公开(公告)号：US20070137894A1

公开(公告)日：2007-06-21

申请号：US11304296

申请日：2005-12-15

Applicant: Go Fujisawa ,  Oliver Mullins ,  Peter Wraight ,  Joel Groves ,  Lennox Reid ,  Felix Chen ,  Gary Corris ,  Yi-Qiao Song

Inventor： Go Fujisawa ,  Oliver Mullins ,  Peter Wraight ,  Joel Groves ,  Lennox Reid ,  Felix Chen ,  Gary Corris ,  Yi-Qiao Song

IPC: E21B49/00

CPC classification number: E21B49/06

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5051581A

公开(公告)日：1991-09-24

申请号：US517268

申请日：1990-05-01

Applicant: Russell C. Hertzog ,  William A. Loomis ,  Peter Wraight

Inventor： Russell C. Hertzog ,  William A. Loomis ,  Peter Wraight

IPC: G01V5/10

CPC classification number: G01V5/108

Abstract: The porosities of subsurface earth formations surrounding a borehole are investigated using a logging tool run in the wellbore by repeatedly irradiating the formations with discrete bursts of high energy neutrons, measuring the populations of epithermal neutrons at near and far locations from the neutron source, and also measuring the rate of decay of the epithermal neutron population at a third location following each neutron burst and deriving therefrom a measurement of the epithermal neutron slowing down time. Formation porosity values derived from the near-and-far location population measurements are corrected for detector standoff effects by use, in accordance with a predetermined empirical relationship, of the epithermal slow down time measurement. Alternatively, formation porosities may be derived both from the near-and-far location measurements and from the epithermal slowing down time measurement, and the two differently-derived porosity values may be used independently to provide enhanced information of formation porosity or they may be compared to derive a standoff-corrected porosity value.

公开(公告)号：US10229765B2

公开(公告)日：2019-03-12

申请号：US13510243

申请日：2010-11-15

Applicant: Joel Lee Groves ,  Luke T. Perkins ,  Fabien Guizelin ,  Peter Wraight

Inventor： Joel Lee Groves ,  Luke T. Perkins ,  Fabien Guizelin ,  Peter Wraight

IPC: G21G4/02 ,  H05H3/06

Abstract: 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.

公开(公告)号：US09155185B2

公开(公告)日：2015-10-06

申请号：US12618821

申请日：2009-11-16

Applicant: Jani Reijonen ,  Luke T. Perkins ,  Frederic Gicquiel ,  Christian Stoller ,  Peter Wraight

Inventor： Jani Reijonen ,  Luke T. Perkins ,  Frederic Gicquiel ,  Christian Stoller ,  Peter Wraight

IPC: G21G1/10 ,  H05H5/02 ,  G01V5/10 ,  H05H7/22 ,  H05H3/06 ,  H01J35/04 ,  H01J35/16 ,  G21B1/00

CPC classification number: H05H3/06 ,  G01V5/10 ,  G21G1/10 ,  H01J35/04 ,  H01J35/16 ,  H01J2235/02 ,  H01J2235/06 ,  H01J2235/086 ,  H01J2235/165 ,  H01J2235/20

Abstract: Systems, methods, and devices with improved electrode configuration for downhole nuclear radiation generators are provided. For example, one embodiment of a nuclear radiation generator capable of downhole operation may include a charged particle source, a target material, and an acceleration column between the charged particle source and the target material. The acceleration column may include several electrodes shaped such that substantially no electrode material from the electrodes is sputtered onto an insulator surface of the acceleration column during normal downhole operation.

