公开(公告)号：US09053893B2

公开(公告)日：2015-06-09

申请号：US13829697

申请日：2013-03-14

Applicant: Schlumberger Technology Corporation

Inventor： Jani Reijonen ,  Frederic Gicquel ,  Joel L. Groves ,  Peter Wraight ,  Kenneth E. Stephenson

IPC: H01J27/02 ,  G21G4/02

CPC classification number: H01J27/024 ,  G21G4/02

Abstract: A radiation generator includes an insulator, with an ion source carried within the insulator and configured to generate ions and indirectly generate undesirable particles. An extractor electrode is carried within the insulator downstream of the ion source and has a first potential. An intermediate electrode is carried within the insulator downstream of the extractor electrode at a ground potential and is shaped to capture the undesirable conductive particles. In addition, a suppressor electrode is carried within the insulator downstream of the intermediate electrode and has a second potential opposite in sign to the first potential. A target is carried within the insulator downstream of the suppressor electrode. The extractor electrode and the suppressor electrode have a voltage therebetween such that an electric field generated in the insulator accelerates the ions generated by the ion source toward the target.

Abstract translation: 辐射发生器包括绝缘体，其中离子源承载在绝缘体内并被配置成产生离子并间接产生不期望的颗粒。 提取器电极承载在离子源下游的绝缘体内并具有第一电位。 中间电极承载在提取器电极下游的绝缘体的地电势处，并且成形为捕获不期望的导电颗粒。 此外，抑制电极被承载在中间电极下游的绝缘体内，并且具有与第一电位相反的第二电位。 目标在绝缘子的下游被保持在抑制电极的下游。 提取器电极和抑制电极之间具有电压，使得在绝缘体中产生的电场将离子源产生的离子朝向目标物加速。

公开(公告)号：US20150076337A1

公开(公告)日：2015-03-19

申请号：US14553611

申请日：2014-11-25

Applicant: Schlumberger Technology Corporation

Inventor： Bradley Albert Roscoe ,  James A. Grau ,  Zilu Zhou ,  Kenneth E. Stephenson ,  Markus Berheide

IPC: G01T1/208 ,  G01T1/20 ,  G01V5/10

CPC classification number: G01V5/125 ,  G01T1/20 ,  G01T1/208 ,  G01V5/08 ,  G01V5/101 ,  G01V5/102 ,  G01V5/105

Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties. A preferable detector choice is one where the required measurement precision (logging speed) is obtained for all of the required inelastic elements and/or minimization of unwanted background signals that complicate the data analysis.

Abstract translation: 描述了用于伽马射线检测的方法和相关系统。 伽马射线探测器取决于其性质以及这些属性如何受数据分析的影响。 井下探测器的理想性能包括： 高温操作，可靠/坚固的包装，良好的分辨率，高计数能力，高密度，高Z，低放射性背景，低中子截面，高光输出，单衰减时间，效率，线性度，尺寸可用性等。 没有一个单一的检测器具有所有这些特性的最佳优点，井下工具设计优选地在现有检测器中选择这些的最佳组合，这将优化所需环境中的测量的性能并且与剩余的非最佳特性一起使用。 优选的检测器选择是对于所有所需的非弹性元件获得所需的测量精度（测井速度）和/或使不需要的背景信号的最小化使得数据分析复杂化的选择。

公开(公告)号：US08901483B2

公开(公告)日：2014-12-02

申请号：US13852965

申请日：2013-03-28

Applicant: Schlumberger Technology Corporation

Inventor： Bradley Albert Roscoe ,  James A. Grau ,  Zilu Zhou ,  Kenneth E. Stephenson ,  Markus Berheide

IPC: G01V5/08 ,  G01V5/10 ,  G01V5/12

CPC classification number: G01V5/125 ,  G01T1/20 ,  G01T1/208 ,  G01V5/08 ,  G01V5/101 ,  G01V5/102 ,  G01V5/105

Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties. A preferable detector choice is one where the required measurement precision (logging speed) is obtained for all of the required inelastic elements and/or minimization of unwanted background signals that complicate the data analysis.

