Optimal fault detection from seismic data using intelligent techniques: A comprehensive review of methods
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Abstract: Seismic data plays a pivotal role in fault detection, offering critical insights into subsurface structures and seismic hazards. Understanding fault detection from seismic data is essential for mitigating seismic risks and guiding land-use plans. This paper presents a comprehensive review of existing methodologies for fault detection, focusing on the application of Machine Learning (ML) and Deep Learning (DL) techniques to enhance accuracy and efficiency. Various ML and DL approaches are analyzed with respect to fault segmentation, adaptive learning, and fault detection models. These techniques, benchmarked against established seismic datasets, reveal significant improvements over classical methods in terms of accuracy and computational efficiency. Additionally, this review highlights emerging trends, including hybrid model applications and the integration of real-time data processing for seismic fault detection. By providing a detailed comparative analysis of current methodologies, this review aims to guide future research and foster advancements in the effectiveness and reliability of seismic studies. Ultimately, the study seeks to bridge the gap between theoretical investigations and practical implementations in fault detection.
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Key words:
- Seismic data /
- Fault detection /
- Fault Segmentation /
- Machine learning /
- Deep learning /
- Adaptive learning
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Table 1. Comparison of fault segmentation techniques from seismic data
Reference Techniques used Significance Limitations Wu et al. (2019) Fully Convolutional Neural Network Efficient fault segmentation, Automatic feature extraction Requires expert knowledge for accurate labelling, Time-consuming label creation Hu et al. (2020) CNN Limited training set usage, Reduced training duration, Improved segmentation Balancing model complexity with resources is challenging Dou et al. (2021) 3D-CNN Effective training with limited data, Attention mechanism for noise reduction Hyperparameter tuning is required, Limited data for attention module Lefevre et al. (2020) Analog models Understanding fault geometry determinants Difficulty in achieving true scale similarity Dou et al. (2022) Fault-Net architecture Reduction of false negatives, Preserving edge information Incomplete labelling may lead to inaccurate training Visini et al. (2020) FRESH and SUNFISH Improving PSHA methodologies Lack of user-friendly interface, Uncertainty handling needs improvement Li et al. (2023) Fault-Seg-Net High precision fault localization, Compound loss for uneven segmentation Increased computational overhead, Training time prolongation Lima et al. (2024) DNFS Enhanced accurate predictions Sensitivity to geological transitions Liu et al. (2020) CNN Improved interpretability, Better prediction accuracy Need for deeper interpretability exploration, Additional domain knowledge integration Li et al. (2024) Fault-Seg-LNet Achieve the tradeoff between model precision and efficiency Continuous fine-tuning required, Adaptation to changing geological conditions Khayer et al. (2023) HOG Enhances the accuracy of geological object delineation in seismic images The quality of seismic data and the optimization of HOG parameters affects the system performance Dou et al. (2024) FaultSSL Enhances fault detection by effectively integrating limited labelled data Constrained by the reliance on sparse and potentially inaccurate 2D slice annotations Table 2. Review of fault detection from seismic data using ML algorithms
Reference Techniques used Significance Limitations Zeng et al. (2021) SVM, VMD Intelligent fault diagnosis, noise attenuation, strong relationship between seismic features and faults Ineffective for non-stationary or complex noise patterns Martín et al. (2023) KNN Interactive 3D fault identification, lithological classification Struggles with complex fault geometries and heterogeneities Ashraf et al. (2020) NN, ACO Advanced fracture network recognition, fault identification using seismic data Requires careful parameter tuning for optimization, may not effectively handle all types of faults Noori et al. (2019) Gaussian process regression Fault detection via abnormality identification, fault edge determination Propagation of uncertainties from GPR into fault detection may lead to false positives or missed detections Ren et al. (2023) SVM, PSO Provided insights into fault exposure conditions for roads and wells in the target coal seam Lack of true fault existence probability assessment. Wu et al. (2021) FCN Fault segmentation based on FCN, balanced loss function for model optimization Incorporating physical and geological constraints in model architecture is challenging Wu et al. (2019) MTL-CNN Fault detection, structure-oriented smoothing, seismic normal vector estimation Designing CNN architectures for improved structural interpretation is challenging Jang et al. (2023) PCA, RF Relationship between fault distribution and controlling factors, efficient RF classification Challenge in interpreting feature importance due to RF's bias toward correlated features Gong et al. (2024) SOM-GWO-SVM Intelligent data preprocessing, fault identification accuracy improvement Struggles to capture temporal dynamics of fault patterns and seismic activity evolution Wang et al. (2020) CNN Enhanced fault detection through knowledge amalgamation, student CNN trained on synthetic and field data Investigation of appropriate training data sets and labels needed for effective fault interpretation Feng et al. (2022) LOC-FLOW Enhances earthquake catalog accuracy and provides high-resolution velocity structures Effectiveness is constrained by the availability and quality of seismic data from dense station networks Waheed et al. (2021) PINNTOMO Enhances seismic tomography by leveraging physics-informed neural networks Has extremely complex geological settings Table 3. Review of fault detection from seismic data using DL algorithms
