Multi channel borehole seismic surveying tool
    52.
    发明授权
    Multi channel borehole seismic surveying tool 失效
    多通道井眼地震勘测工具

    公开(公告)号:US4693335A

    公开(公告)日:1987-09-15

    申请号:US800748

    申请日:1985-11-22

    Inventor: Harold A. Almon

    CPC classification number: G01V1/52 G01V1/201 G01V1/523 Y10S367/911

    Abstract: Apparatus for seismic surveying a borehole by simultaneously measuring seismic signals at a plurality of elevations within the borehole. A resilient tubular member is filled with a liquid and the length of the tubular member is divided into several adjacent series arranged chambers. A sensor for receiving the seismic signal is placed within each chamber, and means are provided for measuring and storing the signal received by each of the sensors. The sensors are suspended within the tubular member by a stress member, and the stress member is suspended from a bulkhead which divides the adjacent chambers, and which isolates the chambers one from the other. This arrangement of parts provides a unique structure which enables geologizing a borehole seismically in a new and unobvious manner.

    Abstract translation: 用于通过同时测量井眼内的多个高度处的地震信号来对钻孔进行地震测量的装置。 弹性管状部件填充有液体,并且管状部件的长度被分成几个相邻的串联布置的腔室。 用于接收地震信号的传感器被放置在每个室内,并且提供用于测量和存储由每个传感器接收的信号的装置。 传感器通过应力构件悬挂在管状构件内,并且应力构件从分隔相邻室的隔壁悬挂,并且将室与另一个隔离。 这种部件的布置提供了一种独特的结构,可以以新的和非显而易见的方式地震钻探地质。

    Simultaneous digitizing apparatus for an acoustic tool
    53.
    发明授权
    Simultaneous digitizing apparatus for an acoustic tool 失效
    用于声学工具的同时数字化设备

    公开(公告)号:US4684947A

    公开(公告)日:1987-08-04

    申请号:US869790

    申请日:1986-06-02

    Applicant: Mark D. Zimmer

    Inventor: Mark D. Zimmer

    CPC classification number: G01V11/002 E21B47/12 G01V1/44 Y10S367/911

    Abstract: For use in an acoustic logging tool, an apparatus which digitizes simultaneously obtained acoustic signals is set forth in the preferred and illustrated embodiment. The device cooperates with N acoustic receivers in a sonde. After an acoustic pulse is transmitted, data is observed at all N acoustic receivers. This apparatus comprises a multiplexer which is connected to the several receivers. The several input signals are multiplexed, thereafter input to a digital data converter forming a procession of output digital words, and the words are stored in a selected order in a digital data buffer. They are delivered to the surface through a telemetry transmitter at a slower rate than the rate at which the data is created. In addition, a transmitter monitor is included. This provides a signal alternately digitized for a specified interval to enable coordination of the data reduction from the acoustic receivers in contrast with the timing of the transmitted acoustic pulse.

    Abstract translation: 为了在声学测井工具中使用,在优选和所示实施例中阐述了同时获得的声信号数字化的装置。 该设备与主机中的N个声学接收器协作。 在发送声脉冲之后,在所有N个声学接收器处观察数据。 该装置包括连接到多个接收器的多路复用器。 多个输入信号被多路复用,然后输入到形成输出数字字的行列的数字数据转换器,并且这些字以选定顺序存储在数字数据缓冲器中。 它们通过遥测发射器以比创建数据速率慢的速率传送到地面。 另外还包括发射机监视器。 这提供了交替地数字化指定间隔的信号,以使得能够与发射的声脉冲的定时相对应地从声学接收机的数据缩减协调。

    Method and apparatus for acoustically measuring the transverse
dimensions of a borehole
    54.
    发明授权
    Method and apparatus for acoustically measuring the transverse dimensions of a borehole 失效
    用于声学测量钻孔横向尺寸的方法和装置

