石油物探2018，Vol.57Issue(1)：148-153,6.DOI:10.3969/j.issn.1000-1441.2018.01.019
复杂地层情况下全井周电成像图像修复方法
Image inpainting for fullbore electrical imaging logging in complex formations
摘要
Abstract
In the processing of resistivity imaging logging data,the purpose of image inpainting is to obtain fullbore electrical ima-ging images.In view of the presence of gaps in an electrical imaging logging image,a multipoint geostatistics method can be used to achieve effective image inpainting results for formations with homogeneity because it accounts for the statistical information of the whole image in the processing window length.However,when applied to an electrical imaging image with large gaps from forma-tions with heavy heterogeneity,the method produces incorrect filling results because of the mistake in finding a matching pattern. In this paper,an image inpainting method based on combining multipoint geostatistics with inverse distance weighted interpolation is proposed.First,this method fully uses the high efficiency of the interpolation method to quickly fill the gaps in an electrical ima-ging logging image.Next,the initial inpainted fullbore logging image is filtered,which could help in finding a matching pattern.It is easier to find the right matching pattern and reduce the probability of incorrect patterns for formations with heavy heterogeneity, owing to the use of the initial inpainted fullbore logging image after the interpolation in the gaps.The processing results for the measured electrical imaging data showed that this proposed method is effective for inpainting an electrical imaging logging image with large gaps from formations with heavy heterogeneity.关键词
电测井图像/多点地质统计学/图像修复/非均匀性/插值Key words
electrical logging image/multipoint geostatistics/image inpainting/heterogeneity/interpolation分类
天文与地球科学引用本文复制引用
张翔,张猛,肖小玲,罗利,杨玉卿,崔维平..复杂地层情况下全井周电成像图像修复方法[J].石油物探,2018,57(1):148-153,6.基金项目
国家自然科学基金项目(41374148,41674136)资助. This research is financially supported by the National Natural Science Foundation of China (Grant Nos.41374148,41674136). （41374148,41674136）
