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Method for quickly digitalizing interpretation horizon of seismic paper profile

A technology for interpreting horizons and seismic papers, applied in seismic signal processing, etc., can solve problems such as interpreted horizon errors, unknown to users, and digital processing of horizon data, so as to improve accuracy, ensure accuracy and The effect of precision

Inactive Publication Date: 2012-11-21
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage of this method is that the paper profile may be deformed during scanning, and the interpreted horizon may have a large error, and the user may not know all this
[0003] In order to solve the above problems, Chen Shijun et al. put forward the "Seismic Paper Section Digitization Method and Application" in "Petroleum Geophysical Exploration, Volume 39, Issue 1, February 2004". digitized, but the layer data on the paper section cannot be digitized

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A method for quickly digitizing seismic paper section interpretation horizons, comprising the following steps:

[0020] a. Scan the old seismic paper section to obtain a raster image;

[0021] b. Open the seismic data corresponding to the seismic paper section, and overlay and position the scanned seismic paper section on the seismic data section;

[0022] c. Horizontal interpretation with reference to seismic paper profiles and seismic data profiles;

[0023] d. After the interpretation is completed, cancel the seismic paper profile, check the corresponding relationship between the horizon and the seismic data profile, and make minor adjustments to the horizon where there is an error in the interpretation;

[0024] e. Export the interpreted horizon data and complete the digitization of horizons.

Embodiment 2

[0026] A method for quickly digitizing seismic paper section interpretation horizons, comprising the following steps:

[0027] a. Scan the old seismic paper section to obtain a raster image;

[0028] b. Open the seismic data corresponding to the seismic paper profile, and overlay and position the scanned seismic paper profile on the seismic data profile; the overlapping alignment method adopts the two-point positioning method: according to the CDP and Time in the upper left corner of the seismic paper profile, and the CDP in the lower right corner CDP and Time overlap the seismic paper profile on the corresponding CDP and Time of the seismic data profile;

[0029] Since the scanned seismic paper section may be deformed, the display of the seismic paper section is set to a semi-transparent display mode, and the user can refer to the following seismic data section when interpreting according to the layers on the seismic paper section to ensure the accuracy and accuracy of the in...

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Abstract

The invention discloses a method for quickly digitalizing the interpretation horizon of a seismic paper profile. The method comprises the following steps of: scanning an old seismic paper profile to obtain a grating image; unpacking seismic data corresponding to the seismic paper profile, and positioning the scanned seismic paper profile on a seismic data profile in a stacking manner; performing horizon interpretation according to the seismic paper profile and the seismic data profile; after finishing interpretation, removing the seismic paper profile, checking a corresponding relation between the horizon and the seismic data profile, and slightly regulating the horizon of which the interpretation has an error; and exporting the interpreted horizon data and finishing the horizon digitalization operation. By the method, the interpreted paper profile is stacked on a digital profile, so the paper profile can be displayed semi-transparently; with reference to the horizon on the paper profile and the digital profile thereunder, a user can input the paper profile into a computer conveniently; and after the paper profile is stacked, the user can interpret the horizon on the computer according to the paper profile and export the horizon conveniently.

Description

technical field [0001] The invention relates to a fast digitization method for seismic paper section interpretation horizons, which belongs to the field of geological exploration or seismic exploration. Background technique [0002] In the process of seismic interpretation, interpreters generally interpret geological horizons on the paper section first, and then perform horizon interpretation on the computer with reference to the horizon lines explained on the paper section. The disadvantage of this interpretation method is that the workload of the interpreters is very large, which is equivalent to performing horizon interpretation, once on the paper section and once on the section displayed on the computer. In order to liberate interpreters from heavy work and improve production efficiency, the existing software introduces the paper section as a picture into the computer, and interprets it with reference to the layers on the paper section. But the disadvantage of this meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/28
Inventor 何光明姚兴苗李忠巫骏陈爱萍曹中林
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD