发明名称 Method and apparatus for remote control of wellbore end devices
摘要 <p>A wellbore remote control system is disclosed which includes (1) a transmission apparatus for generating at least one acoustic transmission having a particular transmission frequency, (2) a reception apparatus which includes an electronic circuit (preferably digital) which detects and identifies the acoustic transmissions, and which provides an actuation signal to an electrically-actuated wellbore tool if a match is detected.</p>
申请公布号 GB2302607(A) 申请公布日期 1997.01.22
申请号 GB19960019568 申请日期 1996.02.07
申请人 * BAKER HUGHES INCORPORATED 发明人 PAULO * TUBEL;DAVID E * ROTHERS;ALBERT A * MULLINS II;MARK * MCCORY
分类号 E21B23/00;E21B23/04;E21B34/06;E21B41/00;E21B43/1185;E21B47/06;E21B47/18;(IPC1-7):E21B47/18;F16B31/00 主分类号 E21B23/00
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