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公开(公告)号：EP0660137B1
公开(公告)日：1998-09-09
申请号：EP94308940.9
申请日：1994-12-01
发明人： Aron, Jeffrey B. , Airey, Peter J.
CPC分类号： B06B1/0614 , G01V1/523 , Y10S367/911 , Y10S367/912
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公开(公告)号：EP0778473A3
公开(公告)日：1999-08-11
申请号：EP96308801.8
申请日：1996-12-04
IPC分类号： G01V1/52
CPC分类号： E21B47/011 , G01V1/52 , G01V2001/526
摘要： An acoustic wave transducer useful in sonic logging while drilling a borehole includes an array of transducer elements mounted circumferentially around a drill collar. The elements are bonded in an elastomer ring that is received in an external groove in the collar and are protected by a shield having windows. The elements are electrically connected in parallel so that when excited by an electrical pulse, the elements generate a monopole acoustic wave that propagates out into the formation. When used as a receiver, the elements detect averaged acoustic waves from the formation around the circumference of the collar and have minimum sensitivity to multipole waves traveling through the drill collar.
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公开(公告)号：EP0660137A3
公开(公告)日：1995-10-11
申请号：EP94308940.9
申请日：1994-12-01
发明人： Aron, Jeffrey B. , Airey, Peter J.
CPC分类号： B06B1/0614 , G01V1/523 , Y10S367/911 , Y10S367/912
摘要： A sonic transmitter assembly (14) for use in logging-while-drilling includes stacks (30,31) of piezoelectric crystals (32) that extend outwardly from a nodal plate member (33), and a generally tubular assembly that contains such stacks and has end portions that are sealingly mounted in diametrically opposed holes (22,23) in a pipe member (13) that forms a part of the drill string. Spring mass isolator systems (45,46,51,88,89) are employed to inhibit transmission of acoustic waves to the pipe member. Balanced mounting forces and the bilateral symmetry of the construction also inhibit transmission of acoustic waves to the pipe member (13), particularly waves which are asymmetric with respect to the longitudinal axis of the pipe member.
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公开(公告)号：EP0778473B1
公开(公告)日：2004-04-28
申请号：EP96308801.8
申请日：1996-12-04
CPC分类号： E21B47/011 , G01V1/52 , G01V2001/526
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公开(公告)号：EP0778473A2
公开(公告)日：1997-06-11
申请号：EP96308801.8
申请日：1996-12-04
IPC分类号： G01V1/52
CPC分类号： E21B47/011 , G01V1/52 , G01V2001/526
摘要： An acoustic wave transducer useful in sonic logging while drilling a borehole includes an array of transducer elements mounted circumferentially around a drill collar. The elements are bonded in an elastomer ring that is received in an external groove in the collar and are protected by a shield having windows. The elements are electrically connected in parallel so that when excited by an electrical pulse, the elements generate a monopole acoustic wave that propagates out into the formation. When used as a receiver, the elements detect averaged acoustic waves from the formation around the circumference of the collar and have minimum sensitivity to multipole waves traveling through the drill collar.
摘要翻译： 在钻孔时可用于声波测井的声波换能器包括周向围绕钻铤安装的换能器元件阵列。 元件被接合在弹性体环中，弹性体环被容纳在轴环中的外部凹槽中并被具有窗口的屏蔽件保护。 这些元件并联电连接，使得当被电脉冲激发时，元件产生传播到地层中的单极声波。 当用作接收器时，元件检测来自围绕圆环周围的地层的平均声波，并且对穿过钻铤的多极波具有最小的灵敏度。
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公开(公告)号：EP0660137A2
公开(公告)日：1995-06-28
申请号：EP94308940.9
申请日：1994-12-01
发明人： Aron, Jeffrey B. , Airey, Peter J.
CPC分类号： B06B1/0614 , G01V1/523 , Y10S367/911 , Y10S367/912
摘要： A sonic transmitter assembly (14) for use in logging-while-drilling includes stacks (30,31) of piezoelectric crystals (32) that extend outwardly from a nodal plate member (33), and a generally tubular assembly that contains such stacks and has end portions that are sealingly mounted in diametrically opposed holes (22,23) in a pipe member (13) that forms a part of the drill string. Spring mass isolator systems (45,46,51,88,89) are employed to inhibit transmission of acoustic waves to the pipe member. Balanced mounting forces and the bilateral symmetry of the construction also inhibit transmission of acoustic waves to the pipe member (13), particularly waves which are asymmetric with respect to the longitudinal axis of the pipe member.
摘要翻译： 用于随钻测井的声波发射器组件（14）包括从节点板构件（33）向外延伸的压电晶体（32）的堆叠（30,31），以及包含这种堆叠的大致管状组件以及 具有密封地安装在形成钻柱的一部分的管件（13）中的径向相对的孔（22,23）中的端部。 采用弹簧质量隔离系统（45,46,51,88,89）来抑制声波传输到管件。 平衡的安装力和结构的两侧对称性也阻止声波传输到管件（13），特别是相对于管件的纵向轴线不对称的波。
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