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107 条记录 (耗时 0.016 秒)

    SYSTEM AND METHOD FOR DETECTING MATERIAL LOSS IN A TUBULAR
    43.
    发明公开
    SYSTEM AND METHOD FOR DETECTING MATERIAL LOSS IN A TUBULAR 审中-公开

    公开(公告)号：EP3362643A1

    公开(公告)日：2018-08-22

    申请号：EP16791154.4

    申请日：2016-10-12

    申请人： National Oilwell Varco, L.P.

    发明人： JANSSEN, Matthias ,  HABERLA, Stefan

    IPC分类号： E21B47/00 ,  E21B47/10 ,  G01B7/28

    CPC分类号： G01N27/82 ,  E21B47/00 ,  E21B47/0002 ,  E21B47/1025 ,  G01B7/281 ,  G01B7/32 ,  G01N17/006 ,  G01N27/72

    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.

    METHOD OF MEASURING METAL LOSS FROM EQUIPMENT IN PROCESS SYSTEMS
    46.
    发明公开
    METHOD OF MEASURING METAL LOSS FROM EQUIPMENT IN PROCESS SYSTEMS 审中-公开
    在过程系统中测量设备金属损失的方法

    公开(公告)号：EP3280994A1

    公开(公告)日：2018-02-14

    申请号：EP16812017.8

    申请日：2016-06-15

    申请人： Roxar Flow Measurement AS

    发明人： ESPEJORD, Olav ,  IORGA, Cristian

    IPC分类号： G01N17/04 ,  G01B7/06 ,  G01R27/02

    CPC分类号： G01N17/04 ,  G01B7/06 ,  G01N17/006 ,  G01N27/041 ,  G01R27/02

    摘要： Method of measuring metal loss from equipment in process systems. Probes installed for monitoring of erosion and/or corrosion (metal loss) in process equipment use results from resistivity measurements in a measurement element and a reference element to produce a measurement of metal loss in the measurement element exposed to process flow and may trigger an alarm when measured metal loss exceeds a threshold level. Prior art methods produce numerous false alarms hiding true alarms. The present method ignores these false alarms by calculating confidence measures that are included in the metal loss calculations to attenuate noise that otherwise would produce false alarms or misinterpretation of the corrosion or erosion state in the process equipment being monitored

    CYCLIC FLEXING SALT-SPRAY CHAMBER AND METHODS
    48.
    发明公开
    CYCLIC FLEXING SALT-SPRAY CHAMBER AND METHODS 审中-公开
    KAMMER ZUMSALZSPRÜHENUND BIEGBELASTEN UND VERFAHREN

    公开(公告)号：EP3136082A1

    公开(公告)日：2017-03-01

    申请号：EP16183323.1

    申请日：2016-08-09

    申请人： The Boeing Company

    发明人： PENNELL, Sean M ,  SAPPER, Erik D ,  WALLBURG, Andrew G ,  WILLIAMS, Kristen S

    IPC分类号： G01N17/00

    CPC分类号： G01N17/02 ,  G01N3/32 ,  G01N17/002 ,  G01N17/006 ,  G01N2203/0007 ,  G01N2203/0023 ,  G01N2203/024

    摘要： Aspects described herein generally relate to apparatus and methods for determining operational performance of material systems. Apparatus (100) generally comprise a salt fog chamber having a fixture support having material system flexing components to test corrosion of an aircraft material system. In one aspect, a material performance chamber comprises a salt fog chamber and a jaw (124) configured to flex a material system. Methods for determining corrosion include exposing a material system, such as a panel, to salt fog and flexing the material system at a frequency. In one aspect, a method for determining corrosion includes exposing a material system to a salt fog. The pH of the salt fog is from about 3.0 to about 9.0 and flexing the material system at a frequency from about 0.1 Hz to about 60 Hz.

    摘要翻译： 本文描述的方面通常涉及用于确定材料系统的操作性能的装置和方法。 设备（100）通常包括具有固定支架的盐雾室，其具有材料系统弯曲部件以测试飞机材料系统的腐蚀。 在一个方面，材料性能室包括盐雾室和构造成弯曲材料系统的钳口（124）。 用于确定腐蚀的方法包括将诸如面板的材料系统暴露于盐雾并以一定的频率弯曲材料系统。 一方面，用于确定腐蚀的方法包括将材料体系暴露于盐雾中。 盐雾的pH为约3.0至约9.0，并且以约0.1Hz至约60Hz的频率使材料体系弯曲。

    REMAINING-SERVICE-LIFE EVALUATION METHOD FOR METAL PIPE SUFFERING FROM CREEP DAMAGE
    49.
    发明公开
    REMAINING-SERVICE-LIFE EVALUATION METHOD FOR METAL PIPE SUFFERING FROM CREEP DAMAGE 有权
    方法用于确定所述剩余寿命的金属管WITH蠕变损伤

    公开(公告)号：EP3098590A1

    公开(公告)日：2016-11-30

    申请号：EP14879514.9

    申请日：2014-01-24

    申请人： The Chugoku Electric Power Co., Inc.

    发明人： NISHIDA, Hidetaka

    IPC分类号： G01N17/00

    CPC分类号： G01N17/006 ,  G01N3/12 ,  G01N17/008 ,  G01N2203/0071

    摘要： [Problem] Remaining service life of a metal pipe suffering from creep damage is measured without scraping the surface of the metal pipe.
    [Solution] In a remaining service life evaluation method according to the present invention, the remaining service life of a metal pipe (1) suffering from creep damage is evaluated on the basis of a master curve that is prepared in advance. The master curve is prepared by performing an internal pressure creep test in a state in which a steel strip (2), made of a metal material having a thermal expansion coefficient and strength of the metal pipe or greater, is wrapped under tension around an outer peripheral face of a test piece (11) made of the same material and having the same inner and outer diameters as the metal pipe. The master curve indicates a relationship between a degree of deterioration of the steel strip and remaining service life of the metal pipe. To evaluate the remaining service life, a steel strip is wrapped around an outer peripheral face of the metal pipe under the same conditions as those during the internal pressure creep test. The degree of deterioration of the steel strip with the use of the metal pipe is then measured, and applied to the master curve.