Scanning signal computing method and device
A scanning signal and calculation method technology, applied in the field of geophysical exploration, can solve the problems of strong interference of seismic data near shot and unfavorable seismic data processing, etc., achieve the effect of less frequency overlap, facilitate processing, and reduce the effect of near shot interference
Active Publication Date: 2017-08-04
BC P INC CHINA NAT PETROLEUM CORP +1
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The same scanning signal is used to simultaneously excite multiple vibrators, and there is frequency overlap between different vibrators, which often makes the acquired seismic data have strong interference from adjacent shots, which is not conducive to the processing of subsequent seismic data.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The implementations are only some of the implementations of the present application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0032] An embodiment of the present application provides a scan signal calculation method. see figure 1 . The embodiment of this application may include the following steps.
[0033] Step S11: Divide the designated frequency bands in the work area to obtain a first frequency band set.
[0034] In this embodiment...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The embodiments of the application disclose a scanning signal computing method and a device. The method comprises the following steps: dividing a specified band of a work area to get a first band set, wherein the first band set includes multiple sequentially adjacent first bands; for each first band in the first band set, edging the first band, and taking the edged first band as a second band in a second band set; determining an edging window function and edging time length corresponding to each second band in the second band set; and for each second band in the second band set, computing the scanning signal corresponding to the second band based on the edging window function and the edging time length corresponding to the second band so as to give the scanning signals corresponding to the second bands in the second band set to multiple vibroseises in the work area and excite the multiple vibroseises in the work area synchronously.
Description
technical field [0001] The present application relates to the technical field of geophysical prospecting, in particular to a scanning signal calculation method and device. Background technique [0002] At present, vibroseis seismic exploration and acquisition technology is the development trend of land seismic exploration and acquisition technology. Compared with explosive vibrator, vibroseis has many advantages such as controllable frequency and energy, safety and environmental protection, low cost, and high construction efficiency, so it is more and more popular in various fields. Sought after by big oil geophysical oil companies. [0003] The vibroseis excitation is to excite a series of single-frequency signals with frequency changes through the seismic source, which are reflected back to the surface and recorded by the geophone, and then the recorded signals are correlated with the theoretical reference signals to obtain seismic data. In the process of using vibroseis ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): G01V1/02
CPCG01V1/02
Inventor 雷云山唐东磊王建锋潘英杰冯小翠赵君
Owner BC P INC CHINA NAT PETROLEUM CORP