Equipment and Methods for Determining Waiting-on-Cement Time in a Subterranean Well
    1.
    发明申请
    Equipment and Methods for Determining Waiting-on-Cement Time in a Subterranean Well 有权
    确定地下井中等待水泥时间的设备和方法

    公开(公告)号:US20130306308A1

    公开(公告)日:2013-11-21

    申请号:US13993322

    申请日:2011-12-07

    IPC分类号: E21B47/12 E21B33/14 E21B47/00

    摘要: Improved equipment and methods for determining the waiting-on-cement time after a cementing operation involve an optic-fiber coil that immersed in the cement slurry downhole. The intensity of a reflected light signal from the coil is monitored versus time. Attenuation of the reflected-light intensity corresponds to the development of gel strength, allowing operators to unambiguously determine when well-bore operations may recommence after a cement job. The optic-fibre coil is wound around a spool such that there is at least one coil crossing on the spool.

    摘要翻译: 用于确定固井作业后等待水泥时间的改进设备和方法包括浸入井下水泥浆中的光纤线圈。 监测来自线圈的反射光信号的强度与时间。 反射光强度的衰减对应于凝胶强度的发展,允许操作者明确地确定在水泥作业之后井眼操作可能重新开始。 光纤线圈缠绕在线轴上,使得在线轴上至少有一个线圈交叉。

    Equipment and methods for determining waiting-on-cement time in a subterranean well
    2.
    发明授权
    Equipment and methods for determining waiting-on-cement time in a subterranean well 有权
    用于确定地下井中等待水泥时间的设备和方法

    公开(公告)号:US09212548B2

    公开(公告)日:2015-12-15

    申请号:US13993322

    申请日:2011-12-07

    摘要: Improved equipment and methods for determining the waiting-on-cement time after a cementing operation involve an optic-fiber coil that immersed in the cement slurry downhole. The intensity of a reflected light signal from the coil is monitored versus time. Attenuation of the reflected-light intensity corresponds to the development of gel strength, allowing operators to unambiguously determine when well-bore operations may recommence after a cement job. The optic-fiber coil is wound around a spool such that there is at least one coil crossing on the spool.

    摘要翻译: 用于确定固井作业后等待水泥时间的改进设备和方法包括浸入井下水泥浆中的光纤线圈。 监测来自线圈的反射光信号的强度与时间。 反射光强度的衰减对应于凝胶强度的发展,允许操作者明确地确定在水泥作业之后井眼操作可能重新开始。 光纤线圈缠绕在线轴上,使得在线轴上至少有一个线圈交叉。

    METHOD FOR MONITORING CEMENT PLUGS
    3.
    发明申请
    METHOD FOR MONITORING CEMENT PLUGS 有权
    监测水泥浆的方法

    公开(公告)号:US20120073805A1

    公开(公告)日:2012-03-29

    申请号:US13129551

    申请日:2009-11-24

    IPC分类号: E21B47/005

    摘要: A method for method of monitoring the parameters of a cement plug (2) in a wellbore comprises; pumping a cement slurry down a wellbore to form a cement plug (2); providing a cable (1) through the cement plug (2) before the cement plug sets, wherein the cable comprises a sensor (4) for monitoring parameters of the cement plug; locating the sensor at the bottom of the cement plug (2); operating the sensor to measure parameters of the cement plug; and transmitting information regarding the measurement to the surface.

    摘要翻译: 一种用于监测井眼中的水泥塞(2)的参数的方法的方法包括: 将水泥浆料沿井筒泵送以形成水泥塞(2); 在水泥塞组之前通过水泥塞(2)提供电缆(1),其中电缆包括用于监测水泥塞的参数的传感器(4) 将传感器定位在水泥塞(2)的底部; 操作传感器测量水泥塞的参数; 并将关于测量的信息发送到表面。

    Method and apparatus for suspending a cable in a pipe
    4.
    发明授权
    Method and apparatus for suspending a cable in a pipe 有权
    将电缆悬挂在管道中的方法和装置

    公开(公告)号:US08857524B2

    公开(公告)日:2014-10-14

    申请号:US13129609

    申请日:2009-11-16

    IPC分类号: E21B19/084 E21B47/12

    CPC分类号: E21B47/123

    摘要: Apparatus (14) for supporting a cable (16) in a fluid-filled pipe (10) extending through an underground borehole, comprising a body for connection to an end of the cable extending along the pipe, the body being buoyant in the fluid filling the pipe, such that when the body is connected to the end of the pipe, it floats at or near the surface (15) of the fluid in the pipe. A method of supporting a cable in a fluid-filled pipe using such apparatus, comprises connecting the cable to the body, and dropping the body into the pipe so as to float on the surface of the fluid filing the pipe.

