Method and apparatus for azimuthal logging of shear waves in boreholes using optionally rotatable transmitter and receiver assemblies
    1.
    发明申请
    Method and apparatus for azimuthal logging of shear waves in boreholes using optionally rotatable transmitter and receiver assemblies 有权
    使用可选择的可旋转发射器和接收器组件在钻孔中方位测井剪切波的方法和装置

    公开(公告)号:US20070140055A1

    公开(公告)日:2007-06-21

    申请号:US11316024

    申请日:2005-12-21

    IPC分类号: G01V1/40

    CPC分类号: G01V1/44

    摘要: An acoustic logging system with a borehole tool comprising a transmitter assembly and an axially spaced receiver assembly. The transmitter and receiver assemblies are optionally rotatable with respect to each other, depending upon the embodiment of the logging system. The logging system is designed to measure, among other parameters, the velocity (or slowness) and amplitude of shear wave energy induced by the transmitter assembly within formation penetrated by the borehole. These parameters are extracted from full wave acoustic data responses of receiver elements comprising the receiver assembly, and are measured as a function of azimuth around the borehole. These parameters are subsequently used to determine anisotropic properties of the formation, such as the azimuthal direction of formation fracturing with respect to the well borehole. Optional rotation of the transmitter and receiver assemblies minimizes adverse effects of maintaining calibration and balance of multiple transmitters and receivers

    摘要翻译: 具有钻孔工具的声学测井系统,包括发射器组件和轴向间隔开的接收器组件。 取决于测井系统的实施例,发射器和接收器组件可选地相对于彼此可旋转。 测井系统设计用于测量由钻孔穿透的地层内由发射器组件引起的剪切波能量的速度(或慢度)和振幅。 从包括接收器组件的接收器元件的全波声学数据响应中提取这些参数,并且被测量为围绕钻孔的方位角的函数。 这些参数随后用于确定地层的各向异性特性,例如相对于井眼的地层压裂的方位角方向。 发射器和接收器组件的可选旋转可最大限度地减少维持多个发射器和接收器的校准和平衡的不利影响

    ULTRASONIC CEMENT SCANNER
    2.
    发明申请
    ULTRASONIC CEMENT SCANNER 审中-公开
    超声波水泥扫描仪

    公开(公告)号:US20060262643A1

    公开(公告)日:2006-11-23

    申请号:US11461660

    申请日:2006-08-01

    IPC分类号: G01V1/40

    CPC分类号: G01V1/44 E21B47/0005

    摘要: An acoustic borehole logging system for parameters of a well borehole environs. Full wave acoustic response of a scanning transducer is used to measure parameters indicative of condition of a tubular lining the well borehole, the bonding of the tubular to material filling an annulus formed by the outside surface of the tubular and the wall of the borehole, the distribution of the material filling the annulus, and thickness of the tubular. A reference transducer is used to correct measured parameters for variations in acoustic impedance of fluid filling the borehole, and for systematic variations in the response of the scanning transducer. Corrections are made in real time. The downhole tool portion of the logging system is operated essentially centralized in the borehole using a centralizer that can be adjusted for operation in a wide range of borehole sizes.

    摘要翻译: 用于井眼周围参数的声学井眼测井系统。 扫描传感器的全波声响应用于测量指示井筒的管状衬里的状态的参数,将管状物与填充由管的外表面和钻孔壁形成的环的材料结合, 填充环空的材料的分布和管的厚度。 参考传感器用于校正测量参数,用于填充钻孔的流体的声阻抗的变化,以及扫描传感器响应的系统变化。 校正是实时进行的。 记录系统的井下工具部分基本上集中在钻孔中,使用可以在大范围的钻孔尺寸中进行调节的扶正器。

    Ultrasonic cement scanner
    3.
    发明申请
    Ultrasonic cement scanner 审中-公开
    超声波水泥扫描仪

    公开(公告)号:US20060067162A1

    公开(公告)日:2006-03-30

    申请号:US10954124

    申请日:2004-09-29

    IPC分类号: G01V1/40

    CPC分类号: G01V1/44 E21B47/0005

    摘要: An acoustic borehole logging system for parameters of a well borehole environs. Full wave acoustic response of a scanning transducer is used to measure parameters indicative of condition of a tubular lining the well borehole, the bonding of the tubular to material filling an annulus formed by the outside surface of the tubular and the wall of the borehole, the distribution of the material filling the annulus, and thickness of the tubular. A reference transducer is used to correct measured parameters for variations in acoustic impedance of fluid filling the borehole, and for systematic variations in the response of the scanning transducer. Corrections are made in real time. The downhole tool portion of the logging system is operated essentially centralized in the borehole using a centralizer that can be adjusted for operation in a wide range of borehole sizes.

