Acoustic attenuator, well logging apparatus and method of well logging
    1.
    发明授权
    Acoustic attenuator, well logging apparatus and method of well logging 失效
    声衰减器,测井装置和测井方法

    公开(公告)号:US5510582A

    公开(公告)日:1996-04-23

    申请号:US398979

    申请日:1995-03-06

    IPC分类号: G01V1/52 G10K11/16 G01V1/40

    摘要: Disclosed is a sonic well tool for performing acoustic investigations of subsurface geological formations penetrated by a borehole. The well tool generally includes a longitudinally extending body for positioning in said borehole. The tool also includes a transmitter supported by the body for transmitting acoustic energy, and a receiver supported by the body for receiving acoustic energy. Finally, the tool includes an acoustic attenuation section positioned on the body between the transmitter and the receiver. This section includes one or more cavities defined by the body, inertial mass members positioned inside the cavities in a suitable manner to form a gap between the wall of the cavity and the inertial mass members, and an acoustical attenuation fluid in the gap. The method for attenuating sonic waves generally includes transmitting a sonic wave from the transmitter to the tool, passing the sonic wave through the acoustic attenuation section, and receiving attenuated wave at the receivers.

    摘要翻译: 公开了一种用于对钻孔穿透的地下地质构造进行声学研究的声波井工具。 井具通常包括用于定位在所述钻孔中的纵向延伸体。 该工具还包括由身体支撑以发射声能的发射器和由身体支撑以接收声能的接收器。 最后,该工具包括位于发射器和接收器之间的身体上的声衰减部分。 该部分包括由主体限定的一个或多个空腔,惯性质量构件以合适的方式定位在空腔内部,以在腔的壁和惯性质量构件之间形成间隙,以及间隙中的声衰减流体。 用于衰减声波的方法通常包括将声波从发射器发射到工具,使声波通过声衰减部分,并在接收器处接收衰减波。

    Sweep frequency vibrator
    2.
    发明授权
    Sweep frequency vibrator 失效
    扫频振荡器

    公开(公告)号:US5331607A

    公开(公告)日:1994-07-19

    申请号:US23833

    申请日:1993-02-23

    IPC分类号: G01V1/155 H04R23/00

    CPC分类号: G01V1/155

    摘要: A sweep frequency vibrator is set forth. It has an elongate cylindrical housing closed at the top and bottom ends. On the interior, there is a reactionary mass fixed to identical upper and lower piston ends. They are received in seal isolated chambers, one being formed in a moveable plug. The plug is moved to thereby vary the spacing of the chambers. As the frequency is changed, plug is moved to assure sufficient clearance from the excursion of the reactionary mass. Hydraulic oil under pressure is delivered to control valves, one for each piston end. The two control valves and piston ends have very short flow lines. Moreover the excursion permitted for the plug assures operation without bottoming out.

    摘要翻译: 提出了一种扫频振动器。 它具有在顶端和底端封闭的细长圆柱形壳体。 在内部,固定有相同的上下活塞端的反作用物质。 它们被接收在密封隔离室中,一个形成在可移动的塞子中。 移动插头,从而改变腔室的间隔。 随着频率的变化,插头被移动以确保与反作用质量块的偏移有足够的间隙。 压力下的液压油输送到控制阀,每个活塞端一个。 两个控制阀和活塞端都有非常短的流动管线。 此外,插头允许的短途旅行确保操作,而不触底。

    Drill pipe downhole unthreading apparatus
    3.
    发明授权
    Drill pipe downhole unthreading apparatus 失效
    钻杆井下拆线装置

    公开(公告)号:US5024272A

    公开(公告)日:1991-06-18

    申请号:US520324

    申请日:1990-05-07

    IPC分类号: E21B17/02

    CPC分类号: E21B17/021

    摘要: An unthreading apparatus is set forth which includes upper and lower mandrels which thread together at a threaded connection which is made of threads having the same pitch as the pipe making up the drill string. There is an internal stem or shaft passing through the upper and lower mandrels. The shaft is provided with upper and lower cylinders, thereby enabling fluid under pressure to be introduced into the cylinders to drive the shaft to and fro. Through a ratchet type mechanism, shaft movement is converted into an unthreading motion for the two mandrels and they unthread, coupling unthreading action to the pin and box at a threaded joint in the drill string above the sticking point of the drill string. This enables the present apparatus to unthread at a particular location because it is locked at that location to straddle a particular threaded joint.