Abstract translation: 提供了用于井下核辐射发生器的具有改进的电极配置的系统，方法和装置。 例如，能够进行井下操作的核辐射发生器的一个实施例可以包括带电粒子源，目标材料和带电粒子源与目标材料之间的加速柱。 加速柱可以包括几个电极，其形状使得在正常的井下操作期间基本上没有电极的电极材料溅射到加速柱的绝缘体表面上。

公开(公告)号：US08969793B2

公开(公告)日：2015-03-03

申请号：US12996541

申请日：2009-06-26

Applicant: Christian Stoller ,  Peter Wraight ,  Brad Roscoe

Inventor： Christian Stoller ,  Peter Wraight ,  Brad Roscoe

IPC: G01V5/10

CPC classification number: G01V5/102

Abstract: Systems and methods for measuring neutron-induced activation gamma-rays in a subterranean formation are provided. In one example, a downhole tool for measuring neutron-induced activation gamma-rays may include a neutron source and a gamma-ray detector. The neutron source may emit neutrons according to a pulsing scheme that includes a delay between two pulses. The delay may be sufficient to allow substantially all neutron capture events due to the emitted neutrons to cease. The gamma-ray detector may be configured to detect activation gamma-rays produced when elements activated by the emitted neutrons decay to a non-radioactive state.

Abstract translation: 提供了用于测量地下地层中的中子诱导活化γ射线的系统和方法。 在一个示例中，用于测量中子诱导的激活γ射线的井下工具可以包括中子源和γ射线检测器。 中子源可以根据包括两个脉冲之间的延迟的脉冲方案发射中子。 延迟可能足以允许由于发射的中子停止而基本上所有的中子俘获事件。 γ射线检测器可以被配置为检测由发射的中子激活的元素衰变到非放射性状态时产生的激活γ射线。

公开(公告)号：US20150014544A1

公开(公告)日：2015-01-15

申请号：US14355762

申请日：2011-10-28

Applicant: Ken Stephenson ,  Peter Wraight ,  Wolfgang Ziegler ,  Christian Stoller ,  Irina Molodetsky

Inventor： Ken Stephenson ,  Peter Wraight ,  Wolfgang Ziegler ,  John J. Simonetti ,  Christian Stoller ,  Irina Molodetsky

IPC: G01T1/202 ,  G01V5/04 ,  H01J40/18 ,  G01T1/20

CPC classification number: G01T1/2023 ,  G01T1/2006 ,  G01V5/04 ,  H01J40/18

Abstract: A scintillator type radiation detector package is provided including a scintillation crystal directly coupled to the window of a photomultiplier. A scintillator package is also provided having a longer life at wellbore temperature with minimal deterioration of a hygroscopic scintillation crystal(s). Direct optical coupling of the scintillator to the photomultiplier reduces the amount of light lost at coupling interfaces and improved detection resolution over the conventional structures having separate packages for crystal and photomultiplier.

Abstract translation: 提供一种闪烁体型辐射检测器封装，其包括直接耦合到光电倍增管的窗口的闪烁晶体。 还提供闪烁体封装，其在井筒温度下具有更长的寿命，并且吸湿闪烁晶体的损坏最小。 闪烁体与光电倍增管的直接光耦合减少了耦合界面处损失的光量，并提高了具有晶体和光电倍增管单独封装的常规结构的检测分辨率。

公开(公告)号：US08742328B2

公开(公告)日：2014-06-03

申请号：US12959485

申请日：2010-12-03

Applicant: Matthieu Simon ,  Peter Wraight ,  Christian Stoller ,  Kenneth E. Stephenson ,  Andrew Bazarko

Inventor： Matthieu Simon ,  Peter Wraight ,  Christian Stoller ,  Kenneth E. Stephenson ,  Andrew Bazarko

IPC: G01V5/12 ,  G01V5/04 ,  G01N23/083

CPC classification number: G01V5/125 ,  E21B17/16 ,  E21B47/00 ,  E21B49/00 ,  G01N23/083 ,  G01V5/04 ,  G01V5/12

Abstract: Logging-while-drilling tools incorporating an electronic radiation generator, such as an electronic X-ray generator, and a method for using the same are provided. One example of such a logging-while-drilling tool may include a circumferential drill collar, a chassis disposed radially interior to the drill collar, and an electronic X-ray generator and an X-ray detector disposed within the chassis. The electronic X-ray generator may emit X-rays out of the logging-while-drilling tool into a subterranean formation. The X-ray detector may detect X-rays that return to the logging-while-drilling tool after scattering in the subterranean formation, which may be used to determine a density and/or a lithology of the subterranean formation.

