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1. 发明申请

US20130308753A1 In-Situ Downhole X-Ray Core Analysis System 有权
标题翻译：原位井下X射线核心分析系统
公开(公告)号：US20130308753A1
公开(公告)日：2013-11-21
申请号：US13881680
申请日：2011-10-28
申请人： Joel L. Groves , Christian Stoller
发明人： Joel L. Groves , Christian Stoller
IPC分类号： G01V5/12
CPC分类号： G01V5/12 , E21B49/06 , G01T7/005
摘要： The disclosure includes an arrangement of X-ray generator(s) (210), X-ray detector(s) (214), and/or X-ray calibration device(s) for performing X-ray measurements, such as attenuation and/or photo electric factor measurements, on formation core samples (204) in a downhole environment under conditions including limited space and operations at high pressure and temperature.
摘要翻译：本公开包括用于执行X射线测量的X射线发生器（210），X射线检测器（214）和/或X射线校准装置的布置，诸如衰减和 /或光电因素测量，在井下环境中的形成岩心样品（204）上，包括在高压和高温下的有限空间和操作的条件下。

2. 发明授权

US07991111B2 High voltage x-ray generator and related oil well formation analysis apparatus and method 有权
标题翻译：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：US07991111B2
公开(公告)日：2011-08-02
申请号：US12882005
申请日：2010-09-14
申请人： Peter Wraight , Arthur J. Becker , Joel L. Groves , Christian Stoller
发明人： Peter Wraight , Arthur J. Becker , Joel L. Groves , Christian Stoller
IPC分类号： G01N23/06 , H01J35/02
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以上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射线发生器通过地层 ; 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。

3. 发明申请

US20100282971A1 Method and Apparatus for Radiation Detection in a High Temperature Environment 有权
标题翻译：高温环境辐射检测方法与装置
公开(公告)号：US20100282971A1
公开(公告)日：2010-11-11
申请号：US11967088
申请日：2007-12-29
申请人： John Simonetti , Joel L. Groves , Wolfgang Ziegler , Arthur D. Liberman , Christian Stoller
发明人： John Simonetti , Joel L. Groves , Wolfgang Ziegler , Arthur D. Liberman , Christian Stoller
IPC分类号： G01T1/20
CPC分类号： G01T1/28 , G01T1/20
摘要： A radiation detector operating at high temperatures is shown comprising a scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the scintillating material that is oriented toward the electron multiplier. Depositing the photocathode directly on the surface greatly decreases photon loss which is a problem of prior art systems. In a preferred embodiment, a metal flange is hermetically sealed to the scintillating material and this is fusion welded to the electron multiplier to create a vacuum envelope. This invention is particularly useful in noisy environments such as downhole in a drilling operatio
摘要翻译：示出了在高温下工作的放射线检测器，其包括用于在被入射辐射激发时产生光的闪烁材料，光电阴极和电子倍增器。光电阴极直接沉积在朝向电子倍增器的闪烁材料的表面上。将光电阴极直接沉积在表面上大大降低了光子损失，这是现有技术系统的问题。在优选实施例中，金属凸缘与闪烁材料气密密封，并且将其熔接到电子倍增器以产生真空外壳。本发明在诸如钻井作业中的井下的噪声环境中特别有用

4. 发明申请

US20080069307A1 X-Ray Tool For An Oilfield Fluid 审中-公开
标题翻译：油田液体的X射线工具
公开(公告)号：US20080069307A1
公开(公告)日：2008-03-20
申请号：US11751727
申请日：2007-05-22
申请人： Rod Shampine , Peter Wraight , Joel L. Groves , Anthony Durkowski , Etienne Vallee
发明人： Rod Shampine , Peter Wraight , Joel L. Groves , Anthony Durkowski , Etienne Vallee
IPC分类号： H05G1/06
CPC分类号： G01N9/24 , G01N23/12 , G01N33/2823 , G01N2015/0693
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 that is no more than about 50 lbs. in total weight. 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，可以提供不超过约50磅的用于油田流体分析的X射线工具。总重量。因此，在油田可以安全地使用手持用户友好的实施例。

5. 发明授权

US4958073A Apparatus for fine spatial resolution measurments of earth formations 失效
标题翻译：用于地球地层精细空间分辨率测量的装置
公开(公告)号：US4958073A
公开(公告)日：1990-09-18
申请号：US281577
申请日：1988-12-08
申请人： Arthur J. Becker , Joel L. Groves , Charles C. Watson
发明人： Arthur J. Becker , Joel L. Groves , Charles C. Watson
IPC分类号： G01V5/12
CPC分类号： G01V5/12
摘要： A high resolution gamma-gamma apparatus is provided with a chemical source and a photon detector in such close proximity such that the detector provides a positive response to an increase in formation density. Typically, such a response is obtained when the detector opening is within one source photon mean free path of the source opening. For a Cs 137 source, the furthest spacing would be about two inches, although spacings of less than one inch are preferable. In order to decrease background noise, shielding is placed between the source and detector. A first embodiment of the tool has an uncollimated source, and a substantially uncollimated detector with the source and detector being coaxial and with the detector behind the source and separated by shielding. A second embodiment has a collimated source with an uncollimated detector, while a third embodiment has an uncollimated source with a collimated detector. The provided apparatus are useful for high resolution density and Pe measurements. Additional axially spaced negative response detectors may be included to provided additional information which are useful in correcting for environmental effects. Also, circumferentially spaced detectors along with additional sources are useful in conducting dip analysis.

