公开(公告)号：US6097786A

公开(公告)日：2000-08-01

申请号：US81161

申请日：1998-05-18

申请人： Joel Groves ,  Harold Pfutzner ,  Jean-Pierre Poyet ,  Peter Wraight

发明人： Joel Groves ,  Harold Pfutzner ,  Jean-Pierre Poyet ,  Peter Wraight

IPC分类号： G01N23/12 ,  G01N23/06

CPC分类号： G01N23/12

摘要： A method and apparatus for characterizing a multiphase mixture by irradiating the mixture with X-rays, collecting the photons that emanate from the mixture in response to the irradiation, generating a signal responsive to the aggregate energy of the collected photons, and analyzing the signal to characterize the mixture. Preferably, the mixture is irradiated by repetitively pulsing an X-ray tube and the photons are collected using a multi-layer detector. The method and apparatus may be used to determine the flow rate, flow velocities, and/or composition of the multiphase mixture. In other embodiments, a plurality of X-ray sources and/or detectors may be used.

摘要翻译： 通过用X射线照射混合物来表征多相混合物的方法和装置，收集响应于照射从混合物发出的光子，产生响应于所收集的光子的聚集能量的信号，并将信号分析 表征混合物。 优选地，通过重复地脉冲X射线管照射混合物，并且使用多层检测器收集光子。 该方法和装置可用于确定多相混合物的流速，流速和/或组成。 在其他实施例中，可以使用多个X射线源和/或检测器。

公开(公告)号：US06781115B2

公开(公告)日：2004-08-24

申请号：US10091251

申请日：2002-03-05

申请人： Christian Stoller ,  Xavier Herve ,  Sunil N. Gulrajani ,  Peter Wraight ,  Verna L. Lomax ,  Dennis J. Pittman ,  Jean-Pierre Poyet

发明人： Christian Stoller ,  Xavier Herve ,  Sunil N. Gulrajani ,  Peter Wraight ,  Verna L. Lomax ,  Dennis J. Pittman ,  Jean-Pierre Poyet

IPC分类号： G01V504

CPC分类号： G01V5/104 ,  G01V5/04

摘要： A system and method are disclosed for detecting radiation phenomena in an area surrounding a wellbore traversing an earth formation. A logging instrument is equipped with combined radiation detectors to provide multiple measurements at the same axial position along the instrument axis, without the use of rotating parts within the instrument. Shielded or segmented detectors provide azimuthally focused detector sensitivity. A controllable radiation source is optionally disposed on the instrument for subsurface irradiation. Also disclosed is the use of radioactive materials in unison with the logging instrument to determine subsurface flow and reservoir characteristics.

摘要翻译： 公开了一种用于检测穿过地层的井身周围区域中的辐射现象的系统和方法。 测井仪器配备有组合式辐射探测器，可在仪器轴线的同一轴向位置提供多次测量，而无需使用仪器内的旋转部件。 屏蔽或分段检测器提供方位角聚焦检测器灵敏度。 可控辐射源可选地设置在仪器上用于地下照射。 还公开了使用放射性材料与测井仪器一致以确定地下水流和储层特性。