A Calculation Method of Seismic Wave Travel Time
A travel time and calculation method technology, applied in the field of seismic exploration data processing, can solve the problems of the first arrival time gap, low efficiency, complicated travel time operation, etc., to achieve the effect of efficient calculation and simple operation
Active Publication Date: 2022-07-05
YANGTZE UNIVERSITY
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[0004] The disadvantage of the existing technology is that the travel time calculated by the above method is complicated to operate and the efficiency is not high; the calculation of the travel time is not accurate, and there is still a certain gap with the first arrival time
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[0051] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0052] figure 1 A schematic flowchart of a method for calculating the travel time of seismic waves according to an embodiment of the present invention; such as figure 1 As shown, S1, determine the basic form of the basic travel time calculation formula; the basic travel time calculation formula is an expression based on the Taylor ...
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The invention relates to the technical field of seismic exploration data processing, in particular to a method for calculating travel time of seismic waves, which includes the following steps: S1, determining the basic form of a basic travel time calculation formula; S2, approximating travel time according to the Taylor series principle and continuous fractional formula The time square formula performs a higher-order approximation on the basic travel time calculation formula; S3, performs simultaneous power reduction processing on the 4th power and the 6th power of the offset in the higher-order basic travel time calculation formula, Output travel time; in the embodiment of the present invention, a higher order approximation is performed on the basic travel time calculation formula, and then the higher order basic travel time calculation formula is reduced to the power to process the output travel time; the operation is simple and the operation is efficient.
Description
technical field [0001] The invention relates to the technical field of seismic exploration data processing, in particular to a seismic wave travel time calculation method. Background technique [0002] Seismic wave travel time plays an important role in seismic data processing; while some formulas strive for innovation, they add restrictions on the number of rays involved in the calculation, reflectors of different shapes, etc., which will have an impact on subsequent applications to actual seismic data. Therefore, how to obtain a more accurate and effective seismic wave travel time is one of the key contents that we need to study at present. [0003] Currently, the most widely used methods for calculating travel time include the shift hyperbolic method and the generalized time difference approximation method, all of which can effectively calculate the travel time. [0004] The disadvantage of the prior art is that the travel time calculated by the above method is complicat...
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IPC IPC(8): G01V1/28
CPCG01V1/28
Inventor 魏建孙祥娥王文松梁晏翔
Owner YANGTZE UNIVERSITY