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1. 发明申请

WO2007065667A1 AN ELECTROMAGNETIC IMAGING METHOD AND DEVICE 审中-公开
标题翻译：电磁成像方法和装置
公开(公告)号：WO2007065667A1
公开(公告)日：2007-06-14
申请号：PCT/EP2006/011730
申请日：2006-11-28
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER CANADA LIMITED , PRAD RESEARCH AND DEVELOPMENT N.V. , MOUGET, Pierre , LEGENDRE, Emmanuel , BRILL, Thilo
发明人： MOUGET, Pierre , LEGENDRE, Emmanuel , BRILL, Thilo
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： An electromagnetic imaging method for electromagnetically measuring physical parameters of a pipe CJ, CC by means of a plurality of measuring arrangement ZMA, MCMA, MonMa, ImMA comprising a plurality of transmitter coil ZTX, LFTX, DTX and a plurality of receiver coil ZRX1 , ZR2, MRX, MC, PRX1 , PRX2, PRX3, PRX4, PRX5, PRX6, PRX7, PRX8, PRX9, PRX10, PRX11 , PRX12, PRX13, PRX14, PRX15, PRX16, PRX17, PRX18, the transmitter coils and receiver coils being associated so as to form the plurality of measuring arrangement, the plurality of measuring arrangement being adapted to be positioned into the pipe and displaced through the pipe, the physical parameters being measured for a plurality of position along the pipe, the method comprising the steps of: a) determining a first value of an average ratio of magnetic permeability to electrical conductivity and a first value of an average inner diameter of the pipe Z-MES, b) determining an average electromagnetic thickness of the pipe MC-MES, c) determining a second value of the average ratio of magnetic permeability to electrical conductivity and a second value of the average inner diameter of the pipe Mon-MES according to excitation frequencies which are substantially lower than the excitation frequencies used to determine the first values Z-MES, d) determining a first image EMTIM of the pipe electromagnetic thickness and the pipe defects Im-MES, e) discriminating the defects at an inside perimeter of the pipe from the defects at an outside perimeter of the pipe Dis-MES, and f) forming a corrected first image IOFIM of the pipe taking into account a position of the defects.
摘要翻译：一种用于通过多个测量装置ZMA，MCMA，MonMa，ImMA电磁测量管道CJ，CC的物理参数的电磁成像方法，包括多个发射器线圈ZTX，LFTX，DTX和多个接收器线圈ZRX1，ZR2 ，MRX，MC，PRX1，PRX2，PRX3，PRX4，PRX5，PRX6，PRX7，PRX8，PRX9，PRX10，PRX11，PRX12，PRX13，PRX14，PRX15，PRX16，PRX17，PRX18，发射器线圈和接收器线圈相关联为了形成多个测量装置，多个测量装置适于定位到管中并且通过管移动，物理参数被测量为沿着管的多个位置，该方法包括以下步骤：a ）确定磁导率与电导率的平均比率和管Z-MES的平均内径的第一值的第一值，b）确定管MC-MES的平均电磁厚度，c）det 根据基本上低于用于确定第一值Z-MES的激发频率的激发频率，破坏磁导率与导电率的平均比率的第二值和管Mon-MES的平均内径的第二值 d）确定管电磁厚度的第一图像EMTIM和管缺陷Im-MES，e）区分管道内周的缺陷与管道Dis-MES的外周处的缺陷，以及f）考虑到缺陷的位置，形成管道的校正后的第一图像IOFIM。

2. 发明申请

WO2011000500A1 METHOD AND APPARATUS FOR REMOVAL OF THE DOUBLE INDICATION OF DEFECTS IN REMOTE EDDY CURRENT INSPECTION OF PIPES 审中-公开
标题翻译：用于移除远程EDDY检查管道中缺陷的双重指示的方法和装置
公开(公告)号：WO2011000500A1
公开(公告)日：2011-01-06
申请号：PCT/EP2010/003800
申请日：2010-06-25
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER CANADA LIMITED , PRAD RESEARCH AND DEVELOPMENT LIMITED A British Virgin Islands Company , LEGENDRE, Emmanuel , BRILL, Thilo , ROSTHAL, Richard , MINERBO, Gerald, N.
发明人： LEGENDRE, Emmanuel , BRILL, Thilo , ROSTHAL, Richard , MINERBO, Gerald, N.
IPC分类号： G01B7/06 , G01N27/90 , G01V3/28
CPC分类号： G01N27/902 , E21B47/082 , E21B49/003 , G01B7/10 , G01N27/9046 , G01N27/9073 , G01N27/9086
摘要： The apparatus employs the remote field eddy-current (RFEC) inspection technique to electromagnetically measure physical parameters of a metallic pipe. RFEC devices inserted into and displaced along a cylindrical pipes may be used to measure the ratio of pipe thickness to electromagnetic skin-depth and thus allow for the non-invasive detection of flaws or metal loss. Typically these RFEC thickness measurements exhibit a so-called double-indication of flaws, an undesired artifact due to a double-peaked geometrical sensitivity function of the device. The method describes a means by which this double indication artifact may be removed by an appropriate processing of RFEC measurements performed by an apparatus specifically designed for this purpose. The invention is particularly well designed for applications in the oilfield industry.
摘要翻译：该设备采用远场涡流（RFEC）检测技术对金属管道的物理参数进行电磁测量。可以使用沿圆柱形管插入和移位的RFEC装置来测量管厚度与电磁皮肤深度的比率，从而允许非侵入性检测缺陷或金属损失。通常，这些RFEC厚度测量表现出所谓的缺陷双重指示，这是由于设备的双峰几何灵敏度功能引起的不期望的伪像。该方法描述了通过由专门设计用于该目的的设备执行的RFEC测量的适当处理可以去除该双指示伪像的手段。本发明特别适用于油田工业的应用。

