发明名称 SYSTEM AND METHOD FOR DETECTING MATERIAL LOSS IN A TUBULAR
摘要 A method and system for detecting material loss in a tubular. A method includes identifying a radial cross-sectional area of a tubular as having a loss of material in a wall of the tubular. Responsive to the identifying, an amount of voltage offset present in each of a plurality of measurement signals is determined. Each of the measurement signals provides measurement information for an arc section of the wall. For each of the measurement signals, a zero adjusted signal is produced by adjusting the measurement signal to remove the amount of voltage offset over a length of the tubular for which the identifying recognizes the loss of material. An assessment of wall material loss is produced for each arc section of the wall of the tubular based on the zero adjusted signals. An image of the wall of the tubular showing the wall material loss for each arc section is generated.
申请公布号 US2017108468(A1) 申请公布日期 2017.04.20
申请号 US201514882969 申请日期 2015.10.14
申请人 National Oilwell Varco, L.P. 发明人 Janssen Matthias;Haberla Stefan
分类号 G01N27/82;E21B47/00 主分类号 G01N27/82
代理机构 代理人
主权项 1. A method for detecting material loss in a tubular, comprising: identifying a radial cross-sectional area of the tubular as having a loss of material in a wall of the tubular; responsive to the identifying, determining an amount of voltage offset present in each of a plurality of measurement signals, wherein each of the measurement signals provides measurement information for an arc section of the wall of the tubular; for each of the measurement signals, producing a zero adjusted signal by adjusting the measurement signal to remove the amount of voltage offset over a length of the tubular for which the identifying recognizes the loss of material; producing an assessment of wall material loss for each arc section of the wall of the tubular based on the zero adjusted signals; and generating an image of the wall of the tubular showing the wall material loss for each arc section.
地址 Houston TX US