Abstract translation: 提供了包括诸如电子X射线发生器的电子辐射发生器的同时钻孔工具及其使用方法。 这种钻井测井工具的一个例子可以包括圆周钻铤，径向设置在钻铤内部的底盘，以及设置在底盘内的电子X射线发生器和X射线探测器。 电子X射线发生器可以将X射线从测井钻井工具中排出到地层中。 X射线检测器可以检测在地下地层散射之后返回到钻井测井工具的X射线，其可以用于确定地下岩层的密度和/或岩性。

公开(公告)号：US08546749B2

公开(公告)日：2013-10-01

申请号：US12713746

申请日：2010-02-26

Applicant: Markus Berheide ,  James A. Grau ,  Bradley Albert Roscoe ,  Peter Wraight

Inventor： Markus Berheide ,  James A. Grau ,  Bradley Albert Roscoe ,  Peter Wraight

IPC: G01V5/00 ,  G01V5/04 ,  G01D18/00

CPC classification number: G01T1/202

Abstract: Methods and related systems are described for the detection of nuclear radiation. The system can include a scintillator material that intrinsically generates radiation and a photodetection system coupled to the scintillator material and adapted to generate electrical signals based on light emitted from the scintillator material. A processing system adapted and programmed to receive the electrical signals, to generate a count rate reference value based at least in part on electrical signals generated in response to the light emitted from the scintillator material due to the intrinsically generated radiation.

Abstract translation: 描述了用于检测核辐射的方法和相关系统。 该系统可以包括本质上产生辐射的闪烁体材料和耦合到闪烁体材料的光电检测系统，并适于基于从闪烁体材料发射的光产生电信号。 一种适于和编程为接收电信号的处理系统，以至少部分地基于由于本征产生的辐射而从闪烁体材料发射的光而产生的电信号产生计数速率参考值。

公开(公告)号：US20120138782A1

公开(公告)日：2012-06-07

申请号：US12959485

申请日：2010-12-03

Applicant: Matthieu Simon ,  Peter Wraight ,  Christian Stoller ,  Kenneth E. Stephenson ,  Andrew Bazarko

Inventor： Matthieu Simon ,  Peter Wraight ,  Christian Stoller ,  Kenneth E. Stephenson ,  Andrew Bazarko

IPC: G01V5/12

CPC classification number: G01V5/125 ,  E21B17/16 ,  E21B47/00 ,  E21B49/00 ,  G01N23/083 ,  G01V5/04 ,  G01V5/12

Abstract: Logging-while-drilling tools incorporating an electronic radiation generator, such as an electronic X-ray generator, and a method for using the same are provided. One example of such a logging-while-drilling tool may include a circumferential drill collar, a chassis disposed radially interior to the drill collar, and an electronic X-ray generator and an X-ray detector disposed within the chassis. The electronic X-ray generator may emit X-rays out of the logging-while-drilling tool into a subterranean formation. The X-ray detector may detect X-rays that return to the logging-while-drilling tool after scattering in the subterranean formation, which may be used to determine a density and/or a lithology of the subterranean formation.

Abstract translation: 提供了包括诸如电子X射线发生器的电子辐射发生器的同时钻孔工具及其使用方法。 这种钻井测井工具的一个例子可以包括圆周钻铤，径向设置在钻铤内部的底盘，以及设置在底盘内的电子X射线发生器和X射线探测器。 电子X射线发生器可以将X射线从测井钻井工具中排出到地层中。 X射线检测器可以检测在地下地层散射之后返回到钻井测井工具的X射线，其可以用于确定地下岩层的密度和/或岩性。

公开(公告)号：US20110002443A1

公开(公告)日：2011-01-06

申请号：US12882005

申请日：2010-09-14

Applicant: Peter Wraight ,  Arthur J. Becker ,  Joel L. Groves ,  Christian Stoller

Inventor： Peter Wraight ,  Arthur J. Becker ,  Joel L. Groves ,  Christian Stoller

IPC: G01N23/06 ,  H01J35/02

CPC classification number: H01J35/06 ,  H01J35/14 ,  H01J2235/0233 ,  H01J2235/06 ,  H01J2235/163 ,  H05G1/02 ,  H05G1/10

Abstract: 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.

Abstract translation: 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。