源科技有限公司