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    Pressure sensor assembly suitable for use in harsh environments
    3.
    发明授权
    Pressure sensor assembly suitable for use in harsh environments 有权
    适用于恶劣环境的压力传感器组件

    公开(公告)号：US07017417B2

    公开(公告)日：2006-03-28

    申请号：US10775273

    申请日：2004-02-10

    申请人： Guy A. Daigle

    发明人： Guy A. Daigle

    IPC分类号： G01L9/00

    CPC分类号： E21B47/06 ,  E21B47/011 ,  G01L11/025

    摘要： A sensor for sensing the pressure of a first fluid is provided. In one embodiment, sensor for sensing the pressure of a first fluid includes a fiber optic based sensing element disposed in a housing. A buffer fluid is disposed in the housing and is in fluid communication with the sensing element. A pressure transmitter is coupled to the housing for maintaining a predefined relationship between pressures of the first fluid and buffer fluid. A connector assembly is coupled to the housing and is coupled by an optical fiber is the sensing element. The sensor having a connector assembly is suitable for use in harsh conditions, such as within oil and gas well applications.

    摘要翻译： 提供了用于感测第一流体的压力的传感器。 在一个实施例中，用于感测第一流体的压力的传感器包括设置在壳体中的基于光纤的感测元件。 缓冲流体设置在壳体中并且与感测元件流体连通。 压力变送器联接到壳体，用于维持第一流体和缓冲流体的压力之间的预定关系。 连接器组件耦合到壳体并且通过光纤耦合是感测元件。 具有连接器组件的传感器适用于恶劣条件，例如在油气井应用中。

    Optical sensor device having creep-resistant optical fiber attachments
    4.
    发明授权
    Optical sensor device having creep-resistant optical fiber attachments 有权
    具有抗蠕变光纤附件的光学传感器装置

    公开(公告)号：US06768825B2

    公开(公告)日：2004-07-27

    申请号：US09873978

    申请日：2001-06-01

    申请人： Robert J. Maron ,  Guy A. Daigle ,  James R. Dunphy ,  Thomas W. Engel ,  John J. Grunbeck ,  Mark R. Fernald

    发明人： Robert J. Maron ,  Guy A. Daigle ,  James R. Dunphy ,  Thomas W. Engel ,  John J. Grunbeck ,  Mark R. Fernald

    IPC分类号： G02B600

    CPC分类号： G02B6/2552 ,  G01L1/246 ,  G01L9/0039 ,  G01L9/0077 ,  G01L11/025 ,  G02B6/02052 ,  G02B6/3644 ,  G02B6/3854 ,  G02B6/3861

    摘要： A method and device for pressure sensing using an optical fiber having a core, a cladding and a Bragg grating imparted in the core for at least partially reflecting an optical signal at a characteristic wavelength. The cladding has two variation regions located on opposite sides of the Bragg grating to allow attachment mechanisms to be disposed against the optical fiber. The attachment mechanisms are mounted to a pressure sensitive structure so as to allow the characteristic wavelength to change according to pressure in an environment. In particular, the variation region has a diameter different from the cladding diameter, and the attachment mechanism comprises a ferrule including a front portion having a profile substantially corresponding to at least a portion of the diameter of the variation region and a butting mechanism which holds the ferrule against the optical fiber.

    摘要翻译： 一种用于使用光纤的压力感测的方法和装置，所述光纤具有在芯中赋予的芯，包层和布拉格光栅，用于至少部分地反射特征波长的光信号。 包层具有位于布拉格光栅的相对侧上的两个变化区域，以允许将附着机构设置在光纤上。 附接机构安装在压敏结构上，以使特征波长根据环境中的压力而变化。 特别地，变化区域具有与包层直径不同的直径，并且附接机构包括套圈，该套圈包括具有基本上对应于变化区域的直径的至少一部分的轮廓的前部，以及保持 针对光纤的套圈。

    Accelerometer featuring fiber optic bragg grating sensor for providing multiplexed multi-axis acceleration sensing
    6.
    发明授权
    Accelerometer featuring fiber optic bragg grating sensor for providing multiplexed multi-axis acceleration sensing 失效
    具有光纤布拉格光栅传感器的加速度计，用于提供多路多轴加速度感测

    公开(公告)号：US06175108B1

    公开(公告)日：2001-01-16

    申请号：US09016258

    申请日：1998-01-30

    申请人： Richard T. Jones ,  Robert J. Maron ,  Guy A. Daigle

    发明人： Richard T. Jones ,  Robert J. Maron ,  Guy A. Daigle

    IPC分类号： G01P1500

    CPC分类号： G01P15/18 ,  G01P15/093

    摘要： An accelerometer has a main body in combination with one or more Bragg grating sensors respectively arranged along one or more axes. The main body has a mass that responds to an acceleration, for providing a force having a component in one or more axes. The Bragg grating sensor means responds to the force, and further responds to an optical signal, for providing a Bragg grating sensor signal containing information about the acceleration respectively in one or more axes. The one or more axes may include orthogonal axes such as the X, Y and Z Euclidian axes. In one embodiment, the main body includes a proof mass and a pair of flexure disks, each having an inner ring, an outer ring, and radial splines connecting the inner ring and the outer ring. The proof mass is slidably arranged between the flexure disks. The Bragg grating means has an optical fiber and a Bragg grating sensor arranged therein. A first end of the Bragg grating sensor is fixedly coupled by a first ferrule to the proof mass. A second end of the Bragg grating sensor is fixedly coupled by a second ferrule to a housing of the accelerometer. In operation, the compression or stretching of a Bragg grating sensor causes a wavelength shift in the optical signal that contains information about the acceleration and that is sensed by a detector.

