Detection depth determination method and device, equipment and storage medium

A technology for detecting depth and determining method, which is applied in the field of seismic exploration and can solve problems such as long time consumption

Active Publication Date: 2018-10-12
深圳市汇沣世纪数据工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, an embodiment of the present invention provides a method, device, device, and storage medium for determining the detection depth, s

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  • Detection depth determination method and device, equipment and storage medium
  • Detection depth determination method and device, equipment and storage medium
  • Detection depth determination method and device, equipment and storage medium

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Embodiment 1

[0028] Embodiment 1 of the present invention provides a method for determining a detection depth. The method can be performed by a device for determining the depth of detection, wherein the device can be implemented by hardware and / or software, and generally can be integrated into a device that can be used to determine the depth of detection of a seismic radar. figure 1 It is a schematic flow chart of the method for determining the detection depth provided by Embodiment 1 of the present invention, such as figure 1 As shown, the method includes:

[0029] S110. Acquire detection signals received by at least two geophones, where the detection signals are generated based on the underground medium refracting and reflecting seismic waves emitted by the seismic radar.

[0030] In this embodiment, after the seismic radar emits seismic waves to the ground, at least two geophones can be controlled to receive the detection signals generated by the underground medium refracting and refle...

Embodiment 2

[0039] figure 2 It is a schematic flowchart of a method for determining the detection depth provided by Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, "calculate the similarity parameter between each sub-detection signal and other sub-detection signals in the same sampling section, and based on the similarity Parameter determination "detection depth" of the seismic radar is optimized as follows: respectively determine the next sub-detection signal of each sub-detection signal in each sampling section according to the position order of the detectors outputting each sub-detection signal; calculate the first sub-detection signal of each sub-detection signal An autospectral density, a second autospectral density of each next sub-detection signal, and a cross-common density between each sub-detection signal and the corresponding next sub-detection signal; according to the first autospectral d...

Embodiment 3

[0063] image 3 It is a schematic flowchart of a method for determining the detection depth provided by Embodiment 3 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, the optimization of "determining the detection depth of the seismic radar based on the consistency function value" is as follows: Sorting the sub-detection signals in each detection signal in order of small to large; according to the sorting, calculate the difference between the consistency function value of each sub-detection signal and the consistency function value of the next adjacent sub-detection signal if the ratio is greater than the set threshold, then determine the sub-detection signal corresponding to the ratio as the target sub-detection signal of the detection signal to which the sub-detection signal belongs; according to the detection signal corresponding to the target sub-detection signal of each detection signal The depth r...

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Abstract

The invention discloses a detection depth determination method and device, equipment and a storage medium. The method comprises the steps that detection signals received by at least two wave detectorsare obtained, and the detection signals are generated by refracting and reflecting seismic waves emitted by seismic radar on the basis of underground media; according to set time duration, each detection signal is segmented so as to generate multiple sub detection signals; similarity parameters between each sub detection signal and other detection signals in the same sampling section are calculated, and the detection depth of the seismic radar is determined on the basis of the similarity parameters. According to the technical scheme, the determination process of the seismic radar detection depth can be simplified, required time for determining the seismic radar detection depth is shortened, consumed manpower and material resources for determining the seismic radar detection depth are reduced, the efficiency of determining the seismic radar detection depth is improved, and the application range of the seismic radar detection depth determination method is increased.

Description

technical field [0001] The invention relates to the technical field of seismic exploration, in particular to a method, device, equipment and storage medium for determining a detection depth. Background technique [0002] In recent years, with the increasing demand for oil and gas use, seismic exploration for exploring the properties and morphology of subsurface rock formations has also received more and more attention. [0003] The essence of seismic exploration is to use artificial seismic sources (explosives, seismic source vehicles or high-speed rail, etc.) The characteristic signal of the domain), broaden the frequency band, improve the resolution, etc., to determine the response of the underground medium to the artificially excited seismic wave, so as to infer the nature and shape of the underground rock formation. Based on this principle, prospectors can actively launch seismic waves underground through the developed ground-penetrating radar, actively explore the stru...

Claims

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Application Information

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IPC IPC(8): G01V1/30
CPCG01V1/30
Inventor 张延
Owner 深圳市汇沣世纪数据工程有限公司
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