    摘要翻译: 用于将电缆(16)支撑在延伸穿过地下钻孔的流体填充的管道(10)中的装置(14),包括用于连接到沿着管道延伸的电缆的端部的主体,主体在流体填充物中浮起 管道,使得当主体连接到管道的端部时,其在管道中的流体的表面(15)处或附近浮动。 使用这种装置将电缆支撑在流体填充的管道中的方法包括将电缆连接到主体,并将主体下放到管中,以便浮动在填充管道的流体的表面上。

    Method And Apparatus For Suspending A Cable In A Pipe
    6.
    发明申请
    Method And Apparatus For Suspending A Cable In A Pipe 有权
    在管道中悬挂电缆的方法和装置

    公开(公告)号:US20110284244A1

    公开(公告)日:2011-11-24

    申请号:US13129609

    申请日:2009-11-16

    IPC分类号: E21B23/00 E21B19/02

    CPC分类号: E21B47/123

    摘要: Apparatus (14) for supporting a cable (16) in a fluid-filled pipe (10) extending through an underground borehole, comprising a body for connection to an end of the cable extending along the pipe, the body being buoyant in the fluid filling the pipe, such that when the body is connected to the end of the pipe, it floats at or near the surface (15) of the fluid in the pipe. A method of supporting a cable in a fluid-filled pipe using such apparatus, comprises connecting the cable to the body, and dropping the body into the pipe so as to float on the surface of the fluid filing the pipe.

    摘要翻译: 用于将电缆(16)支撑在延伸穿过地下钻孔的流体填充的管道(10)中的装置(14),包括用于连接到沿着管道延伸的电缆的端部的主体,主体在流体填充物中浮起 管道,使得当主体连接到管道的端部时,其在管道中的流体的表面(15)处或附近浮动。 使用这种装置将电缆支撑在流体填充的管道中的方法包括将电缆连接到主体,并将主体下放到管中,以便浮动在填充管道的流体的表面上。

    Automated cement mixing system
    7.
    发明授权
    Automated cement mixing system 有权
    自动水泥搅拌系统

    公开(公告)号:US06786629B2

    公开(公告)日:2004-09-07

    申请号:US10260332

    申请日:2002-09-30

    IPC分类号: B28C704

    摘要: A method for continuously mixing a borehole fluid such as cement includes using a measurement of the solid fraction of a cement slurry as it is being mixed to determine the ratio of the solid and liquid components to be added to the slurry. A system for mixing the slurry includes a liquid material (water) supply including a flow meter; a solid material (cement) supply; a mixer which receives the liquid and solid materials and includes an output for delivering materials from the mixer to a delivery system; a device for measuring the amount of material in the mixer; and a flow meter in the output; wherein measurements from the flow meters and the device for measuring the amount of material in the mixer are provided to a control system which provides control signals to automatically control the amount of solid and/or liquid material added to the mixer.

    摘要翻译: 用于连续混合井眼流体如水泥的方法包括在混合水泥浆料的固体分数的测量值时测定要添加到浆料中的固体和液体组分的比例。 用于混合浆料的系统包括:包括流量计的液体材料(水)供应; 固体材料(水泥)供应; 混合器,其接收液体和固体材料并且包括用于将材料从混合器输送到输送系统的输出; 用于测量混合器中材料量的装置; 和输出中的流量计; 其中来自流量计和用于测量混合器中的材料量的装置的测量值被提供给控制系统,该控制系统提供控制信号以自动控制添加到混合器中的固体和/或液体材料的量。

    Method and apparatus for analyzing a multi-phase flow in a hydrocarbon
well
    8.
    发明授权
    Method and apparatus for analyzing a multi-phase flow in a hydrocarbon well 失效
    用于分析烃井中多相流的方法和装置

    公开(公告)号:US4974446A

    公开(公告)日:1990-12-04

    申请号:US413426

    申请日:1989-09-27

    申请人: Pierre Vigneaux

    发明人: Pierre Vigneaux

    IPC分类号: E21B17/10 E21B47/10 G01N22/04

    摘要: This invention relates to methods and apparatus for analyzing a multi-phase fluid flowing along a hydrocarbon well in order to determine, at each depth, the average static proportion of one of the phases by means of a local measurement. At each depth the local static proportion of the phase under investigation is determined at a point in the flow, which point is situated on a circle having a radius r in the transverse -section corresponding to the depth, where the radius r is substantially equal to 0.7 R, and R is equal to radius of the well. The local static proportion at this point is related to the average static proportion by a determined relationship.