Abstract translation: 描述了用于伽马射线检测的方法和相关系统。 伽马射线探测器取决于其性质以及这些属性如何受数据分析的影响。 井下探测器的理想性能包括： 高温操作，可靠/坚固的包装，良好的分辨率，高计数能力，高密度，高Z，低放射性背景，低中子截面，高光输出，单衰减时间，效率，线性度，尺寸可用性等。 没有一个单一的检测器具有所有这些特性的最佳优点，井下工具设计优选地在现有检测器中选择这些的最佳组合，这将优化所需环境中的测量的性能并且与剩余的非最佳特性一起使用。 优选的检测器选择是对于所有所需的非弹性元件获得所需的测量精度（测井速度）和/或使不需要的背景信号的最小化使得数据分析复杂化的选择。

公开(公告)号：US08853617B1

公开(公告)日：2014-10-07

申请号：US13829554

申请日：2013-03-14

Applicant: Schlumberger Technology Corporation

Inventor： Kenneth E. Stephenson

IPC: G01V5/00 ,  G01V11/00 ,  H01J43/10

CPC classification number: H01J43/10 ,  E21B47/102 ,  G01V11/002

Abstract: A photomultiplier includes a tube and plurality of dynodes within the tube and including at least one first dynode and at least one second dynode. A respective insulator is between adjacent pairs of dynodes. The at least one first dynode includes a conductive outer ring and a medial conductive member coupled to the conductive outer ring in spaced relation therefrom. The at least one second dynode includes a conductive outer ring and a conductive inner ring supported within the conductive outer ring.

Abstract translation: 光电倍增管包括管和管内的多个倍增电极，并且包括至少一个第一倍增电极和至少一个第二倍增电极。 相应的绝缘体在相邻的倍增电极对之间。 所述至少一个第一倍增电极包括导电外环和与所述导电外环以间隔开的关系连接的中间导电构件。 所述至少一个第二倍增电极包括导电外环和支撑在所述导电外环内的导电内环。

公开(公告)号：US20140263996A1

公开(公告)日：2014-09-18

申请号：US13829697

申请日：2013-03-14

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION

Inventor： Jani Reijonen ,  Frederic Gicquel ,  Joel L. Groves ,  Peter Wraight ,  Kenneth E. Stephenson

IPC: H01J27/02 ,  G01V5/04

CPC classification number: H01J27/024 ,  G21G4/02

Abstract: A radiation generator includes an insulator, with an ion source carried within the insulator and configured to generate ions and indirectly generate undesirable particles. An extractor electrode is carried within the insulator downstream of the ion source and has a first potential. An intermediate electrode is carried within the insulator downstream of the extractor electrode at a ground potential and is shaped to capture the undesirable conductive particles. In addition, a suppressor electrode is carried within the insulator downstream of the intermediate electrode and has a second potential opposite in sign to the first potential. A target is carried within the insulator downstream of the suppressor electrode. The extractor electrode and the suppressor electrode have a voltage therebetween such that an electric field generated in the insulator accelerates the ions generated by the ion source toward the target.

Abstract translation: 辐射发生器包括绝缘体，其中离子源承载在绝缘体内并被配置成产生离子并间接产生不期望的颗粒。 提取器电极承载在离子源下游的绝缘体内并具有第一电位。 中间电极承载在提取器电极下游的绝缘体的地电势处，并且成形为捕获不期望的导电颗粒。 此外，抑制电极被承载在中间电极下游的绝缘体内，并且具有与第一电位相反的第二电位。 目标在绝缘子的下游被保持在抑制电极的下游。 提取器电极和抑制电极之间具有电压，使得在绝缘体中产生的电场将离子源产生的离子朝向目标加速。

公开(公告)号：US20130214145A1

公开(公告)日：2013-08-22

申请号：US13852965

申请日：2013-03-28

Applicant: Schlumberger Technology Corporation

Inventor： Bradley Albert Roscoe ,  James A. Grau ,  Zilu Zhou ,  Kenneth E. Stephenson ,  Markus Berheide

IPC: G01V5/08 ,  G01V5/10 ,  G01V5/12

CPC classification number: G01V5/125 ,  G01T1/20 ,  G01T1/208 ,  G01V5/08 ,  G01V5/101 ,  G01V5/102 ,  G01V5/105

Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties. A preferable detector choice is one where the required measurement precision (logging speed) is obtained for all of the required inelastic elements and/or minimization of unwanted background signals that complicate the data analysis.