Method of and apparatus for telemetering information from a point in a
well borehole to the earth's surface
    2.
    再颁专利
    Method of and apparatus for telemetering information from a point in a well borehole to the earth's surface 失效
    从井眼到地球表面的信息遥测信息的方法和装置

    公开(公告)号:USRE32463E

    公开(公告)日:1987-07-28

    申请号:US92087

    申请日:1979-11-06

    IPC分类号: E21B47/18

    CPC分类号: E21B47/18 E21B47/185

    摘要: Down-hole information from rotary well drilling operations is transmitted to a surface or remote location by the venting of drilling fluid from the interior of the drill stem into the bore hole annulus in a binary coded decimal format. A valve is caused to operate by the digital output of one or more down-hole transducers thus releasing and restoring the drilling fluid pressure in the desired sequence. A "sub" contains the necessary electronics, power supply and a motorized valve assembly. Commands from the surface to transmit information from any one of the transducers are transmitted by means of sequential pulses in a binary coded decimal format, in the drilling fluid pressure are provided by the operator by deliberately decreasing and then increasing the surface pump pressure in a sequence to which the applicable down-hole actuating means is responsive.

    Method of and apparatus for telemetering information from a point in a
well borehole to the earth's surface
    3.
    发明授权
    Method of and apparatus for telemetering information from a point in a well borehole to the earth's surface 失效
    从井眼到地球(3 s的表面)遥测信息的方法和装置

    公开(公告)号:US4078620A

    公开(公告)日:1978-03-14

    申请号:US664745

    申请日:1976-03-08

    IPC分类号: E21B47/18 E21C7/06

    CPC分类号: E21B47/18 E21B47/185

    摘要: Down-hole information from rotary well drilling operations is transmitted to a surface or remote location by the venting of drilling fluid from the interior of the drill stem into the bore hole annulus in a binary coded decimal format. A valve is caused to operate by the digital output of one or more down-hole transducers thus releasing and restoring the drilling fluid pressure in the desired sequence. A "sub" contains the necessary electronics, power supply and a motorized valve assembly. Commands from the surface to transmit information from any one of the transducers are transmitted by means of sequential pulses in a binary coded decimal format, in the drilling fluid pressure are provided by the operator by deliberately decreasing and then increasing the surface pump pressure in a sequence to which the applicable down-hole actuating means is responsive.

    摘要翻译: 来自旋转钻井操作的井下信息通过将钻井液从钻杆内部排出到二进制编码十进制格式的钻孔环中而传递到表面或远程位置。 通过一个或多个井下换能器的数字输出使阀门工作,从而以期望的顺序释放和恢复钻井液压力。 “子”包含必要的电子,电源和电动阀组件。 通过二进制编码十进制格式的顺序脉冲从表面传送来自传感器中的任何一个的信号传送,钻井液压力由操作者通过故意地减小然后以顺序增加表面泵压力来提供 适用的井下致动装置是响应的。