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A method for segmentation and extraction of 3D geological anomalies based on convolutional neural network

A convolutional neural network and three-dimensional geological technology, which is applied in the field of segmentation and extraction of three-dimensional geological anomalies, and can solve the problems of difficulty in fine description of fluvial facies reservoirs, etc.

Active Publication Date: 2021-10-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

However, due to the frequent changes of channel, severe superimposition, limitation of signal-to-noise ratio and limitation of resolution of seismic data itself, there are certain difficulties in finely describing fluvial reservoirs

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  • A method for segmentation and extraction of 3D geological anomalies based on convolutional neural network
  • A method for segmentation and extraction of 3D geological anomalies based on convolutional neural network
  • A method for segmentation and extraction of 3D geological anomalies based on convolutional neural network

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Embodiment Construction

[0024] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] see figure 1 , the present invention provides a method for segmenting and extracting three-dimensional geological anomalies based on a convolutional neural network, which is specifically implemented through the following steps:

[0026] Step 1: Divide the input 3D data cube into several 3D river data of the same size, and label the 3D river data to obtain a label vector.

[0027] In this embodiment, the input data is a three-dimensional data cube. Firstly, the input data is divided into multiple three-dimensional river channel data of the same size, and whether the three-dimensional river channel data has a channel is detected and marked. The labeling rules are: if the center point of the 3D river data belongs to the river part, it is marked as 1; if the center point of the 3D river data does not belong to the river part, it is marked as 0. In t...

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Abstract

The invention provides a method for segmenting and extracting three-dimensional geological anomalies based on a convolutional neural network, which belongs to the field of channel geological extraction. The present invention finely extracts the three-dimensional geological anomalies through the training and prediction of the convolutional neural network, which will play a great role in future oil exploitation; the present invention slices the data of the three-dimensional geological anomalies from different axes, through Two-dimensional data identifies and divides three-dimensional data, not only training data through a single dimension, but also making full use of the spatial attributes of three-dimensional data, which can better identify the relationship between river data points.

Description

technical field [0001] The invention belongs to the field of channel geological bodies, in particular to a method for segmenting and extracting three-dimensional geological anomalies based on a convolutional neural network. Background technique [0002] Sandstone reservoirs are the most important places for oil and gas accumulation, and fluvial facies reservoirs are one of the most important types of reservoirs. Due to the complicated superimposition and transition of river channels, large vertical and lateral changes in reservoir lithology and poor continuity, and the constraints of signal-to-noise ratio and resolution of seismic data, there are still many difficulties in identifying and describing fluvial reservoirs. [0003] Geological anomaly channel sand bodies have good physical characteristics such as porosity and permeability, and are good places for oil and gas accumulation. If the paleo-river sand body is close to the oil source, it can become a reservoir of oil a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/10G06K9/00G06K9/62G06N3/04
CPCG06T7/10G06V20/647G06N3/045G06F18/214
Inventor 鲁才陈家相胡光岷
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA