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Method and system for evaluating quality of shot record collection

A shot record and quality technology, applied in the field of evaluation of shot record acquisition quality, can solve problems such as complex processing methods

Inactive Publication Date: 2019-04-19
CHINA PETROLEUM & CHEM CORP +1
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  • Description
  • Claims
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Problems solved by technology

[0002] At present, methods for quantitative analysis and objective evaluation of post-stack seismic data are based on energy, confidence ratio, resolution, dominant frequency, etc., but the processing methods of the above e

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  • Method and system for evaluating quality of shot record collection
  • Method and system for evaluating quality of shot record collection
  • Method and system for evaluating quality of shot record collection

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[0033] The present invention will be described in more detail below with reference to the accompanying drawings. Although the drawings show preferred embodiments of the present invention, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0034] The following reference figure 1 The method for evaluating the quality of shot record collection according to an exemplary embodiment of the present invention is described in detail. The method mainly includes:

[0035] Step 1: Pick up the reflection layer information on the seismic overlay section, and the reflection points contained in the reflection layer form reflection layer mapping points.

[0036] In the process of field seismic data acquisition qu...

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Abstract

The invention provides a method and system for evaluating the quality of shot record collection. The method comprises the steps that 1) the information of a reflection layer is picked up on a seismicsuperimposed section, wherein reflection points included in the reflection layer form reflection layer mapping points; 2) a corresponding path in shot records is determined based on common center points of the reflection layer mapping points, and a time-distance curve is generated; and 3) the trend of the surrounding layer picking up the reflection points on the seismic superimposed section and the time-distance curve generated in the step 2) are combined to determine whether the shot records are qualified or geological waste. According to the invention, based on the seismic superposition section, the distribution of the time-distance curve on a shot set is analyzed, and the superimposed section and the shot records are organically combined for comparative analysis to check the reflected wave condition of a target layer; the shot record collection quality is comprehensively analyzed; and an effective and objective method for determining field data to be qualified or geological waste isprovided.

Description

technical field [0001] The present invention relates to the field of petroleum geophysical exploration, and more specifically, relates to a method and system for evaluating the acquisition quality of shot records. Background technique [0002] At present, methods for quantitative analysis and objective evaluation of post-stack seismic data are based on energy, confidence ratio, resolution, dominant frequency, etc., but the processing methods of the above evaluation methods are relatively complicated, and it is necessary to propose a simple processing method that is The method can realize the quantitative analysis and objective evaluation of the acquisition quality of shot records. [0003] The information disclosed in the background of the present invention is only intended to deepen the understanding of the general background of the present invention, and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art kno...

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Application Information

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IPC IPC(8): G01V13/00
CPCG01V13/00
Inventor 洪承煜杨尚琴宋志翔
Owner CHINA PETROLEUM & CHEM CORP
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