    Pressure and Measurement by Means of An Optical Fiber
    9.
    发明申请
    Pressure and Measurement by Means of An Optical Fiber 有权
    通过光纤的压力和测量

    公开(公告)号:US20120234101A1

    公开(公告)日:2012-09-20

    申请号:US13499287

    申请日:2010-10-08

    申请人: Pierre Vigneaux

    发明人: Pierre Vigneaux

    IPC分类号: G01L1/24 G02B6/34 G02B6/02

    摘要: An optical fiber (FD) that can be used for measuring pressure is arranged as follows. The optical fiber (FD) comprises a core (CO) and a cladding (CL) surrounding and contacting the core (CO). A stress-applying arrangement (SE1, SE2), which is embedded in the cladding (CL), applies constant anisotropic stress on the core (CO). This causes the core (CO) to exhibit a deformation. A pressure conversion arrangement (HO1, H02), which is also embedded in the cladding (CL), converts isotropic external pressure applied to the optical fiber (FD) into pressure-dependent anisotropic stress applied to the core (CO). The pressure conversion arrangement (HO1, H02) is disposed with respect to the stress-applying arrangement (SE1, SE2) so that the pressure-dependent anisotropic stress enhances the deformation of the core (CO) caused by the constant anisotropic stress.

    摘要翻译: 可用于测量压力的光纤(FD)如下。 光纤(FD)包括围绕并接触芯(CO)的芯(CO)和包层(CL)。 嵌入在包层(CL)中的应力施加装置(SE1,SE2)在芯(CO)上施加恒定的各向异性应力。 这使得芯(CO)表现出变形。 还包埋在包层(CL)中的压力转换装置(HO1,H02)将施加到光纤(FD)上的各向同性的外部压力转换为施加到芯(CO)的压力相关各向异性压力。 相对于应力施加装置(SE1,SE2)设置压力转换装置(HO1,H02),使得压力依赖各向异性应力增强由恒定的各向异性应力引起的芯(CO)的变形。

    METHODS AND APPARATUS FOR MEASURING RETURN FLOW IN A WELL
    10.
    发明申请
    METHODS AND APPARATUS FOR MEASURING RETURN FLOW IN A WELL 有权
    用于测量回流的方法和装置

    公开(公告)号:US20110094741A1

    公开(公告)日:2011-04-28

    申请号:US12936995

    申请日:2009-04-02

    IPC分类号: E21B47/12 E21B47/10

    摘要: The invention provides apparatus for use in a wellbore (32) made of a casing (30) and an annular (33) with a fluid within, comprising: a reel (40) of wound optic fiber line (10) fixed to an object (20) within the casing, and a light transmitter/receiver device (12) able to generate a signal through the optic fiber line and to measure a change of said signal; wherein the optic fiber line is: (a) on a first position fixed to a reference point (4) linked to the light transmitter/receiver device, and is (b) on a second position unwound from the reel; wherein the light transmitter/receiver device is able to measure the change of said signal when occurring at the second position; and the apparatus having a system able to measure the flow rate of the fluid exiting the annular at the surface level Q.

    摘要翻译: 本发明提供一种用于由壳体(30)制成的井眼(32)和具有流体的环形(33)的装置,包括:卷绕的光纤线(10)的卷轴(40),固定到物体 20),以及能够通过光纤线路产生信号并测量所述信号的变化的光发射器/接收器装置(12); 其中所述光纤线路是:(a)在固定到连接到所述光发射器/接收器装置的参考点(4)的第一位置上,并且(b)在从所述卷轴展开的第二位置上; 其中所述光发射器/接收器装置能够在所述第二位置发生时测量所述信号的变化; 并且该装置具有能够测量在表面级Q离开环形的流体的流量的系统。