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公开(公告)号：US08907270B2
公开(公告)日：2014-12-09
申请号：US13304381
申请日：2011-11-24
申请人： Sicco Beekman , Tong Zhou , Christian Stoller , Fabien Haranger
发明人： Sicco Beekman , Tong Zhou , Christian Stoller , Fabien Haranger
IPC分类号： G01V5/10
摘要： Methods and systems to determine and regulate the gain of gamma-ray detectors in tools equipped with neutron sources are provided. Gain regulation may be based on the gamma ray background generated in the tool by interaction of neutrons with the nuclei of some elements constituting the tool structure. Some chemical elements that are used in construction of the tool's mechanical parts and structure result in characteristic gamma ray lines in a measured energy spectrum. These lines can be used to calibrate the energy scale of the response of the detector, without any added calibration radio isotopic source.
摘要翻译： 提供了确定和调节装备有中子源的工具中伽马射线探测器增益的方法和系统。 增益调节可以基于通过中子与构成工具结构的一些元素的核的相互作用在工具中产生的伽马射线背景。 用于构建工具的机械部件和结构的一些化学元素导致测量能谱中的特征伽马射线。 这些线路可用于校准检测器响应的能量标度，无需任何附加的校准射线同位素源。
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公开(公告)号：US20130134304A1
公开(公告)日：2013-05-30
申请号：US13304381
申请日：2011-11-24
申请人： Sicco Beekman , Tong Zhou , Christian Stoller , Fabien Haranger
发明人： Sicco Beekman , Tong Zhou , Christian Stoller , Fabien Haranger
IPC分类号： G01V5/10
摘要： Methods and systems to determine and regulate the gain of gamma-ray detectors in tools equipped with neutron sources are provided. Gain regulation may be based on the gamma ray background generated in the tool by interaction of neutrons with the nuclei of some elements constituting the tool structure. Some chemical elements that are used in construction of the tool's mechanical parts and structure result in characteristic gamma ray lines in a measured energy spectrum. These lines can be used to calibrate the energy scale of the response of the detector, without any added calibration radio isotopic source.
摘要翻译： 提供了确定和调节装备有中子源的工具中伽马射线探测器增益的方法和系统。 增益调节可以基于通过中子与构成工具结构的一些元素的核的相互作用在工具中产生的伽马射线背景。 用于构建工具的机械部件和结构的一些化学元素导致测量能谱中的特征伽马射线。 这些线路可用于校准检测器响应的能量标度，无需任何附加的校准射线同位素源。
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3.发明授权公开(公告)号：US08884216B2
公开(公告)日：2014-11-11
申请号：US13994870
申请日：2011-12-16
申请人： Sicco Beekman , Tong Zhou , Christian Stoller
发明人： Sicco Beekman , Tong Zhou , Christian Stoller
摘要： A method of formation evaluation using a pulsed neutron tool. The approach removes the effect of formation hydrogen index (HI) from the nuclear response of the tool. It can be used for gas detection and quantification, as well as for other fluids. It can also be used to improve a formation hydrogen index (HI) measurement.
摘要翻译： 使用脉冲中子工具的地层评价方法。 该方法从工具的核响应中消除了形成氢指数（HI）的影响。 它可用于气体检测和定量，也可用于其他流体。 它也可用于改善地层氢指数（HI）测量。
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4.发明申请公开(公告)号：US20140001350A1
公开(公告)日：2014-01-02
申请号：US13994870
申请日：2011-12-16
申请人： Sicco Beekman , Tong Zhou , Christian Stoller
发明人： Sicco Beekman , Tong Zhou , Christian Stoller
IPC分类号： G01V5/10
摘要： A method of formation evaluation using a pulsed neutron tool. The approach removes the effect of formation hydrogen index (HI) from the nuclear response of the tool. It can be used for gas detection and quantification, as well as for other fluids. It can also be used to improve a formation hydrogen index (HI) measurement.
