公开(公告)号：EP0866951A4

公开(公告)日：1998-12-09

申请号：EP96945923

申请日：1996-12-05

申请人： PANEX CORP

发明人： DELATORRE LEROY C

IPC分类号： E21B23/03 ,  E21B47/10 ,  G01F1/36 ,  G01F1/40 ,  G01F1/78 ,  E21B47/00 ,  G01L7/06

CPC分类号： G01F1/40 ,  E21B23/03 ,  E21B47/10 ,  G01F1/363

摘要： A differential pressure device installed in a side pocket tool (146) for use in a borehole where a differential pressure (P1, P2) is converted into a linear motion by a main bellows (62) and this main bellows is connected by a linear to rotative force device or torque converter (86) to develop a torque force about the torque axis (44). A second bellows (80) is used as an interior, control bellows for limiting the differential pressure applied to the exterior of main bellows (62) so that overpressure will not destroy either bellows. The torque force is applied to a torque responsive pressure device (146) to develop a pressure signal. The tool is preferably used in a side pocket mandrel (140), and the pressure signal measurements that allow determination of flow rate by standard hydraulic equations can be recorded downhole by a memory recorder (144) or else transmitted to the earth's surface for real time recording.

摘要翻译： 一种安装在侧袋工具（146）中的差压装置，用于井眼中差压（P1，P2）被主波纹管（62）转换成线性运动，并且该主波纹管通过线性 旋转力装置或变矩器（86）产生关于扭矩轴（44）的扭矩力。 第二波纹管（80）用作内部控制波纹管，用于限制施加到主波纹管（62）外部的压差，使得过压不会破坏波纹管。 扭矩力被施加到转矩响应压力装置（146）以产生压力信号。 该工具优选用于侧袋心轴（140）中，并且允许通过标准液压方程确定流速的压力信号测量结果可以由存储器记录器（144）记录在井下，或者实时传输到地球表面 记录。