公开(公告)号：WO2010090795A1

公开(公告)日：2010-08-12

申请号：PCT/US2010/020711

申请日：2010-01-12

Applicant: SCHLUMBERGER CANADA LIMITED ,  SCHLUMBERGER TECHNOLOGY B.V. ,  PRAD RESEARCH AND DEVELOPMENT LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  STEPHENSON, Kenneth, E.

Inventor： STEPHENSON, Kenneth, E.

IPC: H05H3/06

CPC classification number: H05H3/06

Abstract: A neutron generator includes a sealed envelope providing a low pressure environment for a gas. One end of the envelope defines an ion source chamber. A target electrode is disposed at the other end of the envelope. An extracting electrode is spaced apart from the target electrode by an accelerating gap. The extracting electrode bounds the ion source chamber. A dispenser cathode electrode and grid electrode are disposed in the ion source chamber for inducing ionization in the ion source chamber. The dispenser cathode electrode, the grid electrode and the extracting electrode operate at a positive high voltage potential and the target electrode operates at or near ground potential. This configuration provides an electric field gradient that accelerates ions towards the target electrode to induce collisions of ions with target material, thereby causing fusion reactions that generate neutrons. High voltage power supply circuit means supplies a positive high voltage signal to the electrodes of the ion source. The positive high voltage signal has a low voltage signal component floating on a positive high voltage signal component. For the dispensing cathode electrode, the low voltage signal component can be a DC or AC signal suitable for emitting electrons from the dispensing cathode electrode. For the grid electrode, the low voltage signal component can be a positive pulsed-mode signal (preferably with magnitude in the range between 100 to 300 volts). High voltage insulation surrounds and electrically insulates the high voltage power supply circuit means. Other ion source electrode configurations, such as cold cathode (Penning) ion source and RF-driven ion source, can also be used.

Abstract translation: 中子发生器包括为气体提供低压环境的密封外壳。 信封的一端限定离子源室。 目标电极设置在信封的另一端。 提取电极通过加速间隙与目标电极间隔开。 提取电极界定离子源室。 分配器阴极电极和栅电极设置在离子源室中，用于在离子源室中诱导离子化。 分配器阴极电极，栅电极和提取电极以正高电位工作，目标电极工作在或接近地电位。 该配置提供电场梯度，其将离子加速到靶电极以引起离子与靶材料的碰撞，从而引起产生中子的聚变反应。 高电压电源电路为离子源的电极提供正高电压信号。 正高电压信号具有浮置在正高电压信号分量上的低电压信号分量。 对于分配阴极电极，低电压信号分量可以是适于从分配阴极电极发射电子的DC或AC信号。 对于栅格电极，低电压信号分量可以是正脉冲模式信号（优选地在100至300伏之间的幅度范围内）。 高压绝缘包围并电绝缘高压电源电路装置。 还可以使用其它离子源电极配置，例如冷阴极（Penning）离子源和RF驱动的离子源。

公开(公告)号：WO1998023931A1

公开(公告)日：1998-06-04

申请号：PCT/GB1997003268

申请日：1997-11-27

Applicant: SCHLUMBERGER LIMITED ,  PETROLEUM RESEARCH AND DEVELOPMENT N.V. ,  SCHLUMBERGER TECHNOLOGY B.V. ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  STEPHENSON, Kenneth, E. ,  THERON, Bernard

Inventor： SCHLUMBERGER LIMITED ,  PETROLEUM RESEARCH AND DEVELOPMENT N.V. ,  SCHLUMBERGER TECHNOLOGY B.V. ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER

IPC: G01F01/74

CPC classification number: G01F1/74 ,  E21B47/1015 ,  E21B47/102 ,  G01F1/708 ,  G01F1/712

Abstract: Measurement of gas flow in a nearly-horizontal ascending borehole utilising a pair of correlated spaced sensors (49n, 49f) that can detect "directly" the difference between gas (11) and liquid (13: oil and/or water), which sensor pair (49) is carried on a logging tool (41) positioned within the borehole (20) itself such that the individual sensors (49) are disposed so as to be actually in the path of any gas bubbles (12) likely to be in the fluid. The correlated output of the sensor pair (49) allows a determination of the gas flow velocity, and if at the same time measurements are taken that provide an indication of the hold-up of the gas bubbles there may by calculation be determined the flow rate both of the gas and of the fluid.

Abstract translation: 使用能够直接检测气体（11）和液体（13：油和/或水）之间的差异的一对相关间隔传感器（49n，49f）来测量几乎水平的上升钻孔中的气体流量，该传感器 对（49）被承载在位于钻孔（20）本身内的测井工具（41）上，使得各个传感器（49）被设置成实际上处于可能处于钻孔中的任何气泡（12）的路径中 流体。 传感器对（49）的相关输出允许确定气体流速，并且如果同时进行测量以提供气泡的保持的指示，则可以通过计算来确定流量 气体和液体两者。

公开(公告)号：US3891392A

公开(公告)日：1975-06-24

申请号：US32623373

申请日：1973-01-24

Applicant: BETTS PETER ALAN ,  STEPHENSON KENNETH

Inventor： BETTS PETER ALAN ,  STEPHENSON KENNETH

IPC: B01L3/00 ,  B01L3/02 ,  G01F13/00 ,  G01N1/10

CPC classification number: B01L3/561 ,  B01L3/021 ,  B01L3/0213 ,  Y10T436/2575

Abstract: A method of and device for maintaining a column of liquid comprising comprises a straight open-ended tube, and a plug of porous material frictionally located within the bore of the tube at a predetermined distance from one end of the tube. A column of liquid may be maintained within such a tube by placing the said one end of the tube in communication with a supply of liquid, and applying suction to the other end of the tube to draw a column of liquid into the tube to a level above the plug. The suction is then removed to allow the column of liquid to fall until its surface contacts the plug, whereupon the remaining column of liquid is maintained by interaction of the respective physical characteristics of the liquid, the plug, and the tube.

Abstract translation: 用于维持液体柱的方法和装置包括直管开口管和多孔材料塞，其摩擦地位于管的孔内，距管的一端预定距离。 通过将管的所述一端放置在与液体供应器连通的位置，将液体的柱保持在这种管内，并向管的另一端施加吸力以将一列液体引入管中 插头上方 然后抽吸抽吸以允许液体柱落下直到其表面接触塞子，于是剩余的液体柱通过液体，塞子和管子的相应物理特性的相互作用来维持。