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    FLEXIBLE PIPE FATIGUE MONITORING BELOW THE BEND STIFFENER OF A FLEXIBLE RISER
    2.
    发明申请
    FLEXIBLE PIPE FATIGUE MONITORING BELOW THE BEND STIFFENER OF A FLEXIBLE RISER 审中-公开
    灵活上升器的弯曲强化器下方的柔性管道疲劳监测

    公开(公告)号：WO2009109745A1

    公开(公告)日：2009-09-11

    申请号：PCT/GB2009/000584

    申请日：2009-03-03

    Applicant: SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER CANADA LIMITED ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V. ,  MANGAL, Lars ,  SUTHERLAND, Lenny ,  SMITH, Russell ,  ROBERTS, Damon, Richards

    Inventor： MANGAL, Lars ,  SUTHERLAND, Lenny ,  SMITH, Russell ,  ROBERTS, Damon, Richards

    IPC: E21B17/01 ,  E21B47/00

    CPC classification number: E21B17/017 ,  E21B47/0006 ,  G01M5/0025 ,  G01M5/0091 ,  G01M11/086

    Abstract: A flexible pipe fatigue monitoring system (30) comprising a pipe monitoring system (32, 40, 42) adapted to be provided on a flexible pipe (10) having a bend stiff ener (18). The pipe monitoring system (40, 42) is provided on the pipe (10) below the bend stiffener (18). The monitoring system (32) measures one or more of bending, tension and torsion of the pipe (10). The pipe monitoring system (30) comprises sensor carrier members (40, 42) adapted to be coupled to the pipe (10) and at least one fibre Bragg grating strain sensor embedded in a carrier member (40, 42). An inclinometer (34) is provided on one carrier member (40) to measure the incline of the pipe (10) relative to earth. A central processor (38) is provided to receive bending, tension and torsion information and incline information, and is operable to determine pipe fatigue from said information. A method of flexible pipe fatigue monitoring is also provided.

    Abstract translation: 一种柔性管疲劳监测系统（30），包括适于设置在具有弯曲刚性环（18）的挠性管（10）上的管道监测系统（32,40,42）。 管道监控系统（40,42）设置在弯曲加强件（18）下方的管道（10）上。 监测系统（32）测量管道（10）的弯曲，张力和扭转中的一个或多个。 管道监测系统（30）包括适于联接到管道（10）的传感器载体构件（40,42）和嵌入载体构件（40,42）中的至少一个光纤布拉格光栅应变传感器。 倾斜计（34）设置在一个承载构件（40）上以测量管（10）相对于地面的倾斜。 中央处理器（38）被提供以接收弯曲，张力和扭转信息和倾斜信息，并且可操作以从所述信息确定管道疲劳。 还提供了一种柔性管疲劳监测的方法。

    SYSTEM AND METHOD FOR UNIFORM AND LOCALIZED WALL THICKNESS MEASUREMENT USING FIBER OPTIC SENSORS
    6.
    发明申请
    SYSTEM AND METHOD FOR UNIFORM AND LOCALIZED WALL THICKNESS MEASUREMENT USING FIBER OPTIC SENSORS 审中-公开
    使用光纤传感器进行均匀化和局部化厚度测量的系统和方法

    公开(公告)号：WO2010106336A1

    公开(公告)日：2010-09-23

    申请号：PCT/GB2010/000505

    申请日：2010-03-18

    Applicant: SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER CANADA LIMITED ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V. ,  COUPE Peter, John ,  ROBERTS, Damon ,  BELOV Dmitry ,  MYALO Evgeniya ,  FUKUHARA Masafumi ,  PICO Yamid ,  RAMOS Rogerio,Tadeu ,  PEIRCE Ian

    Inventor： COUPE Peter, John ,  ROBERTS, Damon ,  BELOV Dmitry ,  MYALO Evgeniya ,  FUKUHARA Masafumi ,  PICO Yamid ,  RAMOS Rogerio,Tadeu ,  PEIRCE Ian

    IPC: G01B11/16 ,  G01D5/353

    CPC classification number: G01B11/06 ,  G01B11/18 ,  G01B21/045 ,  G01D3/0365 ,  G01D5/35383 ,  G01L9/0032

    Abstract: A system and method are provided for determining wall thickness of a structure such as a metallic pressurized pipe. The system includes an optical fiber having a plurality of Fiber Bragg Gratings (FBGs), and a mounting for securing the FBGs over discrete portions of the exterior surface of the pipe such that strain in the pressurized pipe wall is transmitted to the FBGs. The system further includes a light source and a light sensor coupled to an end of the optical fiber. The light sensor converts light reflected back from the FBGs into electrical signals that a digital processor converts into strain measurements. The FBGs are mounted around portions of the pipe expected to have significant metal loss as well as portions of the pipe expected to have negligible metal loss. The method includes at least one of comparing relative strains at locations with negligible metal loss to those with significant metal loss to accurately determine the thickness of the wall with metal loss; compensating for temperature effects by considering relative strains at areas of the pipe with and without metal loss; and measuring axial strain on the pipe with one or more of the FBGs to correct for at least one of bending and torsion effects on hoop strain.

    Abstract translation: 提供了一种用于确定诸如金属加压管的结构的壁厚的系统和方法。 该系统包括具有多个光纤布拉格光栅（FBG）的光纤，以及用于将FBG固定在管的外表面的离散部分上的安装件，使得加压管壁中的应变传递到FBG。 该系统还包括耦合到光纤端部的光源和光传感器。 光传感器将从FBG反射回来的光转换为数字处理器转换为应变测量的电信号。 FBG安装在预期具有显着金属损失的管道周围，并且管道的部分预期具有可忽略的金属损失。 该方法包括将具有可忽略的金属损失的位置处的相对应变与具有显着金属损失的位置进行比较中的至少一个，以精确地确定具有金属损失的壁的厚度; 通过考虑在具有和不具有金属损失的管道的区域处的相对应变来补偿温度影响; 并用一个或多个FBG测量管道上的轴向应变，以校正环箍应变的弯曲和扭转效应中的至少一种。

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