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20 条记录 (耗时 0.064 秒)

    Methods for sourceless density downhole measurement using pulsed neutron generator
    7.
    发明授权
    Methods for sourceless density downhole measurement using pulsed neutron generator 有权
    使用脉冲中子发生器的无源密度井下测量方法

    公开(公告)号：US08476584B2

    公开(公告)日：2013-07-02

    申请号：US13222152

    申请日：2011-08-31

    申请人： Fusheng Li ,  Xiaogang Han

    发明人： Fusheng Li ,  Xiaogang Han

    IPC分类号： G01V5/10

    CPC分类号： G01V5/101

    摘要： Disclosed is a method for estimating a density of an earth formation penetrated by a borehole. The method includes: emitting a pulse of fast neutrons into the formation during a neutron-pulse time interval; detecting gamma-rays due to inelastic scattering and thermal capture of the emitted neutrons in the formation to provide a gamma-ray energy spectrum due to the inelastic scattering and the thermal capture during a first time interval within the neutron-pulse time interval and to provide a time spectrum of counts or count rates due to thermal capture during a second time interval occurring after the neutron-pulse time interval; determining a macroscopic capture cross section of the formation from a decay in the time spectrum of counts or count rates; determining an elemental weight fraction from the gamma-ray energy spectrum; and estimating the density of the formation using the macroscopic capture cross section and the elemental weight fraction.

    摘要翻译： 公开了一种用于估计钻孔渗透的地层的密度的方法。 该方法包括：在中子脉冲时间间隔期间，将快中子脉冲发射到地层中; 由于在中子脉冲时间间隔期间的第一时间间隔期间由于非弹性散射和热捕获而在地层中发射的中子的非弹性散射和热捕获来检测γ射线以提供伽马射线能谱，并提供 在中子脉冲时间间隔后发生的第二时间间隔期间由于热捕获引起的计数或计数率的时间谱; 从计数或计数率的时间谱中的衰减确定地层的宏观捕获截面; 从伽马射线能谱确定元素重量分数; 并使用宏观捕获截面和元素重量分数来估计地层的密度。

    APPARATUS AND METHOD FOR ESTIMATING FORMATION LITHOLOGY USING X-RAY FLOURESCENCE
    8.
    发明申请
    APPARATUS AND METHOD FOR ESTIMATING FORMATION LITHOLOGY USING X-RAY FLOURESCENCE 有权
    使用X射线衍射估算地层岩石的装置和方法

    公开(公告)号：US20130066605A1

    公开(公告)日：2013-03-14

    申请号：US13409289

    申请日：2012-03-01

    申请人： Fusheng Li

    发明人： Fusheng Li

    IPC分类号： G06F17/10 ,  G01N23/223

    CPC分类号： E21B49/06 ,  E21B49/10 ,  G01N23/223 ,  G01N33/241 ,  G01N2223/076

    摘要： An apparatus for estimating properties of an earth formation includes a carrier configured to be disposed in a borehole in the earth formation, and a sample retriever configured to remove a sample of the earth formation, the sample including solid components of the earth formation. The apparatus also includes an analysis assembly including a chamber disposed with the carrier and configured to hold the sample, an X-ray source configured to irradiate the sample with X-ray radiation while the sample is disposed in the chamber, and one or more X-ray detectors configured to detect radiation emitted from the sample in response to irradiation from the X-ray source.

    摘要翻译： 用于估计地层的性质的装置包括构造成设置在地层中的钻孔中的载体和被构造成移除地层的样品的样本捕获器，样品包括地层的固体组分。 该装置还包括分析组件，其包括设置有载体并被配置为保持样品的腔室; X射线源，被配置为在样品设置在腔室中时用X射线辐射照射样品，以及一个或多个X 射线检测器被配置为响应于来自X射线源的照射来检测从样品发射的辐射。

    AUTO GRID MOVING DEVICE FOR DIAGNOSTIC X RAY TABLE
    9.
    发明申请
    AUTO GRID MOVING DEVICE FOR DIAGNOSTIC X RAY TABLE 有权
    自动网格移动装置，用于诊断X射线表

    公开(公告)号：US20120275570A1

    公开(公告)日：2012-11-01

    申请号：US13436842

    申请日：2012-03-31

    申请人： Yuqing Li ,  Fusheng Li ,  Yingjie Jia ,  Weining Xi

    发明人： Yuqing Li ,  Fusheng Li ,  Yingjie Jia ,  Weining Xi

    IPC分类号： G21K1/00

    CPC分类号： A61B6/583 ,  A61B6/0457 ,  A61B6/4291

    摘要： An auto grid moving apparatus for an X ray imaging device is provided. The apparatus includes: a grid; a grid holder on which the grid is disposed; a fixing base; and a double sided timing belt geared with at least two timing wheels at the two ends of the timing belt on the inner side face of the timing belt and geared with the grid holder at the outer side face of the timing belt, wherein one of the timing wheels has a motor disposed thereon, the motor being configured to drive the timing wheel to move the timing belt and to drive the grid holder to move.

    摘要翻译： 提供了一种用于X射线成像装置的自动格栅移动装置。 该装置包括：电网; 栅格架设在其上; 固定底座; 以及双面正时皮带，其在正时皮带的内侧面上的同步皮带的两端处至少两个同步轮，并且与同步皮带的外侧面上的格架保持架相配合，其中， 定时轮具有设置在其上的电动机，该电动机构造成驱动正时轮以移动正时带并驱动电网架移动。