Lightweight inflatable borehole receiver unit for seismic testing
    1.
    发明授权
    Lightweight inflatable borehole receiver unit for seismic testing 失效
    轻型充气钻孔接收单元进行地震测试

    公开(公告)号:US07954595B1

    公开(公告)日:2011-06-07

    申请号:US12644655

    申请日:2009-12-22

    IPC分类号: G01V1/40

    CPC分类号: G01V1/181 Y10S367/912

    摘要: A borehole receiver for seismic testing has a support frame and an inflatable membrane configured to form a single, compact unit. The inflatable membrane has at least one sensor, such as an accelerometer affixed to the membrane. The at least one accelerometer may be adhesively affixed to an interior portion of the membrane with a cyanoacrylate adhesive. A pneumatic inflation system is used to inflate the membrane with pressurized air. In use, the membrane is slipped over the support frame and secured with a pair of O-rings. Once the borehole receiver is properly positioned in the borehole, pressurized air from the pneumatic inflation system inflates the membrane such that the at least one accelerometer achieves intimate coupling with a wall of the borehole to accurately measure dynamic seismic waves.

    摘要翻译: 用于地震测试的钻孔接收器具有构造成形成单个紧凑单元的支撑框架和可充气膜。 可充气膜具有至少一个传感器,例如固定在膜上的加速度计。 可以使用氰基丙烯酸酯粘合剂将至少一个加速计粘合剂粘附到膜的内部部分。 气压充气系统用于用加压空气使膜膨胀。 在使用中,膜被滑过支撑框架并用一对O形环固定。 一旦钻孔接收器正确地定位在钻孔中,来自气动充气系统的加压空气使膜膨胀,使得至少一个加速度计实现与钻孔壁的紧密耦合,以精确地测量动态地震波。

    Electroacoustic transducer with mechanical impedance transformer
    2.
    发明授权
    Electroacoustic transducer with mechanical impedance transformer 失效
    具有机械阻抗变压器的电声换能器

    公开(公告)号:US5635685A

    公开(公告)日:1997-06-03

    申请号:US505163

    申请日:1995-08-10

    摘要: The transducer comprises for example a block (1) of sensitive elements such as piled piezoelectric disks held up by a stud bolt between two ferrules and a shell (8) all in one piece, that is arranged around the piling with a concave central part (8A) extended on either side by a solid cylindrical part (8 B, 8 C). Two sleeves are arranged at the two opposite ends of the transducer and elastic elements (14) for decoupling them in relation to the vibrating block (1) are interposed. A flexible housing (18) can be placed around the shell (8) so as to insulate from the outside environment the inner volume of the transducer that can be filled with a fluid such as oil. Connecting means allow the vibrating block to be connected to an exciting voltage source. The transducer can be used for the emission of vibrations at sea or in wells and notably petroleum or gas wells for example.

    摘要翻译: PCT No.PCT / FR94 / 01436 Sec。 371日期:1995年8月10日 102(e)日期1995年8月10日PCT 1994年12月9日PCT公布。 公开号WO95 / 16211 日期1995年6月15日换能器包括例如一个敏感元件的块(1),例如由双头螺栓在两个套圈之间夹持的堆叠的压电盘和一个整体的壳体(8),其围绕堆叠布置, 一个凹形的中心部分(8A),其在任一侧由实心圆柱形部分(8B,8C)延伸。 在换能器的两个相对端处布置两个套筒,并插入用于相对于振动块(1)去耦的弹性元件(14)。 柔性壳体(18)可以围绕壳体(8)放置,以便与外部环境绝缘,换能器的内部容积可以填充有诸如油的流体。 连接装置允许振动块连接到激励电压源。 传感器可用于在海上或井内,特别是石油或气井的振动排放。

    Method and apparatus for communicating data in a wellbore and for
detecting the influx of gas
    3.
    发明授权
    Method and apparatus for communicating data in a wellbore and for detecting the influx of gas 失效
    用于在井筒中传送数据并用于检测气体的流入的方法和装置

