公开(公告)号：US20240427043A1

公开(公告)日：2024-12-26

申请号：US18762513

申请日：2024-07-02

Applicant: Chengdu University of Technology

Inventor： Yuyong YANG ,  Li YOU ,  Chuan LUO ,  Zhengyang WANG ,  Huailai ZHOU

IPC: G01V1/30

Abstract: A geological structure characterization method based on a seismic velocity signal and a seismic acceleration signal is provided. The seismic acceleration signal and the seismic velocity signal are acquired and normalized. Constant-phase wavelet and minimum-phase wavelet extraction or mixed-phase wavelet extraction is performed. In the constant-phase wavelet and minimum-phase wavelet extraction, a first minimum-phase wavelet is extracted based on the seismic velocity signal, and a constant-phase wavelet is extracted based on the seismic acceleration signal, and converted to a second minimum-phase wavelet. A residual between the first minimum-phase wavelet and the second minimum-phase wavelet is calculated. If the residual is greater than a preset threshold, the constant-phase wavelet extraction is performed again, otherwise, the first minimum-phase wavelet and the constant-phase wavelet are output.

公开(公告)号：US20230204808A1

公开(公告)日：2023-06-29

申请号：US17899677

申请日：2022-08-31

Applicant: Chengdu University of Technology

Inventor： Yuyong YANG ,  Qiaomu QI ,  Huailai ZHOU ,  Haoqing HUANG

IPC: G01V1/30 ,  G01V1/18

CPC classification number: G01V1/30 ,  G01V1/181 ,  G01V2210/165 ,  G01V2210/144

Abstract: A method and device determine seismic wave information, and a computer readable storage medium implements a method for determining seismic wave information. According to the solution, the method includes determining shallow and deep geophones from top to bottom in a vertical depth direction; determining, according to horizontal component signals acquired by each of the shallow geophones and a preset function, a polarization direction of the horizontal component signal acquired to obtain an azimuth of the shallow geophone; determining, according to an event inclination angle of a scalar signal in horizontal component signals acquired by each of the deep geophones, and a correlation between the deep geophone and a forward adjacent geophone in horizontal component signal based on the event inclination angle, an azimuth of the deep geophone; and determining, according to the horizontal component signals and the azimuth of each of geophones, a radial and a tangential component of the target seismic wave.