-
公开(公告)号:US06354146B1
公开(公告)日:2002-03-12
申请号:US09334830
申请日:1999-06-17
IPC分类号: G01N2900
CPC分类号: G01F1/74 , E21B47/101 , G01F1/668 , G01F1/712 , G01N29/02 , G01N29/222 , G01N2291/011 , G01N2291/015 , G01N2291/0224 , G01N2291/02836 , G01N2291/048 , G01N2291/102
摘要: A method and apparatus for measuring properties of fluid flowing through a bore, using a signal transmitted substantially perpendicularly to the direction of flow. A preferred embodiment uses a pair of acoustic transducers mounted in the annular body of the fluid conduit. The tool is constructed so as to be able to operate for a period of years in a downhole environment without maintenance or replacement. An transducer is also described that is adapted to fit within the dimensions of an annular body without suffering a reduction in the length of the transducer backing.
摘要翻译: 一种用于测量流过孔的流体的性质的方法和装置,其使用基本上垂直于流动方向传播的信号。 优选实施例使用安装在流体导管的环形体中的一对声换能器。 该工具的结构是能够在井下环境中运行多年,无需维护或更换。 还描述了一种换能器,其适于装配在环形体的尺寸内,而不会减少换能器背衬的长度。