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公开(公告)号：US08686348B2
公开(公告)日：2014-04-01
申请号：US13366970
申请日：2012-02-06
申请人： Leo Chirovsky , Anthony Durkowski , Kevin Hiles , Jani Reijonen , Matthieu Simon , Peter Wraight
发明人： Leo Chirovsky , Anthony Durkowski , Kevin Hiles , Jani Reijonen , Matthieu Simon , Peter Wraight
IPC分类号： G01V5/00
CPC分类号： H01B19/04 , E21B47/01 , Y10T29/49227
摘要： A well logging instrument includes an instrument housing to traverse a wellbore penetrating subsurface formations. An electrically operated energy source that emits ionizing radiation is disposed inside the housing. An insulating sleeve is disposed between the energy source and an interior wall of the housing. The insulating sleeve comprises a thin dielectric film arranged in a plurality of tightly fitting layers of dielectric material disposed adjacent to each other and successively. A thickness of each layer and a number of layers is selected to provide a dielectric strength sufficient to electrically insulate the energy source from the housing and to provide a selected resistance to dielectric failure resulting from the ionizing radiation.
摘要翻译： 测井仪器包括用于穿过井眼穿透地下地层的仪器壳体。 发射电离辐射的电动能量源设置在壳体内。 绝缘套管设置在能量源和壳体的内壁之间。 绝缘套筒包括布置在彼此相邻并相继布置的多个紧密配合的介电材料层中的薄介电膜。 选择每个层的厚度和多个层以提供足以将能量源与壳体电绝缘的介电强度，并提供由电离辐射引起的介电故障的选定电阻。
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公开(公告)号：US20130208840A1
公开(公告)日：2013-08-15
申请号：US13510243
申请日：2010-11-15
IPC分类号： G21G4/02
摘要： Various embodiments for shortening the overall length of a pulsed neutron generator having a high voltage power supply are disclosed, including but not limited to, providing the plurality of stages of a high voltage power supply wrapped circumferentially or helically about a radiation generator tube. Various techniques for reducing voltage differentials and mitigating the risk of arcing in these embodiments are also disclosed.
摘要翻译： 公开了用于缩短具有高压电源的脉冲中子发生器的总长度的各种实施例，包括但不限于提供围绕辐射发生器管周向或螺旋状缠绕的高压电源的多个级。 还公开了用于降低电压差和减轻这些实施例中的电弧风险的各种技术。
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公开(公告)号：US20100116978A1
公开(公告)日：2010-05-13
申请号：US12268211
申请日：2008-11-10
申请人： Christian Stoller , Peter Wraight , Matthieu Simon
发明人： Christian Stoller , Peter Wraight , Matthieu Simon
摘要： Systems and methods for stabilizing the gain of a gamma-ray spectroscopy system are provided. In accordance with one embodiment, a method of stabilizing the gain of a gamma-ray spectroscopy system may include generating light corresponding to gamma-rays detected from a geological formation using a scintillator having a natural radioactivity, generating an electrical signal corresponding to the light, and stabilizing the gain of the electrical signal based on the natural radioactivity of the scintillator. The scintillator may contain, for example, naturally radioactive elements such as Lutetium or Lanthanum.
摘要翻译： 提供了用于稳定伽马射线光谱系统的增益的系统和方法。 根据一个实施例，一种稳定伽马射线光谱系统的增益的方法可以包括使用具有自然放射性的闪烁体产生对应于从地质构造检测的伽马射线的光，产生对应于光的电信号， 并且基于闪烁体的自然放射性稳定电信号的增益。 闪烁体可以含有例如天然的放射性元素如镥或镧。
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4.发明授权High voltage x-ray generator and related oil well formation analysis apparatus and method 有权高压X射线发生器及相关油井形成分析装置及方法公开(公告)号：US07668293B2
公开(公告)日：2010-02-23
申请号：US12468897
申请日：2009-05-20
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/0233 , H01J2235/06 , H01J2235/163 , H05G1/02 , H05G1/10
摘要： An apparatus and method for determining the density and other properties of a formation surrounding a borehole using a high voltage x-ray generator. One embodiment comprises a stable compact x-ray generator capable of providing radiation with energy of 250 keV and higher while operating at temperatures equal to or greater than 125° C. In another embodiment, radiation is passed from an x-ray generator into the formation; reflected radiation is detected by a short spaced radiation detector and a long spaced radiation detector. The output of these detectors is then used to determine the density of the formation. In one embodiment, a reference radiation detector monitors a filtered radiation signal. The output of this detector is used to control at least one of the acceleration voltage and beam current of the x-ray generator.