6. 发明授权

US07668293B2 High voltage x-ray generator and related oil well formation analysis apparatus and method 有权
标题翻译：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
申请人： Peter Wraight , Arthur J. Becker , Joel L. Groves , Christian Stoller
发明人： Peter Wraight , Arthur J. Becker , Joel L. Groves , Christian Stoller
IPC分类号： G01B15/02 , H05G1/10
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。

7. 发明申请

US20090135982A1 Neutron Generator 有权
标题翻译：中子发生器
公开(公告)号：US20090135982A1
公开(公告)日：2009-05-28
申请号：US11946344
申请日：2007-11-28
申请人： Joel L. Groves
发明人： Joel L. Groves
IPC分类号： H05H3/06 , G01V5/10
CPC分类号： H05H3/06 , B82Y99/00 , G01V5/10 , H01J2201/30469 , Y10S977/963
摘要： A neutron generator includes an ion source disposed in a pressurized environment containing an ionizable gas. The ion source includes a substrate with a bundle of carbon nanotubes extending therefrom. The ends of the nanotubes are spaced from a grid. Ion source voltage supply circuitry supplies a positive voltage potential between the substrate and the grid of the ion source to cause ionization of the ionizable gas and emission of ions through the grid. An ion accelerator section is disposed between the ion source and a target. The ion accelerator section accelerates ions that pass through the grid towards the target such that collisions of the ions with the target cause the target to generate and emit neutrons therefrom. The ion source, accelerator section and target are housed in a sealed tube and preferably the carbon nanotubes of the bundle are highly ordered with at least 106 carbon nanotubes per cm2 that extend in a direction substantially parallel to the central axis of the tube. The neutron generator provides gas ionization at much higher atomic to molecular ratio that the prior art, which allows for small compact size designs suitable for logging tools that are used in space-constrained downhole environments.
摘要翻译：中子发生器包括设置在包含可电离气体的加压环境中的离子源。离子源包括具有从其延伸的碳纳米管束的衬底。纳米管的端部与网格间隔开。离子源电压电源电路在基板和离子源的栅格之间提供正电压电位，以引起电离气体的离子化和离子通过电网的发射。离子加速器部分设置在离子源和靶之间。离子加速器部分将通过栅格的离子加速到靶，使得离子与目标物的碰撞导致靶产生并从其发射中子。离子源，加速器部分和目标物体容纳在密封管中，并且优选地，束的碳纳米管是高度有序的，每平方厘米的至少106个碳纳米管在基本上平行于管的中心轴线的方向上延伸。中子发生器以现有技术的高得多的原子与分子比提供气体电离，其允许适用于在空间受限的井下环境中使用的测井工具的小型紧凑尺寸设计。

8. 发明申请

US20080159480A1 High Voltage X-Ray Generator and Related Oil Well Formation Analysis Apparatus and Method 有权
标题翻译：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
申请人： Peter Wraight , Arthur J. Becker , Joel L. Groves , Christian Stoller
发明人： Peter Wraight , Arthur J. Becker , Joel L. Groves , Christian Stoller
IPC分类号： G01B15/02 , H01J35/00
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。

9. 发明申请

US20080152080A1 X-Ray Tool for an Oilfield Fluid 失效
标题翻译：油田液体X射线工具
公开(公告)号：US20080152080A1
公开(公告)日：2008-06-26
申请号：US12016330
申请日：2008-01-18
申请人： Rod Shampine , Joel L. Groves , Anthony Durkowski , Etienne Vallee , Peter Wraight
发明人： Rod Shampine , Joel L. Groves , Anthony Durkowski , Etienne Vallee , Peter Wraight
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。

10. 发明授权

US09204527B2 Neutron generator 有权
公开(公告)号：US09204527B2
公开(公告)日：2015-12-01
申请号：US12760183
申请日：2010-04-14
申请人： Joel L. Groves
发明人： Joel L. Groves
IPC分类号： G21G4/00 , H05H3/06 , G01V5/10 , B82Y99/00
CPC分类号： H05H3/06 , B82Y99/00 , G01V5/10 , H01J2201/30469 , Y10S977/963
摘要： A neutron generator includes an ion source disposed in a pressurized environment containing an ionizable gas. The ion source includes a substrate with a bundle of carbon nanotubes extending therefrom. The ends of the nanotubes are spaced from a grid. Ion source voltage supply circuitry supplies a positive voltage potential between the substrate and the grid of the ion source to cause ionization of the ionizable gas and emission of ions through the grid. An ion accelerator section is disposed between the ion source and a target. The ion accelerator section accelerates ions that pass through the grid towards the target such that collisions of the ions with the target cause the target to generate and emit neutrons therefrom. The ion source, accelerator section and target are housed in a sealed tube and preferably the carbon nanotubes of the bundle are highly ordered with at least 106 carbon nanotubes per cm2 that extend in a direction substantially parallel to the central axis of the tube. The neutron generator provides gas ionization at much higher atomic to molecular ratio that the prior art, which allows for small compact size designs suitable for logging tools that are used in space-constrained downhole environments.

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