公开(公告)号：US09389334B2

公开(公告)日：2016-07-12

申请号：US14540750

申请日：2014-11-13

Applicant: Schlumberger Technology Corporation

Inventor： Luke Perkins

IPC: G01V5/08

CPC classification number: G01V5/08 ,  H05H3/06

Abstract: A radiation generator includes an ion source region, and an acceleration column downstream of the extractor electrode and in fluid communication with the ion source region. The ion source region and the acceleration column contain an ionizable gas. A vacuum pump pumps the ionizable gas from the acceleration column to the ion source region such that a gas pressure in the acceleration column is less than a gas pressure in the ion source region.

Abstract translation: 辐射发生器包括离子源区和提取器电极下游并与离子源区流体连通的加速度柱。 离子源区域和加速度柱包含可离子化气体。 真空泵将来自加速塔的可离子化气体泵送到离子源区域，使得加速塔中的气体压力小于离子源区域中的气体压力。

公开(公告)号：US20140183349A1

公开(公告)日：2014-07-03

申请号：US13728967

申请日：2012-12-27

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Jonna Flores ,  Luke Perkins

IPC: H01J27/20

CPC classification number: H01J27/205

Abstract: An ion source for use in a radiation generator tube includes a back passive cathode electrode, a passive anode electrode downstream of the back passive cathode electrode, a magnet adjacent the passive anode electrode, and a front passive cathode electrode downstream of the passive anode electrode. The front passive cathode electrode and the back passive cathode electrode define an ionization region therebetween. At least one Spindt cathode is configured to emit electrons into the ionization region. The back passive electrode electrode and the passive anode electrode, and the front passive cathode electrode and the passive anode electrode, have respective voltage differences therebetween, and the magnet generates a magnetic field, such that a Penning-type trap is produced to confine the electrons to the ionization region. At least some of the electrons in the ionization region interact with an ionizable gas to create ions.

Abstract translation: 用于辐射发生器管的离子源包括后无源阴极电极，位于后无源阴极电极下游的无源阳极电极，与被动阳极电极相邻的磁体和在被动阳极电极下游的前被动阴极电极。 前无源阴极电极和后无源阴极电极在其间限定电离区域。 至少一个Spindt阴极被配置为向电离区域发射电子。 后无源电极电极和被动阳极电极以及前被动阴极电极和被动阳极电极之间具有各自的电压差，并且磁体产生磁场，使得产生Penning型阱以限制电子 到电离区域。 电离区域中的至少一些电子与可电离气体相互作用以产生离子。

公开(公告)号：US20130180780A1

公开(公告)日：2013-07-18

申请号：US13718888

申请日：2012-12-18

Applicant: Schlumberger Technology Corporation

Inventor： Leo Chirovsky ,  Luke Perkins ,  Jani Reijonen ,  Loic Vilde

IPC: G01N23/00 ,  H05H3/06

CPC classification number: E21B47/00 ,  G01N23/005 ,  G01N33/24 ,  G21G4/02 ,  H05H3/06

Abstract: A method for operating a pulsed neutron generator including an ionizer with an electron emitting cathode and a grid wherein the cathode and grid are disposed in a sealed chamber. At least one of the following is applicable to the ionizer; a distance between the cathode and the grid, a cathode current and/or a potential on the grid are selected such that the ionizer operates at most about one-half the space charge limited current for a grid current selected to provide a predetermined amount of neutron production.

