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A method and processing terminal for delineating the distribution range of oceanic seamount carbonate rocks

A technique of distribution range, carbonate rock, applied in seismic signal processing, geophysical measurement, seismology, etc.

Active Publication Date: 2022-07-19
GUANGZHOU MARINE GEOLOGICAL SURVEY
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Problems solved by technology

[0004] In view of the deficiencies in the prior art, one of the purposes of the present invention provides a method for delineating the distribution range of oceanic seamount carbonate rocks, which can solve the problem of quickly determining the distribution range of seamount carbonate rocks;
[0005] The second object of the present invention is to provide a processing terminal, which can solve the problem of quickly determining the distribution range of seamount carbonate rocks

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  • A method and processing terminal for delineating the distribution range of oceanic seamount carbonate rocks
  • A method and processing terminal for delineating the distribution range of oceanic seamount carbonate rocks
  • A method and processing terminal for delineating the distribution range of oceanic seamount carbonate rocks

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Embodiment Construction

[0041] Hereinafter, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

[0042] like Figure 1-Figure 6 As shown, a method for delineating the distribution range of oceanic seamount carbonate rocks includes the following steps:

[0043] Step 1: Acquire and preprocess the seismic profile data of the shallow stratum to obtain the processing result data of the shallow stratum. The preprocessing mainly includes the processing of abnormal noise suppression and surge correction for the seismic profile data of shallow strata.

[0044] Step 2: Normalize the shallow stratum profile processing result data to obtain the normalized shallow stratum profile processing result data x(t), so as to limit the amplitude range of the shallow stratum profile processing result data. The range is limited to the interval [-1,1]. The normalization process can be carried out according to formula ①:

[0045]

[0046] Among them, x'...

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Abstract

The invention relates to a method and a processing terminal for delineating the distribution range of oceanic seamount carbonate rocks. The method includes: step 1: preprocessing the seismic profile data of the shallow stratum to obtain the processing result data of the shallow stratum profile; step 2: normalizing Step 3: Perform seismic attribute calculation to obtain instantaneous amplitude, instantaneous frequency and average frequency; Step 4: Perform horizon picking to obtain seabed horizon and sedimentary layer respectively Basement; Step 5: Perform intersection analysis with the instantaneous amplitude and average frequency, and the area corresponding to the instantaneous amplitude attribute expressing relatively low amplitude and the average frequency attribute expressing relatively high frequency is the oceanic seamount carbonate distribution range. The invention can quickly identify and delineate the carbonate rock distribution range of oceanic seamounts, and can be applied to display the carbonate rock distribution range in three-dimensional space, which can be better applied.

Description

technical field [0001] The invention relates to the technical field of seamount carbonate exploration on the seabed, in particular to a method and a processing terminal for delineating the distribution range of oceanic seamount carbonate rocks. Background technique [0002] Cobalt-rich crusts are oceanic seabed solid mineral resources rich in cobalt, nickel, copper, platinum group elements, iron and manganese elements and rare earth elements, with extremely high economic value. Oceanic seamounts are the main metallogenic potential areas of cobalt-rich crusts, and rocks such as carbonate rocks developed in oceanic seamounts are favorable substrates for the growth and development of cobalt-rich crusts. Rapid and accurate identification of the spatial distribution of seamount carbonate rocks can be expressed as It provides an important reference for the delineation of the potential metallogenic area of ​​cobalt-rich crusts. At the same time, oceanic seamounts are one of the ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/30G01V1/36
CPCG01V1/307G01V1/36G01V2210/63G01V2210/632
Inventor 杨振赵斌
Owner GUANGZHOU MARINE GEOLOGICAL SURVEY
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