一种非接触式的凝胶物理特性分析方法  

A Non-contact Gel Physical Property Analysis Method

作　　者：李杰[1,2] 高炜欣 王杠杠[3] LI Jie;GAO Weixin;WANG Ganggang(Key Laboratory of Shaanxi Province for Gas-Oil Logging Technology,Xi’ an Shiyou University,Xi’ an,Shaanxi 710065,China;Key Laboratory of MOE for Photo-electricity Oil-Gas Logging and Detecting,Xi’ an Shiyou University,Xi’ an,Shaanxi 710065,China;Engineering Research Center of Ministry of Education for Development and Treatment of Low and Extra-low Permeability Reservoirs in Western China,Xi’ an Shiyou University,Xi’ an,Shaanxi 710065,China)

机构地区：[1]西安石油大学陕西省油气井测控技术重点实验室,陕西西安710065 [2]西安石油大学光电油气测井与检测教育部重点实验室,陕西西安710065 [3]西安石油大学西部低渗-特低渗油藏开发与治理教育部工程研究中心,陕西西安710065

出　　处：《西安石油大学学报（自然科学版）》2022年第1期129-136,共8页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：陕西省工业攻关项目(2020GY-179)。

摘　　要：凝胶是一种常见的化学堵水物质,其化学性质稳定,价格便宜。针对凝胶力学特性分析的仪器大多为接触式仪器,或过于笨拙,或操作过于繁琐,为此提出一种非接触式的凝胶物理特性分析方法。该方法根据凝胶在毛细管中移动的基本特征,首先对凝胶图像进行针对性预处理,然后采用一种广度搜索的自适应阈值分割方法,得到精准的凝胶凹液面,进而对凝胶的动态力学性质进行计算与分析。实验表明,运用该方法分析凝胶的力学特性,平均误差率低于1%,具有较好的准确性和鲁棒性。Gel is a common chemical water plugging material.Its chemical property is stable and its price is cheap.Most of the gel mechanical property analysis instruments are contact instruments,which are generally clumsy,or complicated to operation.For this reason,a non-contact gel mechanical property analysis method is proposed.First,the gel image is preprocessed according to the basic characteristics of the gel moving in the capillary.Then,the accurate gel concave surface is got using an adaptive threshold segmentation method based on breadth search,and the dynamic mechanical properties of the gel are calculated and analyzed.The experimental results show that the average error of analyzing the mechanical properties of the gel using this method is less than 1%,and this method has good accuracy and robustness.

关 键 词：凝胶物理特性分析 图像分割算法 毛细管凝胶图像 凝胶力学特性 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]