Method and device for constructing electromagnetic exploration inversion model and storage medium
A technology of inversion model and electromagnetic method, applied in the field of geophysical exploration, can solve problems such as time-consuming and computing resources, and achieve the effect of fast training speed, shortening inversion time, and improving accuracy
Active Publication Date: 2022-07-22
CHENGDU UNIVERSITY OF TECHNOLOGY
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However, this method of geophysical inversion has the following disadvantages: Since each inversion requires multiple forward calculations, this iterative process consumes a lot of time and computing resources, which is the biggest obstacle to real-time inversion
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[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
[0047] The terms "first", "second", "third" and the like in the description and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.
[0048] Explanation of terms involved in this application:
[0049] Underground electrical properties refer to the stra...
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Abstract
The invention discloses a construction method and device of an electromagnetic exploration inversion model and a storage medium. The method comprises the steps that a forward modeling sample set is generated, and the forward modeling sample set is response data obtained through forward modeling calculation of a preset number of stratum models through an aviation transient electromagnetic method; performing unsupervised learning clustering on the forward modeling sample set to obtain a type label of each stratum model, and adding the type label of each stratum model to each corresponding forward modeling sample to obtain an inversion sample set; and constructing a neural network with supervised learning, and training the neural network by taking the inversion sample set as input to obtain an inversion model of electromagnetic method exploration. By constructing a supervised and unsupervised combined deep learning aviation transient electromagnetic exploration inversion model, the purposes of shortening the inversion time and realizing real-time inversion are achieved.
Description
technical field [0001] The present application relates to the technical field of geophysical exploration, and in particular, to a method, device and storage medium for constructing an inversion model for electromagnetic exploration. Background technique [0002] Geophysical electromagnetic exploration completes the characterization of unknown underground geological structures by observing the propagation characteristics of electromagnetic fields and inverting the observed data, thereby obtaining a reasonable stratigraphic model. Because the formation model and observation data have function mapping laws, and factors such as changes in the physical properties of geological objects will lead to changes in the observed electromagnetic responses, it is very difficult to express the electromagnetic response mapping relationship of complex formations with explicit functions. [0003] In geophysical electromagnetic exploration, the traditional inversion method is: relying on prio...
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Login to View More IPC IPC(8): G06F30/27G06K9/62G06N3/04G06N3/08
CPCG06F30/27G06N3/088G06N3/045G06F18/23213Y02A90/30
Inventor 曹辉施明智曹礼刚
Owner CHENGDU UNIVERSITY OF TECHNOLOGY