石油地球物理勘探2024，Vol.59Issue(3)：533-542,10.DOI:10.13810/j.cnki.issn.1000-7210.2024.03.016
融合裂缝形态信息的电阻率测井成像图空白条带填充方法
A filling method of blank strip for electrical logging images based on morphological information of fractures
摘要
Abstract
There are blank strips with varying widths and positions in resistivity logging images.However,the commonly used inverse distance-weighted interpolation filling method for blank strips only relies on the distance parameters of pixel points to calculate interpolation,which often leads to inconsistent texture between the filled area and the measured area,and the texture tends to be linear,which is inconsistent with the actual situation.To solve this problem,this paper takes the morphological information and distribution of fractures as parameters,constructs an interpolation calculation model,and develops a blank strip filling method that inte-grates the morphological and distribution information of fractures.The filling algorithm can dynamically adjust the weight coefficient of the reference point to the interpolation point according to the relative position relation-ship between the interpolation point and the morphological fitting line of fractures.The texture of the fracture area is coherent and smooth,which is more consistent with the actual morphology and distribution of the frac-ture.The application results of actual logging data show that compared with the traditional filling method,the similarity of the distribution fitting line of fracture filled with this method and the curve after the Hough trans-form increases by more than 25％,and the number of discontinuously filled points decreases by more than 88％,with obvious performance improvement.The application of this method provides more favorable data support for intelligent identification and precise segmentation of various fractures in logging images in the future.关键词
电测井成像图/空白条带填充/井壁裂缝/反距离迭代插值法Key words
electrical logging images/filling/blank strip wellbore of fractures/inverse distance iterative interpo-lation method分类
天文与地球科学引用本文复制引用
夏文鹤,韩玉娇,郭全兴,官文婷,杨燚恺,陈向东..融合裂缝形态信息的电阻率测井成像图空白条带填充方法[J].石油地球物理勘探,2024,59(3):533-542,10.基金项目
本项研究受国家重点研发项目"超快响应湿度传感器在油气勘探、工业监控等领域的应用验证"(2023YFB3210205)资助. （2023YFB3210205）