Abstract translation: 一种用于操作脉冲中子发生器的方法，其包括具有电子发射阴极和栅极的电离器，其中阴极和栅极设置在密封室中。 以下至少一项适用于电离器; 选择阴极和栅极之间的距离，栅极上的阴极电流和/或电势，使得电离器对于选择用于提供预定量的中子的电网电流的空间电荷限制电流的至多约一半的操作 生产。

公开(公告)号：US10174608B2

公开(公告)日：2019-01-08

申请号：US15500717

申请日：2015-07-31

Applicant: Schlumberger Technology Corporation

Inventor： Vincent Chatelet ,  Axel Quignard ,  Peter Wraight ,  Jean-Pierre Poyet ,  Fabien Nibodeau ,  Luke Perkins

IPC: E21B47/12 ,  G01V5/10

Abstract: An installation for intervention in a well, comprises a lower assembly comprising a neutron generator and a power source electrically connected to the neutron generator; a surface assembly comprising one or more safety devices, each safety device being either in a safe state or an unsafe state; and a communication module that connects the lower and surface assemblies. The surface assembly also comprises a surface transmitting device for transmitting data to the downhole assembly via the communication module including a first transmitter for transmitting an activating command, where the first transmitter transmits the activating command only if each of the safety device is in a safe state, and a second transmitter for transmitting a stopping command, where the second transmitter transmits the stopping command if one of the safety device is in an unsafe state.

公开(公告)号：US09472370B2

公开(公告)日：2016-10-18

申请号：US14108234

申请日：2013-12-16

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Luke Perkins

IPC: G01V5/04 ,  H01J27/04 ,  H01J27/02 ,  H05H3/06

CPC classification number: H01J27/04 ,  H01J27/024 ,  H05H3/06

Abstract: A radiation generator includes at least three extractor electrodes, with an ion source upstream of the at least three extractor electrodes to emit ions in a downstream direction toward the at least three extractor electrodes. There is a target downstream of the at least three extractor electrodes. The at least three extractor electrodes have independently selectable potentials so as to allow direction of an ion beam, formed from the ions, by the independently selectable potentials, toward different longitudinal and lateral regions of the target.

Abstract translation: 辐射发生器包括至少三个提取器电极，离子源在至少三个提取器电极的上游，以向下游方向朝向至少三个提取器电极发射离子。 在至少三个提取器电极的下游存在靶。 所述至少三个提取器电极具有独立的可选择电位，以便允许由离子形成的离子束通过独立可选择的电位朝向靶的不同纵向和横向区域的方向。

公开(公告)号：US20160139295A1

公开(公告)日：2016-05-19

申请号：US14540750

申请日：2014-11-13

Applicant: Schlumberger Technology Corporation

Inventor： Luke Perkins

IPC: G01V5/08

CPC classification number: G01V5/08 ,  H05H3/06

Abstract: A radiation generator includes an ion source region, and an acceleration column downstream of the extractor electrode and in fluid communication with the ion source region. The ion source region and the acceleration column contain an ionizable gas. A vacuum pump pumps the ionizable gas from the acceleration column to the ion source region such that a gas pressure in the acceleration column is less than a gas pressure in the ion source region.

Abstract translation: 辐射发生器包括离子源区和提取器电极下游并与离子源区流体连通的加速度柱。 离子源区域和加速度柱包含可离子化气体。 真空泵将来自加速塔的可离子化气体泵送到离子源区域，使得加速塔中的气体压力小于离子源区域中的气体压力。

公开(公告)号：US09105436B2

公开(公告)日：2015-08-11

申请号：US13830469

申请日：2013-03-14

Applicant: Schlumberger Technology Corporation

Inventor： Luke Perkins ,  Benjamin Levitt ,  Peter Wraight ,  Arthur D. Liberman

IPC: H01J27/02 ,  H05H6/00 ,  H01J27/20

CPC classification number: H01J27/024 ,  H01J27/205 ,  H05H6/00

Abstract: A method of generating ions in a radiation generator includes emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. The method also includes setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward the at least one extractor.