    公开(公告)号:US4661933A

    公开(公告)日:1987-04-28

    申请号:US450595

    申请日:1982-12-17

    CPC classification number: G01B17/00 E21B47/082 Y10S367/902 Y10S367/911

    Abstract: An apparatus and method for the measuring the transverse dimensions of a hole such as in an oil well including a sonde on which an electro-acoustic transducer is mounted in an offcentered position in relation to the axis of the sonde. This transducer has two opposite active faces so as to simultaneously transmit acoustic pulses in diametrically opposite diections from the sonde. When the sonde is centered in the hole, the transducer picks up the echoes retransmitted by the wall of the hole in the two directions, at different times. A recording is made of these times and preferably also of an indication of the amplitude of each of these echoes to obtain both a diameter measurement and an indication of the condition of the hole surface. Several transducers are provided, superposed and oriented along various diameters distributed around the axis of the sonde.

    Abstract translation: 一种用于测量孔的横向尺寸的装置和方法,例如在包括探空仪的油井中,其中电声换能器相对于探头的轴线安装在偏心位置。 该换能器具有两个相对的有效面,以便同时在距离探头的径向相对的横截面中传输声波脉冲。 当探头在孔中心时,传感器在不同时间从两个方向拾取由孔壁重发的回波。 由这些时间进行记录,并且优选地也记录这些回波中的每一个的振幅的指示,以获得孔表面的状态的直径测量和指示。 提供了几个传感器,叠加并沿着围绕探头的轴线分布的各种直径定向。

    Device for anchoring a probe in a well, by opening mobile arms
    55.
    发明授权
    Device for anchoring a probe in a well, by opening mobile arms 失效
    通过打开移动臂将探头固定在井中的装置

    公开(公告)号:US4616703A

    公开(公告)日:1986-10-14

    申请号:US625969

    申请日:1984-06-29

    CPC classification number: G01V11/005 E21B23/01 E21B23/04 Y10S367/911

    Abstract: A device for anchoring a probe in a well by opening at least one arm pivotable with respect to the body of the probe by a spring moving a rod in a guide housing of the body and operating arms. In a closed position of the arm, the rod is locked by a bolt and a hydraulic fluid contained in a chamber and maintained at the same pressure as the pressure external to the probe is used for driving the bolt, when the pressure of this fluid is applied thereto intermittently by an electromagnetic valve.

    Abstract translation: 一种用于通过使主体和操作臂的引导壳体中的杆移动的弹簧来打开能够相对于探针主体可枢转的至少一个臂来将探针锚定在井中的装置。 在臂的关闭位置,杆被螺栓锁定,并且包含在腔室中的液压流体被保持在与探针外部的压力相同的压力上,用于驱动螺栓,当该流体的压力为 由电磁阀间歇地施加。

    Logging method and apparatus using a sonde equipped with measuring pads
    56.
    发明授权
    Logging method and apparatus using a sonde equipped with measuring pads 失效
    使用配有测量垫的探头的测井方法和仪器

    公开(公告)号:US4614250A

    公开(公告)日:1986-09-30

    申请号:US415856

    申请日:1982-09-08

    CPC classification number: E21B47/026 E21B17/1021 G01V11/005 Y10S367/911

    Abstract: Dip measurements and investigation of geological formations traversed by a deviated borehole is carried out by means of an apparatus comprising a measuring sonde and a cartridge connected to a cable. The sonde carries four measuring pads regularly distributed by means of articulated arms which keep the pads parallel to the axis of the sonde. The opposite arms are forced to stay symmetrical in relation to the sonde.The sonde is connected to the cartridge so that its axis can depart angularly from the axis of the cartridge, enabling the latter to rest on the borehole wall. The pads have a length smaller than twice the transverse dimension D of the sonde.

    Abstract translation: 由偏心钻孔穿过的地质构造的浸渍测量和调查通过包括测量探头和连接到电缆的盒的装置进行。 探头携带四个测量垫,通过铰接臂规则分布,使垫保持平行于探头的轴线。 相对的手臂相对于探头被迫保持对称。 探头连接到墨盒,使得其轴线可以与墨盒的轴线成角度地离开,使得其能够停留在钻孔壁上。 垫的长度小于探头的横向尺寸D的两倍。

    Slew rate filter for logging cable signal pick-off
    57.
    发明授权
    Slew rate filter for logging cable signal pick-off 失效
    用于记录电缆信号传感器的压摆率滤波器

