反演(地质)
计算机科学
最大值和最小值
随钻测井
人工神经网络
深度学习
非线性系统
稳健性(进化)
人工智能
大地电磁法
各向异性
算法
钻探
物理
地质学
电阻率和电导率
地震学
光学
工程类
数学
电气工程
生物化学
数学分析
基因
机械工程
化学
构造学
量子力学
作者
Ning Zhao,Ning Li,Zhenggang Xiao,Xuben Wang,Ce Qin
出处
期刊:IEEE Transactions on Geoscience and Remote Sensing
[Institute of Electrical and Electronics Engineers]
日期:2024-01-01
卷期号:: 1-1
标识
DOI:10.1109/tgrs.2024.3355463
摘要
The inversion of logging-while-drilling (LWD) measurements using deep learning (data-driven approach) is a rapidly growing topic of interest in well geosteering. Deep learning (DL) inversion constructs a complex nonlinear mapping from data to model and has extremely high inversion efficiency. A purely data-driven approach requires large amounts of representative training samples from both the model and data spaces to build robust networks, which may not conform to the physical constraints of the problem. The lack of physical knowledge can limit the effectiveness of DL networks when applied to new scenarios. The regularization inversion (physics-driven approach) is a very efficient local optimization technique but is prone to be trapped into local minima, and the inversion results cannot be obtained in real-time. We propose a coupled physics-driven and data-driven approach to address this issue and construct a DL workflow. A 2.5D model including dip, fault, and anisotropic formation is considered to evaluate the proposed method. Comparing the inversion imaging performance of the proposed physics-driven approach with the traditional residual network (ResNet) shows a significant improvement in the accuracy of the reconstructed resistivity model. Finally, the robustness is evaluated by adding a noise generalization network.
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