Seismic Facies Analysis Based on Deep Learning

Seismic facies analysis is to study the sedimentary environment of stratigraphic sequence and provides an important basis for reservoir prediction. Most of the existing analysis methods have low efficiency and heavily rely on manual experience, and therefore, it is difficult to interpret increasingl...

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Bibliographic Details
Published in:IEEE geoscience and remote sensing letters Vol. 17; no. 7; pp. 1119 - 1123
Main Authors: Zhang, Yuxi, Liu, Yang, Zhang, Haoran, Xue, Hao
Format: Journal Article
Language:English
Published: Piscataway IEEE 01.07.2020
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Analysis
Classification
Coders
Data models
Decoding
Deep learning
encoder–decoder architecture
ensemble learning
Graphics processing units
Machine learning
Model testing
Reservoirs
Sedimentary facies
Segmentation
Seismic activity
Seismic analysis
Seismic data
seismic facies analysis
Seismic surveys
Seismological data
Stratigraphy
Target recognition
Testing
Three dimensional models
Training
Workflow
ISSN:1545-598X, 1558-0571
Online Access:Get full text
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Summary:Seismic facies analysis is to study the sedimentary environment of stratigraphic sequence and provides an important basis for reservoir prediction. Most of the existing analysis methods have low efficiency and heavily rely on manual experience, and therefore, it is difficult to interpret increasingly complex seismic data. Deep learning techniques can help to solve these problems and achieve automatic seismic facies classification. We regard seismic facies classification as a target segmentation problem and propose new method and training strategies. Our workflow primarily involves four sections. First, we process the manually annotated labels and seismic data with mirroring and cropping operations to ensure that network can accept input with arbitrary size and the model training is not limited to GPU memory. Second, data augmentation is applied to automatically generate massive training samples from the processed data. Third, we build two independent networks based on encoder-decoder architecture: one identifies all seismic facies simultaneously, and the other identifies single seismic facies in each model. However, both the results of the two networks have some drawbacks. Fourth, to overcome these drawbacks, we propose an ensemble learning method to get optimized model and test it on 3-D seismic data. The testing results manifest that the proposed method can improve the predictive ability of model, accurately describe the seismic facies, and can be applicable to entire seismic data volume.
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ISSN:1545-598X
1558-0571
DOI:10.1109/LGRS.2019.2941166