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：US09234980B2

公开(公告)日：2016-01-12

申请号：US13990946

申请日：2011-12-02

Applicant: Gilles Mathieu ,  Kent Lang ,  Peter Wraight ,  Roland Banas ,  James A. Grau ,  Edward Clayton

Inventor： Gilles Mathieu ,  Kent Lang ,  Peter Wraight ,  Roland Banas ,  James A. Grau ,  Edward Clayton

IPC: G01V5/00 ,  G01V8/10 ,  E21B43/28 ,  E21B47/00 ,  E21B47/06 ,  E21B47/09

CPC classification number: G01V8/10 ,  E21B43/28 ,  E21B47/00 ,  E21B47/065 ,  E21B47/09

Abstract: The present invention provides systems and methods capable of improving the efficiency and effectiveness of leaching operations. In one embodiment, the present invention may utilize a coiled tubing directional drilling system capable of treating interior portions of the heap/formation. In one embodiment, the present invention may utilize a system and method capable of capturing real time temperature and resistivity data pertaining to pregnant solution characteristics in the heap/formation. In one embodiment, the present invention may utilize one or more wire line deployed X-Ray Fluorescence (XRF) spectrometers capable of quantitatively measuring concentrations of desired metals in the heap/formation during leaching operations. In one embodiment, the present invention utilizes multiple passes of elemental capture spectroscopy logs acquired at regular time intervals to monitor metal concentrations during leaching operations. In one embodiment, the present invention provides one or more subsurface barriers capable of optimizing leaching operations.

Abstract translation: 本发明提供能够提高浸出操作的效率和有效性的系统和方法。 在一个实施例中，本发明可以利用能够处理堆/地层内部的连续油管定向钻井系统。 在一个实施例中，本发明可以利用能够捕获与堆/地层中的怀孕溶液特征有关的实时温度和电阻率数据的系统和方法。 在一个实施方案中，本发明可利用能够在浸出操作期间能够定量测量堆/地层中所需金属浓度的一条或多条有线线路部署的X射线荧光（XRF）光谱仪。 在一个实施方案中，本发明利用以规则的时间间隔获得的元素捕获光谱学日志的多次通过来监测浸出操作期间的金属浓度。 在一个实施例中，本发明提供能够优化浸出操作的一个或多个地下障碍物。

公开(公告)号：US08664587B2

公开(公告)日：2014-03-04

申请号：US12950375

申请日：2010-11-19

Applicant: Michael Evans ,  Peter Wraight ,  Christian Stoller ,  Avto Tkabladze

Inventor： Michael Evans ,  Peter Wraight ,  Christian Stoller ,  Avto Tkabladze

IPC: G01V5/10

CPC classification number: G01V5/104

Abstract: A method and apparatus for obtaining neutron images of a rock formation are provided. The neutron images can be obtained from a tool in a logging-while-drilling system but which need not rotate to obtain neutron data from a plurality of azimuthal orientations.

Abstract translation: 提供了一种获得岩层中子图像的方法和装置。 中子图像可以在钻井同步系统中的工具中获得，但不需要旋转以从多个方位取向获得中子数据。

公开(公告)号：US08173953B2

公开(公告)日：2012-05-08

申请号：US12268211

申请日：2008-11-10

Applicant: Christian Stoller ,  Peter Wraight ,  Matthieu Simon

Inventor： Christian Stoller ,  Peter Wraight ,  Matthieu Simon

IPC: G01V5/00 ,  G01T1/20

CPC classification number: G01T1/202 ,  G01T1/40

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110260044A1

公开(公告)日：2011-10-27

申请号：US12764814

申请日：2010-04-21

Applicant: Peter Wraight ,  James Thornton ,  Bradley A. Roscoe

Inventor： Peter Wraight ,  James Thornton ,  Bradley A. Roscoe

IPC: G01V5/10 ,  G12B13/00

CPC classification number: G01V5/107

Abstract: Systems and methods for neutron porosity well logging with high precision and reduced lithology effects are provided. In accordance with an embodiment, a downhole neutron porosity tool may include a neutron source, a neutron monitor, a neutron detector, and data processing circuitry. The neutron source may emit neutrons into a subterranean formation while the neutron monitor detects a count of neutrons proportional to the neutrons emitted. The neutron detector may detect a count of neutrons that scatters off the subterranean formation. The data processing circuitry may determine an environmentally corrected porosity of the subterranean formation based at least in part on the count rate of neutrons scattered off the subterranean formation normalized to the count rate of neutrons proportional to the neutrons emitted by the neutron source.