摘要翻译： 使用脉冲中子工具的地层评价方法。 该方法从工具的核响应中消除了形成氢指数（HI）的影响。 它可用于气体检测和定量，也可用于其他流体。 它也可用于改善地层氢指数（HI）测量。
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公开(公告)号：US20120126106A1
公开(公告)日：2012-05-24
申请号：US13330211
申请日：2011-12-19
申请人： Tong Zhou , David Rose , Sicco Beekman , Christian Stoller
发明人： Tong Zhou , David Rose , Sicco Beekman , Christian Stoller
摘要： A tool having a neutron source, a gamma ray detector, and a photomultiplier tube is provided. The gamma ray detector and the photomultiplier tube are at least partially surrounded by a layer of boron. The tool is used to make measurements, and the number of prompt gamma rays emitted by the boron is determined from the measurements. The number of neutrons detected may be inferred using the determined number of prompt gamma rays. The tool may also have a layer of neutron absorbing material different from boron or a layer of heavy metal at least partially surrounding the boron. The tool may be a logging tool used to delineate a porous formation and to determine its porosity. The tool may have a plurality of gamma ray detector/photomultiplier tube pairs and those pairs may be used to determine a formation hydrogen index and/or a borehole hydrogen index.
摘要翻译： 提供具有中子源，伽马射线检测器和光电倍增管的工具。 γ射线检测器和光电倍增管至少部分地被一层硼包围。 该工具用于进行测量，并且从测量确定由硼发射的迅速γ射线的数量。 可以使用确定数量的快速γ射线来推断检测到的中子数。 该工具还可以具有不同于硼的中子吸收材料层或至少部分地围绕硼的重金属层。 该工具可以是用于描绘多孔结构并确定其孔隙度的测井工具。 该工具可以具有多个伽马射线检测器/光电倍增管对，并且这些对可用于确定地层氢指数和/或井眼氢指数。
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公开(公告)号：US09304214B2
公开(公告)日：2016-04-05
申请号：US13330211
申请日：2011-12-19
申请人： Tong Zhou , David Rose , Sicco Beekman , Christian Stoller
发明人： Tong Zhou , David Rose , Sicco Beekman , Christian Stoller
摘要： A tool having a neutron source, a gamma ray detector, and a photomultiplier tube is provided. The gamma ray detector and the photomultiplier tube are at least partially surrounded by a layer of boron. The tool is used to make measurements, and the number of prompt gamma rays emitted by the boron is determined from the measurements. The number of neutrons detected may be inferred using the determined number of prompt gamma rays. The tool may also have a layer of neutron absorbing material different from boron or a layer of heavy metal at least partially surrounding the boron. The tool may be a logging tool used to delineate a porous formation and to determine its porosity. The tool may have a plurality of gamma ray detector/photomultiplier tube pairs and those pairs may be used to determine a formation hydrogen index and/or a borehole hydrogen index.
摘要翻译： 提供具有中子源，伽马射线检测器和光电倍增管的工具。 γ射线检测器和光电倍增管至少部分地被一层硼包围。 该工具用于进行测量，并且从测量确定由硼发射的迅速γ射线的数量。 可以使用确定数量的快速γ射线来推断检测到的中子数。 该工具还可以具有不同于硼的中子吸收材料层或至少部分地围绕硼的重金属层。 该工具可以是用于描绘多孔结构并确定其孔隙度的测井工具。 该工具可以具有多个伽马射线检测器/光电倍增管对，并且这些对可用于确定地层氢指数和/或井眼氢指数。
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公开(公告)号：US20130206972A1
公开(公告)日：2013-08-15
申请号：US13807694
申请日：2011-06-26
申请人： Tong Zhou , David Rose , Sicco Beekman , Christian Stoller
发明人： Tong Zhou , David Rose , Sicco Beekman , Christian Stoller
摘要： A method is provided to detect neutrons using a boron-shielded gamma-ray detector, which will detect the 0.48-MeV prompt gamma ray due to the 10B (n,α)7Li reaction. The gamma ray detector can be a proportional gas counter, a scintillation based detector, or a semiconductor detector. Monoenergetic prompt gammas will produce a sharp peak in the pulse height spectrum of a gamma-ray spectroscopy detector. By surrounding a gamma detector with a layer containing 10B, we can measure the gamma signal and neutron signal at the same time and at the same physical location in an instrument. The approach can be used to measure neutron porosity simultaneous with gamma-ray counting or spectroscopy at the same location as long as the 0.48-keV gamma-ray from the neutron reaction does not interfere with the gamma-ray measurement.
