Self-adaptively inpainting gaps between electrical image pads according to the image fabric

作     者：Zhang Zhao-hui Deng Jing Chen Hua-yong Yu Hong-guo 张兆辉;邓静;陈华勇;于红果

作者机构：School of Geology and Mining EngineeringXinjiang UniversityUrumqi 830046China Exploration and Development Research Institute of Changqing Oilfi eld CompanyPetroChinaXi’an 710018China Xinjiang branch of CNPC LoggingKaramay 834000China. 

出 版 物：《Applied Geophysics》 (应用地球物理（英文版）)

年 卷 期：2020年第17卷第5期

页      面：823-833,903,904页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：This work was supported by Initial Scientifi c Research Fund for Doctor of Xinjiang University(No.620321016) Gansu Provincial Natural Science Foundation of China(No.17JR5RA313) Key Laboratory of Petroleum Resource Research of Chinese Academy of Science Foundation(No.KFJJ2016-02) 

主　　题：electrical image logging binary structure image inpainting self-adaptively fabric guiding 

摘      要：Images created from measurements made by wireline microresistivity imaging tools have longitudinal gaps when the well circumference exceeds the total width of the pad-mounted electrode *** gap size depends on the tool design and borehole size,and the null data in these gaps negatively aff ect the quantitative evaluation of *** with linear and texture features obtained from microresistivity image logs have distinct dual fabric features because of logging principles and various geological *** image features usually include phenomena such as fractures,bedding,and ***,texture-based image features usually indicate phenomena such as vugs and rock *** to the characteristics of this fabric-based binary image structure and guided by the practice of geological interpretation,an adaptive inpainting method for the blank gaps in microresistivity image logs is *** images with linear features,a sinusoidal tracking inpainting algorithm based on an evaluation of the validity and continuity of pixel sets is ***,the most similar target transplantation algorithm is applied to texture-based *** results obtained for measured electrical imaging data showed that the full borehole image obtained by the proposed method,whether it was a linear structural image refl ecting fracture and bedding or texture-based image refl ecting the matrix and pore of rock,had substantially good inpainting quality with enhanced visual *** proposed method was eff ective for inpainting electrical image logs with large gaps and high angle fractures with high ***,ladder and block artifacts were rare,and the inpainting marks were not *** addition,detailed full borehole images obtained by the proposed method will provide an essential basis for interpreting geological phenomena and reservoir parameters.