    摘要翻译: 提出了一种包括上部和下部心轴的上部和下部心轴,所述上部和下部心轴以螺纹连接在一起,所述螺纹连接由螺纹形成,该螺纹具有与构成钻柱的管相同的间距。 内部的杆或轴通过上下心轴。 轴设置有上下缸,从而使压力下的流体能够被引入缸中以驱动轴的来回。 通过棘轮式机构,轴运动被转换为两个心轴的非螺纹运动,并且它们在钻柱的钻头柱的上方的钻柱中的螺纹接头处将螺纹连接到销和箱上,从而将螺纹切断。 这使得本装置能够在特定位置上脱开,因为它被锁定在该位置以跨越特定的螺纹接头。

    LUBRICATION APPARATUS FOR WEAPONS
    4.
    发明申请
    LUBRICATION APPARATUS FOR WEAPONS 审中-公开
    武器润滑装置

    公开(公告)号:US20160146562A1

    公开(公告)日:2016-05-26

    申请号:US14951054

    申请日:2015-11-24

    IPC分类号: F41A29/04

    CPC分类号: F41A29/04

    摘要: A weapon lubrication apparatus has a body with an oil reservoir therein. A bent outlet tube has a first end and a second end, with the first coupled to the body at an oil outlet. The outlet tube and the oil outlet have an oil passage therein. A first one way valve is located in the oil passage. The first one way valve allows oil to leave the oil reservoir and enter the outlet tube. The outlet tube is rotatable relative to the body. A nozzle is rotatably coupled to the outlet tube second end and has an opening in a side wall. A plunger is located in the oil reservoir an is movable between in and out positions. The plunger has a handle located exteriorly of the body. The plunger is biased in the out position. A clamp is coupled to the body and is structured to mount the body to the weapon.

    摘要翻译: 武器润滑装置具有其中具有储油器的主体。 弯曲的出口管具有第一端和第二端,其中第一端和第二端在油出口处联接到主体。 出口管和出油口在其中具有油通道。 第一单向阀位于油通道中。 第一个单向阀允许油离开油箱并进入出口管。 出口管可相对于主体旋转。 喷嘴可旋转地联接到出口管第二端并且在侧壁中具有开口。 柱塞位于储油器中,可在进出位置之间移动。 柱塞具有位于主体外部的把手。 柱塞被偏置在向外的位置。 夹具联接到身体并被构造成将身体安装到武器上。

    Apparatus and method for determining the gravitational orientation of a
well logging instrument
    5.
    发明授权
    Apparatus and method for determining the gravitational orientation of a well logging instrument 失效
    用于确定测井仪器重力取向的装置和方法

    公开(公告)号:US5606124A

    公开(公告)日:1997-02-25

    申请号:US655304

    申请日:1996-05-20

    IPC分类号: E21B47/022 E21B47/00

    CPC分类号: E21B47/022

    摘要: A method for determining orientation of an instrument with respect to earth's gravity. The method includes measuring components of earth's gravity along mutually orthogonal axes. One of the axes is substantially parallel to an axis of the instrument. Tilt of the instrument along two orthogonal axes is measured. One of the tilt axes is substantially parallel to the instrument axis. The instrument is rotated about its axis, and biases of the sensors used to measure the components of earth's gravity perpendicular to the instrument axis are calculated by averaging measurements made by these sensors during rotation. The ratio of gains of these sensors is determined from the range of amplitudes of the output of these sensors during rotation. A roll angle is determined from the bias corrected measurements of components of the earth's gravity perpendicular to the axis. The tilt measurement with respect to the two orthogonal axes is then calibrated by using the calculated roll angle. Gain and offset calibration of all the sensors used to measure the components of the earth's gravity is performed using the calibrated tilt measurements and the orientation is calculated from the gravity measurements after correction for gain and offset of the sensors.

    摘要翻译: 一种用于确定仪器相对于地球重力的方向的方法。 该方法包括沿相互正交的轴测量地球重力的分量。 其中一个轴基本上平行于仪器的轴线。 测量沿着两个正交轴的仪器倾斜。 倾斜轴之一基本上平行于仪器轴。 仪器围绕其轴线旋转,用于测量垂直于仪器轴的地球重力分量的传感器的偏差通过在旋转期间对这些传感器进行的测量进行平均来计算。 这些传感器的增益比由旋转期间这些传感器的输出振幅的范围确定。 从垂直于轴的地球重力的分量的偏置校正测量确定滚转角度。 然后通过使用计算的滚动角来校准相对于两个正交轴的倾斜测量。 用于测量地球重力组分的所有传感器的增益和偏移校准是使用校准的倾斜测量进行的,并且根据传感器增益和偏移校正后的重力测量计算取向。