摘要翻译： 提供了一种使用硼屏蔽伽马射线检测器检测中子的方法，该检测器将检测由于10B（n，α）7Li反应而导致的0.48-MeV提示γ射线。 γ射线检测器可以是比例气体计数器，基于闪烁的检测器或半导体检测器。 单能提示伽马将在伽马射线光谱检测器的脉冲高度谱中产生尖锐的峰值。 通过围绕包含10B的层的伽马检测器，我们可以在仪器的同一时间和相同的物理位置测量伽马信号和中子信号。 只要来自中子反应的0.48keV伽马射线不干扰伽马射线测量，该方法可以用于在相同位置处与伽马射线计数或光谱同时测量中子孔隙。
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公开(公告)号：US20090153079A1
公开(公告)日：2009-06-18
申请号：US11957228
申请日：2007-12-14
CPC分类号： H05H11/00
摘要： A Betatron having a toroidal passageway disposed in a cyclical magnetic field with a main electron orbit circumnavigating the toroidal passageway. Within the toroidal passageway is a first electrode that is spaced apart from a second electrode. The combination of the first electrode and the second electrode define a central space having a first opening and a second opening. A cathode is disposed within the central space. This cathode has a first electron emitter aligned to inject electrons through the first opening and a second electron emitter aligned to inject electrons through the second opening. Electrons injected in a proper direction are accelerated in the main electron orbit. At a time of maximum electron acceleration, the electrons are deflected and impact a target that generates x-rays on impact.
摘要翻译： 具有设置在循环磁场中的环形通道的贝塔通管，其环绕环形通道环绕主电子轨道。 在环形通道内是与第二电极间隔开的第一电极。 第一电极和第二电极的组合限定了具有第一开口和第二开口的中心空间。 阴极设置在中心空间内。 该阴极具有对准的第一电子发射体，以通过第一开口注入电子，并且第二电子发射器对准以通过第二开口注入电子。 在主电子轨道上加速沿适当方向注入的电子。 在最大电子加速时，电子被偏转并撞击在撞击时产生X射线的靶。
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公开(公告)号：US07916838B2
公开(公告)日：2011-03-29
申请号：US11957228
申请日：2007-12-14
IPC分类号： H05G1/52
CPC分类号： H05H11/00
摘要： A Betatron having a toroidal passageway disposed in a cyclical magnetic field with a main electron orbit circumnavigating the toroidal passageway. Within the toroidal passageway is a first electrode that is spaced apart from a second electrode. The combination of the first electrode and the second electrode define a central space having a first opening and a second opening. A cathode is disposed within the central space. This cathode has a first electron emitter aligned to inject electrons through the first opening and a second electron emitter aligned to inject electrons through the second opening. Electrons injected in a proper direction are accelerated in the main electron orbit. At a time of maximum electron acceleration, the electrons are deflected and impact a target that generates x-rays on impact.
摘要翻译： 具有设置在循环磁场中的环形通道的贝塔通管，其环绕环形通道环绕主电子轨道。 在环形通道内是与第二电极间隔开的第一电极。 第一电极和第二电极的组合限定了具有第一开口和第二开口的中心空间。 阴极设置在中心空间内。 该阴极具有对准的第一电子发射体，以通过第一开口注入电子，并且第二电子发射器对准以通过第二开口注入电子。 在主电子轨道上加速沿适当方向注入的电子。 在最大电子加速时，电子被偏转并撞击在撞击时产生X射线的靶。
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10.发明申请公开(公告)号：US20140005945A1
公开(公告)日：2014-01-02
申请号：US13992751
申请日：2011-12-09
申请人： Vivek Anand , Robert Freedman , Tong Zhou , David Rose , Sicco Beekman
发明人： Vivek Anand , Robert Freedman , Tong Zhou , David Rose , Sicco Beekman
IPC分类号： G01V5/10
摘要： Disclosed is a model-independent method for accurate prediction of formation and borehole properties from neutron capture cross section measurements. A mapping function is constructed which maps the input measurements to the properties of interest. The mapping function is a linear combination of Gauss radial basis functions. The expansion coefficients and widths of the Gaussian functions are determined uniquely using a database populated with representative samples. For a sample not included in the original database, the desired properties can be estimated from the mapping function using the measurements made on the unknown sample.
摘要翻译： 公开了一种用于从中子捕获截面测量精确预测地层和钻孔性质的模型无关方法。 构建映射函数，将输入测量值映射到感兴趣的属性。 映射函数是高斯径向基函数的线性组合。 使用填充有代表性样本的数据库来唯一地确定高斯函数的扩展系数和宽度。 对于未包含在原始数据库中的样本，可以使用对未知样本进行的测量从映射函数估计所需的属性。
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