摘要翻译： 一种用于使用高压x射线发生器确定围绕钻孔的地层的密度和其它性质的装置和方法。 一个实施例包括能够在等于或大于125℃的温度下工作时能够提供250keV及更高能量的辐射的稳定的紧凑型X射线发生器。在另一个实施例中，辐射从X射线发生器传送到地层 ; 反射辐射由短间隔的辐射检测器和长间隔的辐射检测器检测。 然后使用这些检测器的输出来确定地层的密度。 在一个实施例中，参考辐射检测器监视经滤波的辐射信号。 该检测器的输出用于控制x射线发生器的加速电压和射束电流中的至少一个。
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公开(公告)号：US07634059B2
公开(公告)日：2009-12-15
申请号：US11950469
申请日：2007-12-05
申请人： Peter Wraight
发明人： Peter Wraight
摘要： An X-ray downhole imaging tool is provided and includes an X-ray tube capable of operating at least at 50 KeV and emitting at least one hundred micro-amperes of continuous electron current and a radiation detector axially displaced from the X-ray tube, at least partially shielded therefrom and radially directed. In certain embodiments, the radiation detector includes a microchannel plate and a resistive anode. In certain embodiments, a second detector which is axially directed is also provided.
摘要翻译： 提供X射线井下成像工具，并且包括能够至少操作50KeV并且发射至少一百微安的连续电子流的X射线管和从X射线管轴向移位的辐射检测器， 至少部分地屏蔽并径向定向。 在某些实施例中，辐射检测器包括微通道板和电阻性阳极。 在某些实施例中，还提供了轴向指向的第二检测器。
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6.发明申请Methods for Controlling Ion Beam and Target Voltage in a Neutron Generator for Improved Performance 有权用于控制中子发生器中离子束和目标电压的方法，以提高性能公开(公告)号：US20090219028A1
公开(公告)日：2009-09-03
申请号：US12040272
申请日：2008-02-29
摘要： A method for operating a pulsed neutron generator includes adjusting a target current of the neutron generator to a preselected value. A parameter related to a neutron output of the neutron generator is measured. A target voltage of the neutron generator is adjusted to maintain the measured parameter within a predetermined range.
摘要翻译： 用于操作脉冲中子发生器的方法包括将中子发生器的目标电流调节到预选值。 测量与中子发生器的中子输出有关的参数。 调整中子发生器的目标电压以将测量参数保持在预定范围内。
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7.发明申请High Voltage X-Ray Generator and Related Oil Well Formation Analysis Apparatus and Method 有权高压X射线发生器及相关油井形成分析装置及方法公开(公告)号：US20080159480A1
公开(公告)日：2008-07-03
申请号：US11611441
申请日：2006-12-15
CPC分类号： H01J35/06 , H01J35/14 , H01J2235/0233 , H01J2235/06 , H01J2235/163 , H05G1/02 , H05G1/10
摘要： An apparatus and method for determining the density and other properties of a formation surrounding a borehole using a high voltage x-ray generator. One embodiment comprises a stable compact x-ray generator capable of providing radiation with energy of 260 keV and higher while operating at temperatures equal to or greater than 125° C. In another embodiment, radiation is passed from an x-ray generator into the formation; reflected radiation is detected by a short spaced radiation detector and a long spaced radiation detector. The output of these detectors is then used to determine the density of the formation. In one embodiment, a reference radiation detector monitors a filtered radiation signal. The output of this detector is used to control at least one of the acceleration voltage and beam current of the x-ray generator.