3. 发明申请

WO2006114208A1 A METHOD FOR ELECTROMAGNETICALLY MEASURING PHYSICAL PARAMETERS OF A PIPE 审中-公开
标题翻译：一种用于电磁测量管道的物理参数的方法
公开(公告)号：WO2006114208A1
公开(公告)日：2006-11-02
申请号：PCT/EP2006/003469
申请日：2006-04-05
申请人： SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B.V. , SCHUMBERGER HOLDINGS LIMITED , SCHLUMBERGER CANADA LIMITED , PRAD RESEARCH AND DEVELOPMENT NV , LEGENDRE, Emmanuel , BRILL, Thilo
发明人： LEGENDRE, Emmanuel , BRILL, Thilo
IPC分类号： E21B47/08 , G01B7/06
CPC分类号： E21B47/082 , G01B7/13 , G01N27/9046
摘要： The method electromagnetically measures a pipe inner diameter ID and a pipe ratio of magnetic permeability to electrical conductivity µ 2 /σ 2 by means of a measuring arrangement 1 comprising a transmitter coil 2 and a receiver coil 3, both coils being coaxial to and longitudinally spaced from each other, the measuring arrangement 1 being adapted to be positioned into the pipe CS and displaced through the pipe. The method comprises the steps of: a1) exciting the transmitter coil 2 by means of a transmitter current I1, the transmitter current having a first excitation frequency f 1, a2) measuring a receiver voltage V i at the receiver coil 3, a3) determining a transimpedance V i /l i between the transmitter coil 2 and the receiver coil 3 based on the transmitter current I i and the receiver voltage V1, and determining a measurement ratio M i based on said transimpedance, b) repeating the excitation step a1), the measuring step a2), the transimpedance and the measurement ratio determination step a3) for at least a second excitation frequency f 2 so as to define a measurement ratio vector [M 1 , M 2 , ... M n ], c) calculating a prediction function vector [G 1 , G 2 , ... G n ] based on the first and at least the second excitation frequency, a plurality of potential pipe ratio of magnetic permeability to electrical conductivity and a plurality of potential pipe inner diameter ID, and d) applying a minimizing algorithm onto the measurement ratio vector [M 1 , M 2 , ... M n ] and the prediction function vector [G 1, G 2 , ... G n ] and determining the pipe inner diameter and the pipe ratio of magnetic permeability to electrical conductivity corresponding to a maximum solution of the algorithm.
摘要翻译：该方法通过包括发射器线圈2的测量装置1电磁测量管内径ID和磁导率与导电率μ2/2/2的导通比和接收器线圈3，两个线圈彼此同轴并且纵向间隔开，测量装置1适于定位在管CS中并且通过管移动。该方法包括以下步骤：a1）通过发射器电流I1激励发射器线圈2，发射器电流具有测量接收器电压V SUB的第一激励频率f 1，...， i3在接收器线圈3处，a3）基于发射器电流确定发射器线圈2和接收器线圈3之间的跨阻抗V i / I i / 接收器电压V1，并且基于所述跨阻抗确定测量比M i i i，b）重复激励步骤a1），测量步骤a2），测量步骤a2）横向阻抗和测量比确定步骤a3），以便至少第二激励频率f 2 2，以便确定测量比矢量[M 1，M 2， / SUB>，... M n n]，c）计算预测函数向量[G 1，...，G 2，... G 基于第一和至少第二激发频率，多个电位管大鼠导磁率和多个电位管内径ID的磁导率，以及d）将最小化算法应用于测量比矢量[M 1，M 2] ... M N n]]>和预测函数向量[G 1，...，N 2，...，G N >]，并确定管内径和导磁率与电导率的管比相应于算法的最大解。

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