公开(公告)号：EP2662686A4

公开(公告)日：2017-07-19

申请号：EP11820975

申请日：2011-01-20

申请人： LANZHOU HAIMO TECH CO LTD ,  LI HONGDI

发明人： LI HONGDI ,  CHEN JIGE

IPC分类号： G01N23/04 ,  G01N33/28

CPC分类号： G01T1/16 ,  G01N23/046 ,  G01N33/2823 ,  G01N2223/1013 ,  G01N2223/419 ,  G01N2223/501 ,  G01N2223/628 ,  G01N2223/64 ,  G01T1/20 ,  G01T1/249

摘要： The present invention relates to a positron tomography imaging apparatus for a multiphase flow in an oil pipeline, which apparatus utilizes positron and electron annihilation generating a pair of coincidence gamma-rays of 511keV energy as tomography imaging means and provides an on-line tomography imaging function for metering a multiphase flow in an oil pipeline of an oil field. The apparatus comprises a plurality of sets of parallel high-precision gamma-ray detector arrays with a particular space structure arrangement, a positron radioactive source and a shield, and can acquire a phase fraction of such multiphase flow mixture as oil, gas and water under a condition of a single radioactive source by combining an image processing function. The design of a plurality of sets of high-precision detector arrays also greatly improves accuracy of a multiphase flow metering and its applicability in multiphase flows of different flow patterns. The video information of fluid generated by it will significantly enrich oil, gas metering information for petroleum industry and provide basic data for a more effective reservoir management and production optimization.

摘要翻译： 本发明涉及一种用于石油管道中的多相流的正电子断层成像设备，该设备利用正电子和电子湮灭产生一对511keV能量的符合伽玛射线作为断层摄影成像装置，并提供在线断层摄影成像功能 用于在油田的输油管道中计量多相流。 该设备包括具有特定空间结构布置，正电子放射源和屏蔽的多组平行的高精度伽马射线探测器阵列，并且可以获取如石油，天然气和水之类的多相流混合物的相分数 通过组合图像处理功能的单个放射源的条件。 多套高精度探测器阵列的设计也大大提高了多相流量测量的准确性，并且在不同流动模式的多相流中的适用性。 其产生的流体视频信息将显着丰富石油工业的石油，天然气计量信息，并为更有效的油藏管理和生产优化提供基础数据。