    公开(公告)号:US4608636A

    公开(公告)日:1986-08-26

    申请号:US582973

    申请日:1984-02-23

    Inventor: Richard A. Beals

    Abstract: A signal amplifier system for use in a downhole logging system wherein a signal transmitter is mounted in a sonde suspended on a logging cable thousands of feet into a borehole. Variable slew rate amplifiers connected to a differential amplifier are set forth. Preferably, programmable amplifiers having a gain determined by a driving current are used. Two such amplifiers are connected to the input signal, and they are driven by different current sources. The output signals are summed at a differential amplifier. Through the use of different slew rates, the incoming signal is amplified by the two programmable amplifiers and the outputs of the two amplifiers are then subtracted from one another. Signals which pass equally through both programmable amplifiers (due to slew rates which do not cause limiting) thus are subtracted from each other. Faster rise time signal pulses are amplified by different gains; the differential of the two amplified signals (having differing gain rates) enables noise reduction at the differential amplifier output. The differential output signal is reduced in noise amplitude.

    Abstract translation: 一种用于井下测井系统的信号放大器系统,其中信号发射器安装在悬挂在测井电缆上的千分之一英尺的探空器中。 介绍了连接到差分放大器的可变转换速率放大器。 优选地,使用具有由驱动电流确定的增益的可编程放大器。 两个这样的放大器连接到输入信号,并且它们由不同的电流源驱动。 输出信号在差分放大器相加。 通过使用不同的转换速率,输入信号由两个可编程放大器放大,然后相互减去两个放大器的输出。 因此,通过两个可编程放大器同样通过的信号(由于不引起限制的压摆率)相互减去。 更快的上升时间信号脉冲由不同的增益放大; 两个放大信号(具有不同的增益率)的差分使差分放大器输出端的噪声降低。 差分输出信号的噪声幅度减小。

    Two-component acoustic borehole tool
    58.
    发明授权
    Two-component acoustic borehole tool 失效
    双组分声孔工具

    公开(公告)号:US4578785A

    公开(公告)日:1986-03-25

    申请号:US501614

    申请日:1983-06-06

    CPC classification number: G01V1/16 E21B23/01 G01V11/005 Y10S367/911

    Abstract: An acoustic borehole tool consists of two components: A first component containing power supplies, signal processing and control electronics and a sidewall locking mechanism. A second component includes a seismic sensor and a clamping device for pressing the sensor against the sidewall of a borehole. The weight of the second component is a small fraction of the weight of the first component so that the force exerted by the clamping device is less than a preselected limiting value and so that the clamping force/mass ratio may reach large value without danger of destroying the borehole.

    Abstract translation: 声孔工具由两部分组成:第一部分包含电源,信号处理和控制电路以及侧壁锁定机构。 第二部件包括地震传感器和用于将传感器压靠在钻孔的侧壁上的夹紧装置。 第二部件的重量是第一部件的重量的一小部分,使得由夹紧装置施加的力小于预选的极限值,并且使得夹紧力/质量比可以达到大的值而不会有破坏的危险 钻孔。

    Method and apparatus for shear wave logging
    60.
    发明授权
    Method and apparatus for shear wave logging 失效
    剪切波测井方法和装置

    公开(公告)号:US4542487A

    公开(公告)日:1985-09-17

    申请号:US440980

    申请日:1982-11-12

    CPC classification number: G01V1/52 Y10S367/911

    Abstract: Apparatus for shear wave logging of formations adjacent a borehole wherein a tubular apparatus is specifically constructed for sympathetic movement with the borehole in response to low frequency horizontal shear waves. The apparatus consists of tubular frame structure with end members including housings for rigid seating of orthogonal pairs of horizontal wave detectors. Outer sleeve structure may be utilized for buoyancy adjustment.

    Abstract translation: 用于对钻孔附近的地层进行剪切波测井的装置,其中管状装置专门构造为响应于低频水平剪切波而与钻孔进行交感运动。 该装置由具有端部构件的管状框架结构组成,包括用于正交对水平波检测器的刚性座的壳体。 外套结构可用于浮力调节。

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