    摘要翻译: 用于井眼周围参数的声学井眼测井系统。 使用扫描传感器的全波声响应来测量指示井筒的管状衬里的状态的参数,将管道与填充由管的外表面和钻孔壁形成的环的材料结合, 填充环空的材料的分布和管的厚度。 参考传感器用于校正测量参数,用于填充钻孔的流体的声阻抗的变化,以及扫描传感器响应的系统变化。 校正是实时进行的。 记录系统的井下工具部分基本上集中在钻孔中,使用可以在大范围的钻孔尺寸中进行调节的扶正器。

    Borehole apparatus and methods for simultaneous multimode excitation and reception to determine elastic wave velocities, elastic modulii, degree of anisotropy and elastic symmetry configurations
    4.
    发明申请
    Borehole apparatus and methods for simultaneous multimode excitation and reception to determine elastic wave velocities, elastic modulii, degree of anisotropy and elastic symmetry configurations 有权
    井眼装置和同时多模式激发和接收的方法,用于确定弹性波速度,弹性模量,各向异性程度和弹性对称构型

    公开(公告)号:US20070183259A1

    公开(公告)日:2007-08-09

    申请号:US11348216

    申请日:2006-02-06

    IPC分类号: G01V1/00

    CPC分类号: G01V1/44

    摘要: An acoustic borehole logging system for generation and detection of multipole modes used to determine elastic properties of earth formations characterized as inhomogeneous anisotropic solids. The system concurrently generates and senses monopole, dipole, quadrupole and any higher order pole in the borehole/formation system in order to characterize the elastic properties and stress state of material penetrated by the borehole. Multipole modes of all orders are induced simultaneously without the need for separate transmitter and receiver systems. Performance of the logging system is not compromised due to eccentering of the axis of the tool in the borehole, tool tilt with respect to the axis of the borehole, or mismatch of response sensitivity of multiple receivers within the tool. The system comprises apparatus for generating and sensing acoustic signals in a borehole in an earth formation, and further comprises a processing method by which the sensor response signals are processed and analyzed to obtain desired formation parameters of interest.

    摘要翻译: 用于产生和检测用于确定地层的弹性性质的多极模式的声学井眼测井系统,其特征在于不均匀的各向异性固体。 该系统同时产生并感测井眼/地层系统中的单极,偶极子,四极杆和任何更高的极点,以便表征钻孔渗透的材料的弹性和应力状态。 所有订单的多极模式可以同时引导,而不需要单独的发送器和接收器系统。 测井系统的性能不会因钻孔中工具轴线偏心,相对于钻孔轴线倾斜或工具内多个接收器的响应灵敏度不匹配而受损。 该系统包括用于在地层中的钻孔中产生和感测声信号的装置,并且还包括处理方法,通过该方法对传感器响应信号进行处理和分析,以获得期望的感兴趣的地层参数。

    Multi-Channel Detector Assembly for Downhole Spectroscopy
    6.
    发明申请
    Multi-Channel Detector Assembly for Downhole Spectroscopy 有权
    用于井下光谱的多通道检测器组件

    公开(公告)号:US20110108720A1

    公开(公告)日:2011-05-12

    申请号:US12613808

    申请日:2009-11-06

    IPC分类号: G01V8/10 G01J3/42

    摘要: A multi-channel detector assembly for downhole spectroscopy has a reference detector unit optically coupled to a reference channel of a source and has a measurement detector unit optically coupled to a measurement channel of the source. The reference and measurement detectors detect spectral signals across a spectral range of wavelengths from the reference and measurement channels. Conversion circuitry converts the detected spectral signals into reference signals and measurement signals, and control circuitry processes the reference and measurements signals based on a form of encoding used by the source. Then, the control circuitry can control the output of spectral signals from the source based on the processed signals or scale the measurement signal to correct for source fluctuations or changes in environmental conditions.

