A method and device for acquiring seismic sedimentary body information
An acquisition method and acquisition device technology, applied in seismic signal processing, etc., can solve problems such as difficult depositional morphology and depositional thickness
Active Publication Date: 2017-12-19
PETROCHINA CO LTD
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[0005] Embodiments of the present invention provide a method and device for acquiring seismic sedimentary body information, so as to solve the problem in the prior art that it is difficult to accurately determine the sedimentary form and sedimentary thickness at the same time by using seismic facies analysis technology and seismic sedimentology analysis technology
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[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0070] Such as figure 1 As shown, a method for acquiring seismic sedimentary body information provided by an embodiment of the present invention includes:
[0071] Step 101. Acquire seismic trace data, and perform variable-speed generalized S-transformation on the seismic trace data according to a time window information to generate time-frequency spectrum data corresponding to the seismic trace data.
[0072] Step 102, read the peak frequency and the peak am...
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The invention provides a method and device for acquiring seismic sedimentary body information, which relates to the technical field of petroleum exploration. The method includes: acquiring seismic trace data, and performing variable-speed generalized S-transformation on the seismic trace data according to a time window information to generate corresponding seismic trace data. The time-spectrum data; read the peak frequency and the peak amplitude corresponding to the peak frequency from the time-spectrum data, respectively form the peak frequency data volume and the peak amplitude data volume; extract the thickness information of the sedimentary body according to the peak frequency data volume, and The frequency information of the peak frequency data volume is displayed on the color scale; the shape information of the sedimentary body is extracted according to the peak amplitude data volume, and the amplitude information of the peak amplitude data volume is displayed on the two-dimensional color scale. The invention can solve the problem in the prior art that it is difficult to accurately determine the sedimentary form and the sedimentary thickness simultaneously by using the seismic facies analysis technology and the seismic sedimentology analysis technology.
Description
technical field [0001] The invention relates to the technical field of petroleum exploration, in particular to a method and device for acquiring seismic sediment body information. Background technique [0002] At present, with the development of seismic technology, people begin to use seismic data to study strata and sedimentary facies, especially the emergence of three-dimensional seismic data, which provides great convenience for people to use seismic waveforms and attributes to study sedimentation, and has successively developed the seismic Facies analysis techniques and seismic sedimentology analysis techniques. [0003] Seismic phase analysis technology is to analyze the characteristic parameters such as seismic reflection shape, internal structure of seismic reflection, top-bottom contact relationship, amplitude, apparent period, continuity, smoothness and lateral variation of reflection characteristics of the target layer in the study area, and obtain A seismic facie...
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IPC IPC(8): G01V1/28
Inventor 苏明军倪长宽崔向丽梁苏娟
Owner PETROCHINA CO LTD