    摘要翻译： 加速度计具有与沿一个或多个轴分别布置的一个或多个布拉格光栅传感器组合的主体。 主体具有响应于加速度的质量，用于提供具有一个或多个轴中的部件的力。 布拉格光栅传感器装置响应于力并进一步响应于光学信号，以分别在一个或多个轴中提供包含关于加速度的信息的布拉格光栅传感器信号。 一个或多个轴可以包括诸如X，Y和Z欧几里得轴之类的正交轴。 在一个实施例中，主体包括检测质量块和一对弯曲盘，每个挠性盘具有连接内圈和外圈的内圈，外圈和径向花键。 检测质量块可滑动地布置在弯曲盘之间。 布拉格光栅装置具有布置在其中的光纤和布拉格光栅传感器。 布拉格光栅传感器的第一端通过第一套圈固定到校验块。 布拉格光栅传感器的第二端通过第二套圈固定地耦合到加速度计的壳体。 在操作中，布拉格光栅传感器的压缩或拉伸导致包含关于加速度的信息并且由检测器感测的光信号中的波长偏移。

    Coiled tubing sensor system for delivery of distributed multiplexed sensors
    7.
    发明授权
    Coiled tubing sensor system for delivery of distributed multiplexed sensors 失效
    用于传送分布式多路传感器的卷管传感器系统

    公开(公告)号：US6009216A

    公开(公告)日：1999-12-28

    申请号：US964818

    申请日：1997-11-05

    申请人： Phillip Edmund Pruett ,  Arthur D. Hay ,  Guy A. Daigle

    发明人： Phillip Edmund Pruett ,  Arthur D. Hay ,  Guy A. Daigle

    IPC分类号： E21B17/20 ,  E21B47/01 ,  E21B47/12 ,  G01V1/52 ,  G01V11/00 ,  G02B6/00

    CPC分类号： E21B47/123 ,  E21B17/206 ,  E21B47/011 ,  G01V1/52 ,  G01V11/002

    摘要： Lengths of coiled tubing have sensor carrier elements mounted therebetween such that a plurality of sensor carrier elements are positioned along a length of coiled tubing. Each sensor carrier element carriers a sensor implemented with one or more intrinsic fiber optic sensor elements positioned therein for measuring one or more parameters in an environment. The intrinsic fiber optic sensor elements are multiplexed on one or more optical fibers along the length of the coiled tubing thereby forming a length of coiled tubing having a plurality of spaced apart sensors. The optical fiber or fibers positioned along the length of the coiled tubing are positioned in a fiber carrier which protects the fiber or fibers from the harsh environment. The fiber carrier may be interconnected to each of the sensors to isolate the fibers from the harsh environment. Each sensor carrier element provides the desired transmission of environmental conditions to the sensor carried therein, such as fluid communication, heat transmission, acoustic signal transmission, etc., such that the sensor contained in the sensor carrier element is responsive to a parameter of interest. A plurality of sensors may be serially connected to one another for distributed sensing of one or more parameters at multiple locations along the length of the coiled tubing. The sensor carrier elements are interconnected to the coiled tubing to provide a reliable and secure seal therebetween. The sensor carrier elements are configured to maintain the structural integrity of the coiled tubing while at the same time carrying a sensor implemented with an intrinsic fiber optic sensor element. The sensor carrier elements may be interconnected to the coiled tubing by press fit engagement, welding, fusion, and/or any other suitable method for providing a secure connection between the coiled tubing and the sensor carrier elements.

    摘要翻译： 连续油管的长度具有安装在其间的传感器载体元件，使得多个传感器载体元件沿着连续油管的长度定位。 每个传感器载体元件携带用一个或多个本征光纤传感器元件实现的传感器，其中定位在其中用于测量环境中的一个或多个参数。 固有的光纤传感器元件沿着连续油管的长度复合在一根或多根光纤上，从而形成一段具有多个间隔开的传感器的连续油管。 沿着连续油管的长度定位的光纤或纤维被定位在纤维载体中，纤维载体保护纤维或纤维免受恶劣环境的影响。 纤维载体可以互连到每个传感器以将纤维与恶劣环境隔离。 每个传感器载体元件将环境条件提供给其中携带的传感器，例如流体连通，热传递，声信号传输等，使得包含在传感器载体元件中的传感器响应感兴趣的参数。 多个传感器可以彼此串联连接，用于沿着连续油管的长度的多个位置分布式地感测一个或多个参数。 传感器载体元件互连到连续油管，以在其间提供可靠且牢固的密封。 传感器载体元件构造成保持连续油管的结构完整性，同时承载用本征光纤传感器元件实现的传感器。 传感器载体元件可以通过压配合接合，焊接，熔化和/或任何其它合适的方法与连续油管互连，以提供连续油管和传感器载体元件之间的牢固连接。