摘要翻译： 一种用于使用高压x射线发生器确定围绕钻孔的地层的密度和其它性质的装置和方法。 一个实施例包括稳定的紧凑型x射线发生器，其能够在等于或大于125℃的温度下工作时提供260keV或更高能量的辐射。在另一个实施例中，辐射从X射线发生器传送到地层 ; 反射辐射由短间隔的辐射检测器和长间隔的辐射检测器检测。 然后使用这些检测器的输出来确定地层的密度。 在一个实施例中，参考辐射检测器监视经滤波的辐射信号。 该检测器的输出用于控制x射线发生器的加速电压和射束电流中的至少一个。
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公开(公告)号：US20080152080A1
公开(公告)日：2008-06-26
申请号：US12016330
申请日：2008-01-18
IPC分类号： G01N23/06
CPC分类号： G01N23/12 , G01N33/2823 , G21K1/10 , H01J35/18 , H01J2235/18
摘要： An x-ray tool for determining a characteristic of an oilfield fluid. The tool may include a generator portion housing a collimator about a target from which x-rays are emitted. In this manner x-rays may be attenuated right at the target such that a majority of shielding otherwise necessary for safety concerns may be eliminated. Rather, by employing the target within the collimator, shielding of the generator may be limited to a single shielding plate within the generator portion that is positioned parallel to the target at the opposite end of an x-ray tube therebetween. As a result of this configuration, an x-ray tool for analysis of oilfield fluids may be provided with a minimum weight of shielding material. Thus, hand-held user friendly embodiments may be safely employed at the oilfield.
摘要翻译： 一种用于确定油田流体特性的x射线工具。 工具可以包括发射器部分，其围绕射线X射线的目标容纳准直器。 以这种方式，x射线可以在目标处正确地衰减，使得可能消除对于安全考虑而另外必需的大部分屏蔽。 相反，通过在准直器内采用目标，发生器的屏蔽可以被限制在发生器部分内与X射线管的相对端处的平行于靶的单个屏蔽板。 作为这种结构的结果，用于分析油田流体的X射线工具可以设置有最小重量的屏蔽材料。 因此，在油田可以安全地使用手持用户友好的实施例。
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公开(公告)号：US20080069301A1
公开(公告)日：2008-03-20
申请号：US11532236
申请日：2006-09-15
申请人： Rod Shampine , Joel Groves , Anthony Durkowski , Etienne Vallee , Peter Wraight
发明人： Rod Shampine , Joel Groves , Anthony Durkowski , Etienne Vallee , Peter Wraight
IPC分类号： G01N23/06
CPC分类号： G01N9/24 , G01N23/12 , G01N33/2823 , G01N2015/0693
摘要： A method and apparatus for determining the density and phase fractions of well services fluids is shown including an x-ray generator, a sample cell, and a radiation detector. Radiation is passed through the sample cell and fluid and the attenuated radiation signal is used to evaluate the fluid. In one embodiment, a reference radiation detector measures a filtered radiation signal and controls the acceleration voltage and/or beam current of the x-ray generator using this information. The apparatus may be permanently affixed for long term monitoring or temporarily clamped on to a pipe in production.
摘要翻译： 示出了用于确定井服务流体的密度和相分数的方法和装置，其包括x射线发生器，样品池和放射线检测器。 辐射通过样品池和流体，衰减的辐射信号用于评估流体。 在一个实施例中，参考辐射检测器测量经滤波的辐射信号，并使用该信息来控制x射线发生器的加速电压和/或束流。 该设备可以永久地固定以用于长期监测或临时夹紧在生产中的管道上。
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公开(公告)号：US20070137894A1
公开(公告)日：2007-06-21
申请号：US11304296
申请日：2005-12-15
申请人： Go Fujisawa , Oliver Mullins , Peter Wraight , Joel Groves , Lennox Reid , Felix Chen , Gary Corris , Yi-Qiao Song
发明人： Go Fujisawa , Oliver Mullins , Peter Wraight , Joel Groves , Lennox Reid , Felix Chen , Gary Corris , Yi-Qiao Song
IPC分类号： E21B49/00
CPC分类号： E21B49/06
摘要： A wireline-conveyed side-wall core coring tool for acquiring side-wall core from a geological formation for performing in-situ side-wall core analysis. The coring tool has a core analysis unit operable to measure geophysical properties of an acquired side-wall core. The measured geophysical properties may be used to determine the success of the acquisition of side-wall cores by the coring tool. The core analysis unit is operable of performing an in-situ interpretation of measured geophysical property of the side-wall core and transmitting in near real-time the measurements or the interpretation results to surface data acquisition and processing apparatus.
摘要翻译： 一种有线输送的侧壁芯取芯工具，用于从地质层获取侧壁芯，用于进行原位侧壁芯分析。 取芯工具具有可用于测量获得的侧壁芯的地球物理性质的核心分析单元。 测量的地球物理性质可用于确定取芯工具对侧壁岩芯的获取成功。 核心分析单元可操作地对侧壁核心的测量的地球物理特性进行现场解释，并将测量或解释结果近似实时传输到地面数据采集和处理设备。
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