Abstract translation: 在辐射发生器中产生离子的方法包括从活性阴极和远离有源阴极的轨迹发射电子，至少一些电子在它们与可电离气体相互作用以产生离子时。 该方法还包括将活性阴极下游的至少一个提取器的电位设置为使得离子被吸引到至少一个提取器。

公开(公告)号：US20140263998A1

公开(公告)日：2014-09-18

申请号：US13830469

申请日：2013-03-14

Applicant: Schlumberger Technology Corporation

Inventor： Luke Perkins ,  Benjamin Levitt ,  Peter Wraight ,  Arthur D. Liberman

IPC: H01J27/02 ,  G01V5/10

CPC classification number: H01J27/024 ,  H01J27/205 ,  H05H6/00

Abstract: A method of generating ions in a radiation generator includes emitting electrons from an active cathode and on a trajectory away from the active cathode, at least some of the electrons as they travel interacting with an ionizable gas to produce ions. The method also includes setting a potential of at least one extractor downstream of the active cathode such that the ions are attracted toward the at least one extractor.

Abstract translation: 在辐射发生器中产生离子的方法包括从活性阴极和远离有源阴极的轨迹发射电子，至少一些电子在它们与可电离气体相互作用以产生离子时。 该方法还包括将活性阴极下游的至少一个提取器的电位设置为使得离子被吸引到至少一个提取器。

公开(公告)号：US20140263993A1

公开(公告)日：2014-09-18

申请号：US13830401

申请日：2013-03-14

Applicant: Schlumberger Technology Corporation

Inventor： Luke Perkins ,  Benjamin Levitt ,  Peter Wraight ,  Arthur D. Liberman

IPC: H01J37/08 ,  G01V5/04

CPC classification number: H01J27/205 ,  G21G4/02 ,  H01J27/02 ,  H01J27/08 ,  H01J27/16

Abstract: An ion source for use in a radiation generator includes a sealed envelope containing an ionizable gas therein. The ion source also includes a RF antenna external to the sealed envelope, the RF antenna to transmit time-varying electromagnetic fields within the sealed envelope for producing ions from the ionizable gas. There is at least one extractor within the sealed envelope having a potential such that the ions are attracted toward the at least one extractor.

Abstract translation: 用于辐射发生器的离子源包括其中含有可电离气体的密封外壳。 离子源还包括在密封外壳外部的RF天线，RF天线用于传输密封外壳内的时变电磁场，用于从可电离气体产生离子。 密封外壳内有至少一个提取器具有使得离子被吸引到至少一个提取器的电位。

公开(公告)号：US20140184074A1

公开(公告)日：2014-07-03

申请号：US13728964

申请日：2012-12-27

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Luke Perkins

IPC: H01J27/02 ,  H01J27/04

CPC classification number: H01J27/04 ,  H01J37/08 ,  H01J2237/082 ,  H05H3/06

Abstract: An ion source for use in a radiation generator tube includes a back passive cathode electrode, a passive anode electrode downstream of the back passive cathode electrode, a magnet adjacent the anode, and a front passive cathode electrode downstream of the passive anode electrode. The front passive cathode electrode and the back passive cathode electrode define an ionization region therebetween. At least one field emitter array (FEA) cathode is configured to electrostatically discharge due to an electric field in the ion source. The back passive cathode electrode and the passive anode electrode, and the front passive cathode electrode and the passive anode electrode, have respective voltage differences therebetween, and the magnet generating a magnetic field, such that a Penning-type trap is produced to confine electrons from the electrostatic discharge to the ionization region. At least some of the electrons in the ionization region interact with an ionizable gas to create ions.

Abstract translation: 用于辐射发生器管的离子源包括后无源阴极电极，位于后无源阴极电极下游的无源阳极电极，与阳极相邻的磁体和在被动阳极电极下游的前无源阴极电极。 前无源阴极电极和后无源阴极电极在其间限定电离区域。 至少一个场发射极阵列（FEA）阴极被配置为由于离子源中的电场而静电放电。 后无源阴极电极和被动阳极电极以及前无源阴极电极和被动阳极电极之间具有各自的电压差，并且磁体产生磁场，使得产生Penning型阱以将电子限制在 静电放电到电离区域。 电离区域中的至少一些电子与可电离气体相互作用以产生离子。