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Quick numerical simulation method, device and equipment for two-degree body gravity anomaly

An abnormal gravity and fast technology, applied in the computer field, can solve the problems of low algorithm calculation efficiency and large memory occupation, and achieve the effect of reducing the calculation of integral coefficients, improving the accuracy and reducing memory requirements.

Pending Publication Date: 2022-02-18
CENT SOUTH UNIV
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  • Application Information

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Problems solved by technology

[0004] Therefore, the existing algorithms have the problems of low computational efficiency and large memory usage.

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  • Quick numerical simulation method, device and equipment for two-degree body gravity anomaly
  • Quick numerical simulation method, device and equipment for two-degree body gravity anomaly
  • Quick numerical simulation method, device and equipment for two-degree body gravity anomaly

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Embodiment Construction

[0062] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0063] In one embodiment, such as figure 1 As shown, a fast numerical simulation method for two-degree gravity anomalies is provided, including the following steps:

[0064] Step 102, constructing a two-dimensional volume model of the target area according to the distribution of the target volume to be detected.

[0065] The target body to be detected is a geological body that causes second-degree anomalies, such as layered ore bodies, vein-shaped ore bodies, synclines, anticlines, etc.

[0066] The field point coordinates of the two-dimensional volume model include the ...

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Abstract

The invention relates to a quick numerical simulation method and device for two-degree body gravity abnormity and computer equipment. The method comprises the steps that a two-dimensional body model is constructed according to distribution of a to-be-detected target body, meanwhile, mesh generation is conducted on the target body, a target body density distribution model is obtained, and the mesh interval of the target body density distribution model is consistent with that of the two-dimensional body model; on the basis, a second-degree gravity anomaly formula is given, a kernel function unit integral coefficient is calculated after discretization, finally, gravity anomaly of a certain layer of model is obtained through one-dimensional fast discrete convolution, and gravity anomaly of the whole model can be obtained through accumulation. According to the method, the grid models are respectively constructed for the target area and the target body to be detected, and integration is only required to be performed on the target body grid when the gravity anomaly is calculated, so that the memory requirement is greatly reduced, the integral coefficient calculation is reduced, and the calculation efficiency is improved on the premise of ensuring that the original precision is not changed.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a fast numerical simulation method, device and computer equipment for a two-degree gravity abnormality. Background technique [0002] Gravity prospecting is a relatively mature method in geophysical prospecting. Due to its advantages of simple construction, low cost, high efficiency and large exploration depth, it has been widely used in regional surveys, mineral resource exploration and oil and gas resource exploration. Forward modeling is the basis of inversion, so scholars attach great importance to the forward modeling calculation of gravity field. In reality, all geological bodies are three-dimensional, and the forward modeling based on the three-dimensional model is relatively more in line with the actual situation, but the three-dimensional model takes up a lot of memory and the calculation efficiency is low; The geological body with a much larger scale in its...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06F17/15G06F111/10G06F119/14
CPCG06F30/20G06F17/156G06F2119/14G06F2111/10Y02T90/00
Inventor 王旭龙柳建新范平阳郭荣文
Owner CENT SOUTH UNIV