Abstract translation: 提供了具有高精度和降低岩性效应的中子孔隙测井的系统和方法。 根据实施例，井下中子孔隙度工具可以包括中子源，中子监测器，中子检测器和数据处理电路。 中子源可以将中子发射到地下地层，而中子监测器检测到与发射的中子成比例的中子数。 中子探测器可以检测到离开地下地层的中子数量。 数据处理电路可以至少部分地基于从地下地层散射的中子的计数率归一化为与中子发射的中子成比例的中子的计数率，来确定地下地层的环境校正的孔隙度。

公开(公告)号：US20110114830A1

公开(公告)日：2011-05-19

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: G01V5/10 ,  G01V5/12

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：US20090274276A1

公开(公告)日：2009-11-05

申请号：US12503517

申请日：2009-07-15

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

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

IPC: G01B15/02 ,  H01J35/18 ,  H05G1/10

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。

公开(公告)号：US07564948B2

公开(公告)日：2009-07-21

申请号：US11611441

申请日：2006-12-15

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

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

IPC: H05G1/10 ,  H05G1/32 ,  H01J35/00

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 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.

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。

公开(公告)号：US20090139713A1

公开(公告)日：2009-06-04

申请号：US12200081

申请日：2008-08-28

Applicant: John Edwards ,  Christian Stoller ,  Peter Wraight ,  Roger Griffiths ,  Nicolas Renoux

Inventor： John Edwards ,  Christian Stoller ,  Peter Wraight ,  Roger Griffiths ,  Nicolas Renoux

IPC: E21B47/00 ,  E21B7/00 ,  G01V5/04 ,  G06F19/00 ,  E21B33/12

CPC classification number: E21B47/1015 ,  E21B2021/006

Abstract: The invention relates to methods and apparatus for determining a downhole parameter in an underbalanced drilling environment which include: selectively activating a first fluid flowing from the formation through a wellbore while under balanced drilled; detecting the activated first fluid, and determining a depth at which said fluid enters the wellbore.

Abstract translation: 本发明涉及用于确定欠平衡钻井环境中的井下参数的方法和装置，其包括：在平衡钻探的同时，选择性地激活从地层流过井眼的第一流体; 检测所述活化的第一流体，以及确定所述流体进入所述井筒的深度。

公开(公告)号：US07507952B2

公开(公告)日：2009-03-24

申请号：US11308910

申请日：2006-05-25

Applicant: Joel Lee Groves ,  Etienne Vallee ,  Peter Wraight

Inventor： Joel Lee Groves ,  Etienne Vallee ,  Peter Wraight

IPC: G01V5/08

CPC classification number: G01N9/24 ,  G01N9/36 ,  G01N23/12 ,  G01N2223/313 ,  G01N2223/616

Abstract: A fluid density determination apparatus and method comprising an X-ray generator emitting a high energy radiation signal and a low energy radiation signal; a sample cell housing a sample of interest and at least one of the high energy and low energy radiation signals being directed through the sample cell; and a radiation detector measuring the output radiation from the sample cell. Data gathered at the radiation detector using the high and low energy signals are used to calculate the density of the fluid sample of interest.

Abstract translation: 一种流体密度测定装置和方法，包括发射高能量辐射信号和低能量辐射信号的X射线发生器; 容纳感兴趣样品的样品池和高能量和低能量辐射信号中的至少一个被引导通过样品池; 以及辐射检测器，测量来自样品池的输出辐射。 使用高能量和低能量信号在辐射检测器处收集的数据用于计算感兴趣的流体样品的密度。