    Wireline tool cable head overload apparatus
    6.
    发明授权
    Wireline tool cable head overload apparatus 失效
    电缆工具电缆头过载装置

    公开(公告)号:US4928764A

    公开(公告)日:1990-05-29

    申请号:US409897

    申请日:1989-09-20

    摘要: A logging tool cable head for supporting the sonde on a cable is disclosed. It has an upper end which affixes to the cable and a lower end affixed to the sonde. The lower end supports an inwardly directed electrical grounding contact. The upper end supports a rotatable, indexed cam having facing upper and lower shoulders sized and located to bear against the contact, so that electrical contact is indicated on overloading. Indexing of the shoulders relative to the contact is achieved. There is also an adjustable centering spring system which locates the contact relative to the two shoulders.

    摘要翻译: 公开了一种用于在电缆上支撑探头的测井工具电缆头。 它有一个上端固定在电缆上,下端固定在探头上。 下端支撑向内定向的电接地触点。 上端支撑可旋转的分度凸轮,其具有面向上和下肩部的尺寸和位置以抵靠接触件,从而在超载时指示电接触。 实现肩部相对于接触的索引。 还有一个可调的定中心弹簧系统,它相对于两个肩膀定位触点。

    Inflatable packer with prestressed bladder
    7.
    发明授权
    Inflatable packer with prestressed bladder 有权
    具有预应力膀胱的充气包装机

    公开(公告)号:US06752205B2

    公开(公告)日:2004-06-22

    申请号:US10124662

    申请日:2002-04-17

    IPC分类号: E21B33127

    CPC分类号: E21B33/127

    摘要: An improved inflatable packer 10 is provided having a pre-stretched bladder to minimize Z-folding. An expandable outer body 11 includes an inner elastomeric bladder layer 12, a reinforcement layer 14 which may include overlapping slats or cable, and an outer elastomer cover layer 16 which may cover only a portion of the reinforcement layer 14. The bladder 12 may expand non-uniformly due to the variations in the cross-section of the borehole 20, irregularities in construction of the bladder 12, and/or difference in resistance to expansion between the covered portion and the exposed portion of the reinforcement layer 14. An improved inflatable packer and method comprises pre-stretching the bladder 12 to keep the bladder in tension and minimize the occurrence of Z-folds.

    摘要翻译: 提供了一种改进的充气封隔器10,其具有预拉伸的囊以最小化Z-折叠。 可膨胀的外体11包括内部弹性体囊层12,可以包括重叠板条或电缆的加强层14以及可仅覆盖加强层14的一部分的外部弹性体覆盖层16.膀胱12可以膨胀, - 由于钻孔20的横截面的变化,气囊12的结构的不规则性和/或被覆部分和加强层14的暴露部分之间的膨胀阻力的差异,是均匀的。改进的充气封隔器 并且方法包括预拉伸膀胱12以保持膀胱张力并使Z折叠的发生最小化。

    Displacement amplified acoustic transmitter
    9.
    发明授权
    Displacement amplified acoustic transmitter 失效
    位移放大声发射机

    公开(公告)号:US5313025A

    公开(公告)日:1994-05-17

    申请号:US57605

    申请日:1993-05-05

    IPC分类号: G01V1/135 G01V1/143 G01V1/40

    CPC分类号: G01V1/135 Y10S367/912

    摘要: This disclosure is directed to a displacement amplifier for forming acoustic pulses and more particularly to one which incorporates a flexible movable lightweight diaphragm of rectangular configuration. It has upper and lower ends which are connected to opposing piston rods driven by duplicate pistons and double acting cylinders. The cylinders are located at opposite ends of the diaphragm or membrane. They are supported in an elongate tool which positions the flexible membrane in a generally rectangular window. This enables the membrane to flex as the pistons are driven, thereby enabling the flexure of the membrane to form dipole source for radially directed compression waves transmitted from the membrane in the window.

    摘要翻译: 本公开涉及用于形成声脉冲的位移放大器,更具体地涉及包括矩形构造的柔性可移动轻量级隔膜的位移放大器。 它具有连接到由重复活塞和双作用气缸驱动的相对活塞杆的上端和下端。 气缸位于隔膜或隔膜的相对端。 它们被支撑在细长工具中,该工具将柔性膜定位在大致矩形的窗口中。 这使得膜能够在活塞被驱动时弯曲,从而能够使膜的挠曲形成用于从窗口中的膜传输的径向压缩波的偶极源。