Pipeline apparatus and method
    11.
    发明授权

    公开(公告)号:US09939341B2

    公开(公告)日:2018-04-10

    申请号:US15029571

    申请日:2014-10-23

    IPC分类号: G01M3/18 G01M3/38

    摘要: A pipeline apparatus comprising a flexible pipe body and a detection apparatus. The flexible pipe body includes an optical fiber extending at least partially along the length of the flexible pipe body, the optical fiber being encased in a metal tube. The detection apparatus comprises an optical sensor and an electrical sensor. The optical sensor is coupled to a first end of the optical fiber, the optical sensor being arranged to inject optical pulses into the optical fiber and to detect scattered or reflected light. The electrical sensor is coupled to a first end of the metal tube and to detect variation of an electrical impedance between the first end of the metal tube and a separate terminal. Variation of the scattered or reflected light, or impedance variation, is indicative of a potential pipe body defect.

    Setting the value of an operational parameter of a well

    公开(公告)号:US09797229B2

    公开(公告)日:2017-10-24

    申请号:US13615936

    申请日:2012-09-14

    IPC分类号: G11B19/28 E21B43/12

    CPC分类号: E21B43/12

    摘要: A method of setting the value of an operational parameter of a well is provided. The method includes providing a measure related to the actual value of the parameter; setting a maximum limit for the measure; setting a minimum limit for the measure; setting a demanded value for the parameter; and automatically overriding the demanded value if it is such that it would result in the measure exceeding the maximum limit or being below the minimum limit to produce an actual value for the parameter with results in the measure not exceeding the maximum limit and not being below the minimum limit.

    Downhole temperature calculation
    14.
    发明授权

    公开(公告)号:US09739137B2

    公开(公告)日:2017-08-22

    申请号:US14254108

    申请日:2014-04-16

    IPC分类号: E21B47/06 G01K11/00 G01K7/42

    摘要: A method for calculating a value representative of a downhole temperature in a hydrocarbon well, wherein the well includes production tubing inside an outer tubing, an annulus is provided between the production tubing and the outer tubing, and the annulus receives a hydraulic control line supplying hydraulic fluid for the control of a downhole device, the method including sensing the pressure of hydraulic fluid in the control line at the wellhead, and using a measurement of the pressure to calculate the value representative of the downhole temperature.

    Testing a fuse
    15.
    发明授权

    公开(公告)号:US09720043B2

    公开(公告)日:2017-08-01

    申请号:US13729287

    申请日:2012-12-28

    摘要: A method of testing a fuse in apparatus for monitoring electrical insulation surrounding first and second electrical conductors in a cable, the fuse being connected to the conductors, comprises: applying an electrical signal, with respect to a reference, to the fuse from a source; obtaining a value for the resistance of the insulation with respect to the reference; determining if the resistance value is greater than a fuse test resistance threshold and, if it is, causing the application of the signal to cease; and monitoring the decay of the signal to determine if the time for it to decay below a set value exceeds a set time limit, indicative of the fuse being satisfactory, or is less than the limit indicative of the fuse being blown.

    Apparatus for flexible pipe body and method of producing same
    18.
    发明授权
    Apparatus for flexible pipe body and method of producing same 有权
    柔性管体装置及其制造方法

    公开(公告)号:US09556977B2

    公开(公告)日:2017-01-31

    申请号:US14046680

    申请日:2013-10-04

    发明人: John Cross McNab

    摘要: A sheath apparatus for housing tubes and/or cables, for incorporation into a flexible pipe body, including: an elongate body portion, comprising an outer surface and a channel for receiving a tube or cable within the body portion, and further comprising at least one opening connecting the channel and the outer surface, wherein the at least one opening comprises a continuous opening extending along the elongate body portion or a plurality of discrete openings at predetermined positions along the elongate body portion, and wherein the channel defines an inner surface of the body portion for contacting the tube or cable.

    摘要翻译: 一种用于容纳管和/或电缆的护套装置,用于结合到柔性管体中,包括:细长主体部分,包括外表面和用于在主体部分内容纳管或电缆的通道,并且还包括至少一个 连接通道和外表面的开口,其中所述至少一个开口包括沿着细长主体部分延伸的连续开口或沿着细长主体部分的预定位置处的多个离散开口,并且其中,该通道限定 主体部分用于接触管或电缆。

    Flexible pipe body and method of producing same
    20.
    发明授权
    Flexible pipe body and method of producing same 有权
    柔性管体及其制造方法

    公开(公告)号:US09500303B2

    公开(公告)日:2016-11-22

    申请号:US14369166

    申请日:2012-11-12

    IPC分类号: F16L11/16 F16L11/08 F16L11/24

    摘要: A flexible pipe body and method of producing a flexible pipe body are disclosed. The flexible pipe body includes a layer comprising a first elongate tape element and a further elongate tape element, the first and further tape elements being alternately wound in a helical manner such that each first tape element winding lies between further tape element windings, the first tape element having a cross sectional profile including a central body extending from a radially inner edge to a radially outer edge and first and further side lobes extending from the central body outwards along the radially inner edge, the further tape element having a cross sectional profile including a central body extending from a radially inner edge to a radially outer edge and first and further side lobes extending from the central body outwards along the radially outer edge, wherein a first side wall portion of the central body of the further tape element is provided in continuous sliding contact with one of the first or further side lobes of the first tape element.

    摘要翻译: 公开了柔性管体及柔性管体的制造方法。 柔性管体包括包括第一细长带元件和另一细长带元件的层,第一和另外的带元件以螺旋方式交替地卷绕,使得每个第一带元件绕组位于另一个带元件绕组之间,第一带 元件具有横截面轮廓,该横截面轮廓包括从径向内边缘延伸到径向外边缘的中心体,以及从中心体沿着径向内边缘向外延伸的第一和另外的旁瓣,所述另一带元件具有包括 中心体从径向内边缘延伸到径向外边缘,以及从中心体沿径向外边缘向外延伸的第一和另外侧裂片,其中另一带元件的中心体的第一侧壁部分连续地设置 与第一带元件的第一或另外的旁瓣之一滑动接触。