Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Intelligent Identification Method of Sedimentary Microfacies Based on DMC-BiLSTM

Version 1 : Received: 17 March 2021 / Approved: 18 March 2021 / Online: 18 March 2021 (07:21:22 CET)

How to cite: Luo, Z.R.; Zhou, Y.; Li, Y.X.; Guo, L.; Tuo, J.J.; Xia, X.L. Intelligent Identification Method of Sedimentary Microfacies Based on DMC-BiLSTM. Preprints 2021, 2021030459 (doi: 10.20944/preprints202103.0459.v1). Luo, Z.R.; Zhou, Y.; Li, Y.X.; Guo, L.; Tuo, J.J.; Xia, X.L. Intelligent Identification Method of Sedimentary Microfacies Based on DMC-BiLSTM. Preprints 2021, 2021030459 (doi: 10.20944/preprints202103.0459.v1).

Abstract

Sedimentary microfacies division is the basis of oil and gas exploration research. The traditional sedimentary microfacies division mainly depends on human experience, which is greatly influenced by human factor and is low in efficiency. Although deep learning has its advantage in solving complex nonlinear problems, there is no effective deep learning method to solve sedimentary microfacies division so far. Therefore, this paper proposes a deep learning method based on DMC-BiLSTM for intelligent division of well-logging—sedimentary microfacies. First, the original curve is reconstructed multi-dimensionally by trend decomposition and median filtering, and spatio-temporal correlation clustering features are extracted from the reconstructed matrix by Kmeans. Then, taking reconstructed features, original curve features and clustering features as input, the prediction types of sedimentary microfacies at current depth are obtained based on BiLSTM. Experimental results show that this method can effectively classify sedimentary microfacies with its recognition efficiency reaching 96.84%.

Subject Areas

Trend decomposition; Median filtering; kmeans; BiLSTM

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