METHOD AND APPARATUS FOR THE DOWNHOLE IN-SITU DETERMINATION OF THE SPEED OF SOUND IN A FORMATION FLUID
    1.
    发明公开
    METHOD AND APPARATUS FOR THE DOWNHOLE IN-SITU DETERMINATION OF THE SPEED OF SOUND IN A FORMATION FLUID 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR IN-SITU-BESTIMMUNG DER SCHALLGESCHWINDIGKEIT IN EINERFORMATIONSFLÜSSIGKEIT

    公开(公告)号:EP2938819A1

    公开(公告)日:2015-11-04

    申请号:EP12890893.6

    申请日:2012-12-28

    摘要: An apparatus and a method for measuring a speed of sound in a fluid in a well bore may include a frame adapted to receive the fluid there through are provided. The apparatus includes an acoustic source mounted on the frame; an acoustic detector to measure a signal propagating through the fluid, the acoustic detector disposed proximate the frame at a known distance from the acoustic source; and a test circuit adapted to synchronize the acoustic detector with a signal propagating through the frame. A method to determine physical properties of a fluid in a geological formation including a shear wave anisotropy in the geological formation and the formation composition using the fluid density and the fluid speed of sound is also provided.

    摘要翻译: 用于测量井眼中的流体中的声速的装置和方法可以包括适于在其中接收流体的框架。 该装置包括安装在框架上的声源; 声学检测器,用于测量通过流体传播的信号;声学检测器,设置在与声源相距已知距离的框架附近; 以及测试电路,其适于使声学检测器与通过该帧传播的信号同步。 还提供了一种用于确定包括地质地层中的剪切波各向异性以及使用流体密度和流体速度的地层组成的地质地层中的流体的物理性质的方法。