Reference Techniques used Significance Limitations An et al.(2021) DCNN Efficient fault recognition methodology outperforms state-of-the-art methods, anticipates small errors Mitigating label discrepancies, reliable model training Palo et al.(2023) Graph Convolutional Network (GCN) Interpreting faults in seismic data, good accuracy Lacks feature engineering strategies Alfarhan et al. (2020) Encoder-decoder deep neural network Good detection accuracy, robustness to labelled data scarcity Lack of uncertainty estimation methods Bi et al.(2021) Volume-to-volume neural network High prediction accuracy, low computing costs Ineffective for low dip-angle thrust faults Li et al.(2019) U-Net Efficient fault detection with small training sets, increased interpretation efficiency Class imbalance leads to less accurate fault detection Xu et al. (2021) 3D convolutional autoencoder Handling seismic data directly, with good accuracy Needs optimization of architecture and hyperparameters Li et al. (2021) Deep CNN Enhanced perceived quality, better fault detection Artifacts, slight overfitting Wu et al. (2022) Modified U-Net with dilated convolutions Improved capacity for multi-scale information, better fault identification Requires further computational optimization Lin et al. (2022) 2.5D CAU-net with channel attention mechanism Efficient utilization of correlation between seismic slices, enhanced fault detection Model overfitting with a larger cropping approach Ma et al. (2023) U-Net and CNN Accurate multiparameter elastic wave inversion, strong generalizability Physical limitations, noisy data sensitivity Vu and Jardani (2022a) SegNet Accurately map fracture networks in heterogeneous aquifers using hydraulic tomography data Not fully capture the complexities of real-world fracture geometries and hydrological conditions Vu and Jardani(2022b) HT-XNET Simultaneously reconstruct transmissivity and storability with improved accuracy Need in-depth considering limits under variance of the method on aquifer conditions and data Table 4. Review of fault detection from seismic data using adaptive learning algorithms
Reference Techniques
usedSignificance Limitations Zini et al. (2019) SeisNet Achieved high F1 score on bright spot recognition, quantifying bright spots, and predicting volume Further research is needed for processing seismic data, waveform prediction, and performance on larger datasets Zhou et al. (2021) Transfer learning with convolutional neural networks Quick training, produced satisfactory results despite the class imbalance Inaccuracy in detecting fault discontinuities in 3D space Cunha et al. (2020) U-net based on DANN (Domain Adversarial Neural Network) Improved fault detection accuracy, addressed challenges of real geological situations, noise disturbance, and seismic signal frequency challenge in finishing fault detection on seismic data with various frequencies Ao et al. (2021) Transfer learning Improved seismic dip estimation accuracy, applicability in real-world scenarios Difficulty in assessing the reliability of network predictions Dou et al. (2024) Tiny Self-Attention and HRNet, contrastive learning Enhanced representation learning, improved fault detection tasks, addressed memory overflow issues Challenges in sparse distance matching in 3D high-resolution data Zhou et al. (2021) Progressive transfer learning Enhanced fault detection using real seismic data, improved fault continuity Difficulty in updating training dataset without introducing biases Wei et al. (2022) CNN and transfer learning Robust fault feature representation learning, effective fault detection Challenges in tuning focal loss parameters and ensuring effectiveness across different datasets Li et al. (2024) Fault-Attri-Attention Improved fault detection with enhanced accuracy Reduced efficiency and increased computational overhead due to managing multiple attributes Mustafa et al. (2024) 3D CNN and Attention-guided training Framework Enhanced fault prediction with better performance Lack of deep understanding in modelling and incorporating human visual attention Zeng et al. (2024) 3D-UNet Enhanced feature extraction and fault detection, improved accuracy and continuity Struggles in characterizing low-order faults and fault continuity Zhang et al. (2022) Deep Transfer Learning Significantly accelerates hydraulic fracture imaging through deep transfer learning Reliance on simplified models that introduce approximation errors Titos et al. (2023) Transfer Learning Enhances real-time volcano tectonic earthquake monitoring through transfer learning The quality and completeness of the master dataset introduce biases Table 5. Review of enhanced fault detection models from seismic data
Reference Techniques
usedSignificance Limitations Yan et al. (2019) Forward and backward diffusion Enhancing fault features while suppressing noise, improving fault-tracking accuracy Struggles in differentiating actual faults and stratigraphic features in complex geological structures Mousavi et al. (2022) Erosion algorithm, Sobel and Laplacian of Gaussian Potential alternative to conventional fault enhancement methods Artificial enhancements or suppressions near boundaries affect overall image quality Lyu et al. (2019) Structure-oriented filtering Improved fault identification through coherence enhancement Introduction of spurious features or oversimplification of complex fault networks Yan et al. (2021) Transfer learning Enhanced fault detection accuracy, particularly for complex fault types Difficulty in accurately identifying complex fault types such as thrust and listric faults Laudon et al. (2021) CNN-SOM Better outcomes compared to using single ML techniques Lack of feature design invariant to variations such as noise, resolution, or acquisition parameters Yuan et al. (2019) Adaptive spectrum decomposition and super-resolution DL with CNN Improved fault-detection system with adjustable scale highlighting and high-resolution Bridging the gap between domains and fostering collaboration Otchere et al. (2022) Deep Residual U-net Respectable fault prediction result, enhanced seismic imaging Struggles to understand uncertainty inherent in predictions Zhang et al. (2024) FaultSeg Swin-UNet Transformer Improved feature representations, increased recognition accuracy Adaptability challenges with narrow, elongated, and unevenly distributed fault annotations Mahadik et al. (2021) Gradient structure tensor-based coherence Clearer fault lines with less noise, future goal of creating automated defect detection system Future integration of DL and ML is needed for complete automation Isaac et al. (2023) Dip-steered diffusion filter, DSMF and FEF Revealing small-scale faults and stratigraphic heterogeneity Need for improvement in noise suppression while preserving useful signal information Sheng et al. (2022) REST and hypoDD Mechanisms of induced seismicity through fluid diffusion and fault reactivation Limited by the lack of long-term observational data and potential variability Feng et al. (2022) Enhanced Geothermal System (EGS) Offers a quantitative framework for assessing fault slip potential during geothermal operations Limited by uncertainties in stress field parameters -
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