公开(公告)号：US4834209A

公开(公告)日：1989-05-30

申请号：US104794

申请日：1987-10-05

申请人： Charles B. Vogel ,  Mike Davis ,  James O. Guy ,  John R. E. Smith

发明人： Charles B. Vogel ,  Mike Davis ,  James O. Guy ,  John R. E. Smith

IPC分类号： G01V1/46

CPC分类号： G01V1/46

摘要： A transverse-wave logging tool consists of a plurality of sets of transducers mounted around a cylindrical mandrel. The transducer active faces are characterized by two orthogonal dimensions, one of which dimensions is a half-wavelength long relative to the acoustic excitation energy applied to a transmitter transducer and the transverse-wave formation velocity. Receiver transducers detect converted-compressional waves resulting from transverse waves that were generated by the acoustic excitation energy.

摘要翻译： 横波测井工具由安装在圆柱形心轴周围的多组换能器组成。 传感器有源面的特征在于两个正交尺寸，其中一个尺寸相对于施加到发射器换能器的声学激发能量和横波形成速度是半波长长度。 接收器换能器检测由声激发能产生的横波产生的转换压缩波。

公开(公告)号：US4809237A

公开(公告)日：1989-02-28

申请号：US103459

申请日：1987-10-01

申请人： Charles B. Vogel ,  Mike Davis ,  James O. Guy ,  John R. E. Smith

发明人： Charles B. Vogel ,  Mike Davis ,  James O. Guy ,  John R. E. Smith

IPC分类号： E21B47/00 ,  G01V1/28 ,  G01V1/46 ,  G01V1/40

CPC分类号： G01V1/286 ,  E21B47/0005 ,  G01V1/46

摘要： A method for monitoring the relative goodness of a cement bond to a borehole casing by observing the relative change in amplitude of a converted-compressional wave as a function of depth in the borehole.

摘要翻译： 通过观察作为井眼深度的函数的转换压缩波的振幅的相对变化来监测与钻孔套管的粘结剂粘结相对性的方法。

公开(公告)号：US4495606A

公开(公告)日：1985-01-22

申请号：US297812

申请日：1981-08-31

申请人： John R. E. Smith

发明人： John R. E. Smith

IPC分类号： E21B47/00 ,  G01V1/44 ,  G01V1/40

CPC分类号： E21B47/0005 ,  G01V1/44

摘要： Method and apparatus are provided for measuring acoustic signals having amplitudes of widely varying magnitude during one traversal of the borehole corresponding to indications of cement bonding along a casing as well as acoustic travel time through an increment of the formation. Variable attenuators are provided associated with acoustic receivers disposed within the logging sonde wherein attenuation may be automatically adjusted as a function of acoustic transmitter-receiver trigger pulses transmitted downhole, depending upon whether a cement bond or other log of acoustic signal information having a substantially different magnitude is desired.

摘要翻译： 提供了方法和装置，用于测量在钻孔的一次穿过期间具有广泛变化幅度幅度的声信号，其对应于沿着壳体的水泥粘合指示以及通过地层增量的声学行进时间。 提供可变衰减器，其与布置在测井仪器内的声学接收器相关联，其中衰减可以作为根据在井下传输的声发射机 - 接收机触发脉冲的函数而被自动调整，这取决于水泥粘结或具有基本不同大小的声信号信息的其他对数 是希望的。

公开(公告)号：US4541081A

公开(公告)日：1985-09-10

申请号：US352271

申请日：1982-02-25

申请人： John R. E. Smith

发明人： John R. E. Smith

IPC分类号： G01H11/02 ,  G01V1/18 ,  G01V1/40 ,  G01V1/16

CPC分类号： G01V1/186 ,  G01H11/02 ,  Y10S367/912

摘要： An improved transducer for generating and receiving acoustic energy. A transducer core is constructed by bonding together a plurality of concentric cylinders to provide a ferromagnetic core. A magnetic vector is established circumferentially about the core by passing a current through an electrical winding, wound torridially about the core. A pulsed current source connected across the core provides a high-magnitude, short-duration pulse output establishing current flow from one end to the other end of all of the concentric cylinders. Current flow within the magnetic field causes a force vector and magnetic vector creating a pressure wave.

摘要翻译： 用于产生和接收声能的改进的换能器。 换能器芯通过将多个同心圆柱体结合在一起以提供铁磁芯构成。 通过使电流通过电绕组，围绕磁芯周向缠绕，构成磁矢量。 连接在核心上的脉冲电流源提供了高幅度，短持续时间的脉冲输出，建立从所有同心圆筒的一端到另一端的电流。 磁场内的电流引起力矢量和磁矢量产生压力波。

公开(公告)号：US4192380A

公开(公告)日：1980-03-11

申请号：US947680

申请日：1978-10-02

申请人： John R. E. Smith

发明人： John R. E. Smith

IPC分类号： E21B17/10 ,  E21B23/14 ,  E21B47/00

CPC分类号： E21B17/1021 ,  E21B23/14 ,  E21B47/00

摘要： Apparatus for aiding a well logging instrument in traversing highly deviated boreholes including a plurality of extensible arms mounted in the elongated logging instrument, each arm terminating in a pad member which includes a toothed wheel or gear mounted therein but extending outside the pad. When the arms are extended, moving the pad members outward and away from the logging instrument toward the borehole wall, the toothed wheels engage the mud cake or the borehole wall. A motor is effectively connected to the toothed wheels through a plurality of shafts, universal joints and interconnecting gears for rotating the toothed wheels to move the logging instruments up or down the borehole length. By mounting the toothed wheels within the pad members at an angle other than parallel to the axis of the borehole such that an auger-like movement of the logging instrument is produced, the drive force exerted on the logging instrument is amplified.

摘要翻译： 一种用于帮助测井仪器穿过高度偏离的钻孔，包括安装在细长测井仪器中的多个可延伸臂，每个臂终止于垫构件，其包括安装在其中但延伸到垫外部的齿轮或齿轮。 当臂延伸时，将垫构件向外移动并远离测井仪器朝向钻孔壁，齿轮接合泥饼或钻孔壁。 电动机通过多个轴，万向接头和互连齿轮有效地连接到齿轮，用于旋转齿轮以使测井仪器向上或向下移动钻孔长度。 通过以与平行于钻孔的轴线不同的角度将齿轮安装在垫构件内，从而产生测井仪器的螺旋状运动，施加在测井仪器上的驱动力被放大。