    摘要翻译: 用于井下光谱的多通道检测器组件具有光学耦合到源的参考通道的参考检测器单元,并且具有光学耦合到源的测量通道的测量检测器单元。 参考和测量检测器检测来自参考和测量通道的波长范围内的光谱信号。 转换电路将检测到的频谱信号转换为参考信号和测量信号,并且控制电路基于源使用的编码形式处理参考和测量信号。 然后,控制电路可以基于经处理的信号来控制来自源的频谱信号的输出,或者缩放测量信号以校正源波动或环境条件的变化。

    Multi-channel detector assembly for downhole spectroscopy
    9.
    发明授权
    Multi-channel detector assembly for downhole spectroscopy 有权
    用于井下光谱的多通道探测器组件

    公开(公告)号:US08735803B2

    公开(公告)日:2014-05-27

    申请号:US12613808

    申请日:2009-11-06

    IPC分类号: G01V5/04

    摘要: A multi-channel detector assembly for downhole spectroscopy has a reference detector unit optically coupled to a reference channel of a source and has a measurement detector unit optically coupled to a measurement channel of the source. The reference and measurement detectors detect spectral signals across a spectral range of wavelengths from the reference and measurement channels. Conversion circuitry converts the detected spectral signals into reference signals and measurement signals, and control circuitry processes the reference and measurements signals based on a form of encoding used by the source. Then, the control circuitry can control the output of spectral signals from the source based on the processed signals or scale the measurement signal to correct for source fluctuations or changes in environmental conditions.

    摘要翻译: 用于井下光谱的多通道检测器组件具有光学耦合到源的参考通道的参考检测器单元,并且具有光学耦合到源的测量通道的测量检测器单元。 参考和测量检测器检测来自参考和测量通道的波长范围内的光谱信号。 转换电路将检测到的频谱信号转换为参考信号和测量信号,并且控制电路基于源使用的编码形式处理参考和测量信号。 然后,控制电路可以基于经处理的信号来控制来自源的频谱信号的输出,或者缩放测量信号以校正源波动或环境条件的变化。

    Refractive index sensor for fluid analysis
    10.
    发明授权
    Refractive index sensor for fluid analysis 有权
    用于流体分析的折射率传感器

    公开(公告)号:US08542353B2

    公开(公告)日:2013-09-24

    申请号:US12894324

    申请日:2010-09-30

    IPC分类号: G01N21/41 G01N21/55

    CPC分类号: G01N21/43 G01N2021/434

    摘要: A refractive index sensor having one or more sources, an adaptive optical element or scanner, imaging optics, a sensing optic, and one or more detectors. The scanner impinges a signal from the source into the sensing optic and onto a sensor-sample interface at sequential angles of incidence. The detector response increases dramatically to signals reflected from the interface at corresponding sequential angles of reflection equal to or greater than a critical angle. The refractive index sensor also uses an input lens between the scanner and the sensing optic and uses an output lens between the sensing optic and the detector. A processor controls the sensor and can determine index of refraction of the fluid sample based on the detector response and scan rate. The sensor can be used in several operational environments from a laboratory to a downhole tool, such as a formation tester to determine properties in a borehole environment.

    摘要翻译: 具有一个或多个源的折射率传感器,自适应光学元件或扫描仪,成像光学器件,感测光学器件和一个或多个检测器。 扫描仪将来自源的信号以连续的入射角入射到感测光学器件中并传送到传感器样品接口上。 检测器响应显着地增加了在相应的连续反射角度等于或大于临界角的从界面反射的信号。 折射率传感器还在扫描仪和感测光学器件之间使用输入透镜,并在传感光学元件和检测器之间使用输出透镜。 处理器控制传感器并且可以基于检测器响应和扫描速率确定流体样品的折射率。 传感器可用于从实验室到井下工具的若干操作环境中,例如地层测试仪,以确定井眼环境中的性质。