    DOWNHOLE CABLE GRIPPING/SHEARING DEVICE
    9.
    发明申请
    DOWNHOLE CABLE GRIPPING/SHEARING DEVICE 有权
    卧式电缆牵引/剪切装置

    公开(公告)号：US20100170675A1

    公开(公告)日：2010-07-08

    申请号：US12350659

    申请日：2009-01-08

    申请人： Guy A. Daigle ,  John J. Grunbeck

    发明人： Guy A. Daigle ,  John J. Grunbeck

    IPC分类号： E21B29/04 ,  E21B29/00

    CPC分类号： E21B29/04 ,  E21B17/026

    摘要： Embodiments of the present invention generally relate to methods and apparatuses for gripping and shearing a downhole cable. In one embodiment, a line cutter mandrel includes: a tubular mandrel; a pocket disposed along an outer surface of the mandrel and longitudinally coupled to the mandrel; a channel disposed through the pocket for receiving a cable; and a line cutter. The line cutter includes a blade, is operable to engage an outer surface of the cable in a gripping position, is operable to at least substantially sever the cable with the blade in a cutting position, and is operable from the gripping position to the cutting position by relative longitudinal movement between the cable and the pocket.

    摘要翻译： 本发明的实施例一般涉及用于夹紧和剪切井下电缆的方法和装置。 在一个实施例中，线切割器心轴包括：管状心轴; 沿所述心轴的外表面设置并纵向联接到所述心轴的口袋; 通过所述口袋设置的用于接收电缆的通道; 和线切割机。 线切割器包括刀片，其可操作以在夹持位置接合电缆的外表面，可操作以使刀片处于切割位置至少基本上切断电缆，并且可从夹持位置到切割位置操作 通过电缆和口袋之间的相对纵向运动。

    Creep-resistant optical fiber attachment
    10.
    发明授权
    Creep-resistant optical fiber attachment 失效
    抗蠕变光纤附件

    公开(公告)号：US06317555B1

    公开(公告)日：2001-11-13

    申请号：US09073701

    申请日：1998-05-06

    申请人： Robert J. Maron ,  Guy A. Daigle ,  James R. Dunphy ,  Thomas W. Engel ,  John J. Grunbeck ,  Mark R. Fernald ,  Charles W. Helm

    发明人： Robert J. Maron ,  Guy A. Daigle ,  James R. Dunphy ,  Thomas W. Engel ,  John J. Grunbeck ,  Mark R. Fernald ,  Charles W. Helm

    IPC分类号： G02B602

    CPC分类号： G02B6/3861 ,  G01L9/0039 ,  G01L9/0077 ,  G01L11/025 ,  G02B6/02052 ,  G02B6/2552 ,  G02B6/3644 ,  G02B6/3854

    摘要： A creep-resistant optical fiber attachment includes an optical fiber 10, having a cladding 12 and a core 14, having a variation region 16 (expanded or recessed) of an outer dimension on of the cladding and a structure, such as a ferrule 30, disposed against least a portion of the variation region 16. The fiber 10 is held in tension against the ferrule and the ferrule 30 has a size and shape that mechanically locks the ferrule 30 to the variation 16, thereby holding the fiber 10 in tension against the ferrule 30 with minimal relative movement (or creep) in at least one axail direction between the fiber 10 and the ferrule 30. The ferrule 30 may be attached to or part of a larger structure, such as a housing. The variation 16 and the ferrule 30 may have various different shapes and sizes. There may also be a buffer layer 18 between the cladding 12 and the ferrule 30 to protect the fiber 10 and/or to help secure the ferrule 30 to the fiber 10 to minimize creep.

    摘要翻译： 抗蠕变光纤附件包括具有包层12和芯14的光纤10，该包层12具有包层外部尺寸的变化区域16（扩展或凹陷）和诸如套圈30的结构， 设置在可变区域16的至少一部分上。纤维10被保持紧固在套圈上，并且套圈30具有将套圈30机械地锁定到变型16上的尺寸和形状，从而将纤维10保持紧固 套管30在纤维10和套管30之间的至少一个轴向方向上具有最小的相对运动（或蠕变）。套圈30可以附接到诸如壳体的较大结构的一部分。 变型16和套圈30可以具有各种不同的形状和尺寸。 在包层12和套管30之间还可以存在缓冲层18，以保护纤维10和/或有助于将套圈30固定到纤维10上以使蠕变最小化。