公开(公告)号：WO2014138963A1

公开(公告)日：2014-09-18

申请号：PCT/CA2014/050205

申请日：2014-03-10

Applicant: XACT DOWNHOLE TELEMETRY INC.

Inventor： CAMWELL, Paul ,  DRUMHELLER, Douglas S.

IPC: E21B47/16

CPC classification number: E21B47/16

Abstract: An acoustic receiver for use on a drill string includes a housing attachable to the drill string; a first sensor mounted within the housing for measuring a first parameter at a first location on the drill string and for generating a first parameter signal representative of the first parameter: a second sensor mounted within the housing for measuring a second parameter at a second location on the drill string and for generating a second parameter signal representative of the second parameter; and a controller mounted within the housing and communicatively coupled to the first and second sensors. The magnitudes of the first and second parameters vary in proportion to magnitude of the acoustic wave and the first and second parameters have a quadrature phase relationship. The controller is configured to combine the first and second parameter signals to determine the magnitude of the acoustic wave.

Abstract translation: 用于钻柱的声学接收器包括可附接到钻柱的壳体; 安装在所述壳体内的第一传感器，用于测量所述钻柱上的第一位置处的第一参数，并且用于产生表示所述第一参数的第一参数信号：安装在所述壳体内的第二传感器，用于在第二位置处测量第二参数 钻柱，用于产生代表第二参数的第二参数信号; 以及控制器，其安装在所述壳体内并且通信地耦合到所述第一和第二传感器。 第一和第二参数的大小与声波的幅度成比例地变化，并且第一和第二参数具有正交相位关系。 控制器被配置为组合第一和第二参数信号以确定声波的幅度。

公开(公告)号：EP2971500A1

公开(公告)日：2016-01-20

申请号：EP14762491.0

申请日：2014-03-10

Applicant: Xact Downhole Telemetry, Inc.

Inventor： CAMWELL, Paul ,  DRUMHELLER, Douglas S.

IPC: E21B47/16

CPC classification number: E21B47/16

Abstract: An acoustic receiver for use on a drill string includes a housing attachable to the drill string; a first sensor mounted within the housing for measuring a first parameter at a first location on the drill string and for generating a first parameter signal representative of the first parameter: a second sensor mounted within the housing for measuring a second parameter at a second location on the drill string and for generating a second parameter signal representative of the second parameter; and a controller mounted within the housing and communicatively coupled to the first and second sensors. The magnitudes of the first and second parameters vary in proportion to magnitude of the acoustic wave and the first and second parameters have a quadrature phase relationship. The controller is configured to combine the first and second parameter signals to determine the magnitude of the acoustic wave.