石油钻采工艺Issue(5)：90-92,3.DOI:10.13639/j.odpt.2014.05.021
基于分形盒维数的无杆抽油机示功图自动识别技术
Automatic identiifcation technique for rodless pumping unit indicator diagram based on fractal box dimensions
摘要
Abstract
In view of the status of low visual inspection accuracy for pumping unit indicator diagram, complex training in automatic identiifcation neutral network and low computation speed, this studied the automatic identiifcation technique for indicator diagram based on fractal box dimensions, veriifed the viability of indicator diagram by fractal box dimensions theory, provided automatic identiifcation steps and identiifed the indicator diagram under four working conditions:normal and insufifcient liquid supply by rodless pumping unit, leaking at traveling valve and tubing leaking. The research result shows that the indicator identiifcation technique based on fractal box dimensions can accurately identify the indicator diagrams under the above four working conditions and more accurately when at low noise level;when the noise level is relatively high, noise reduction processing needs to be performed in order to ensure accurate auto-matic identiifcation. The research presents a new method for automatic identiifcation of pumping unit indicator diagram and is of great signiifcance to improve the level of automation of pumping unit running monitoring and intelligent analysis.关键词
无杆抽油机/分形盒维数/示功图/自动识别Key words
rodless pumping unit/fractal box dimension/indicator diagram/automatic identify分类
机械制造引用本文复制引用
朱春梅,刘娇,陈祥臻,马超,智玉杰,王朝霞..基于分形盒维数的无杆抽油机示功图自动识别技术[J].石油钻采工艺,2014,(5):90-92,3.基金项目
国家自然科学基金资助项目（编号51275052），北京市自然科学基金重点项目（编号3131002），北京市教委科研计划重点项目（编号KZ201311232036）。 （）