    公开(公告)号:US5592438A

    公开(公告)日:1997-01-07

    申请号:US108958

    申请日:1993-08-18

    摘要: A transducer is described especially for use in providing acoustic transmission in a borehole. The transducer includes a multiple number of magnetic circuit gaps and electrical windings that have been found to provide the power necessary for acoustic operation in a borehole while still meeting the stringent dimensional criteria necessitated by boreholes. Various embodiments conforming to the design are described. Moreover, the invention includes transition and reflector sections, as well as a directional coupler and resonator arrangement particularly adapted for borehole acoustic communication.An acoustic communication system is described especially designed for use in providing acoustic transmission of information in a borehole. The communication system comprises a surface transceiver and at least one downhole transceiver. The surface transceiver operates in conjunction with a host computer that sends commands to the downhole transceiver. Subsequently, the downhole transceiver transmits encoded data from subsurface, borehole sensors to the surface transceiver. The preferred embodiment uses Minimum Shift Keying (MSK) modulation for both transmitting commands to the downhole unit and for transmitting data to the surface transceiver. To facilitate operation of a coherent communication system in the inhospitable environment of a borehole, the acoustic channel is characterized to enable the system to choose the best possible frequency and bandwidth for communication transmission. Additionally, the system achieves synchronous operation by transmitting synchronization signals between the downhole transceiver and the surface transceiver prior to the units exchanging commands and data.

    摘要翻译: 传感器被特别描述用于在井眼中提供声学传播。 换能器包括多个磁路间隙和电绕组,已经发现它们提供了在钻孔中声学操作所必需的功率,同时仍然满足钻孔所需的严格尺寸标准。 描述符合设计的各种实施例。 此外,本发明包括转换和反射器部分,以及特别适用于井眼声通信的定向耦合器和谐振器装置。 描述了特别设计用于在井眼中提供信息的声传播的声学通信系统。 通信系统包括表面收发器和至少一个井下收发器。 地面收发机与向主机发送命令一起工作,向井下收发器发送命令。 随后,井下收发器将地下钻孔传感器的编码数据传输到地面收发器。 优选实施例使用最小移位键控(MSK)调制,用于向井下单元发送命令,并将数据发送到地面收发器。 为了方便在井眼不适宜的环境中的相干通信系统的操作,声通道的特征在于使系统能够选择用于通信传输的最佳可能的频率和带宽。 另外,在单元交换命令和数据之前,系统通过在井下收发器和地面收发器之间传输同步信号来实现同步操作。

    Differential pressure fluid density instrument
    4.
    发明授权
    Differential pressure fluid density instrument 失效
    差压流体密度仪

    公开(公告)号:US5553034A

    公开(公告)日:1996-09-03

    申请号:US597356

    申请日:1996-02-08

    摘要: The present invention is a differential pressure fluid density production logging tool. The tool comprises an elongated housing adapted to traverse a wellbore. The housing has ports in hydraulic communication with the wellbore at spaced apart locations. The tool also comprises a differential pressure transducer having two inputs, a selective valve, and a reference tube filled with a liquid having a known density. The valve is selectively operable to shunt the inputs of the transducer, to connect the reference tube across the inputs of the transducer to calibrate the transducer, and to connect the ports across the inputs of the transducer to enable measurement of the fluids in the wellbore.

    摘要翻译: 本发明是一种差压流体密度生产测井工具。 该工具包括适于穿过井筒的细长壳体。 壳体具有在间隔开的位置处与井筒液压连通的端口。 该工具还包括具有两个输入的差压换能器,一个选择阀,以及填充有已知密度的液体的参考管。 该阀可选择性地操作以分流换能器的输入,以将参考管连接在换能器的输入端上,以校准换能器,并且连接换能器输入端的端口以使得能够测量井眼中的流体。

    Transmitter for sonic logging-while-drilling
    5.
    发明授权
    Transmitter for sonic logging-while-drilling 失效
    发射机用于声波测井同时钻孔

    公开(公告)号:US5387767A

    公开(公告)日:1995-02-07

    申请号:US173323

    申请日:1993-12-23

    IPC分类号: B06B1/06 G01V1/52 G01V1/40

    摘要: A sonic transmitter assembly for use in logging-while-drilling includes stacks of piezoelectric crystals that extend outwardly from a nodal plate member, and a generally tubular assembly that contains such stacks and has end portions that are sealingly mounted in diametrically opposed holes in a pipe member that forms a pan of the drill string. Spring mass isolator systems 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, particularly waves which are asymmetric with respect to the longitudinal axis of the pipe member.

    摘要翻译: 用于钻井同步的声波发射机组件包括从节点板构件向外延伸的压电晶体的堆叠,以及包含这种堆叠的大致管状的组件,并且具有密封地安装在管道的直径相对的孔中的端部 构成钻柱的盘子。 使用弹簧质量隔离器系统来抑制声波向管构件的传递。 平衡的安装力和结构的双边对称性还可以抑制声波向管构件的传播,特别是相对于管构件的纵向轴线不对称的波。

    Downhole hydraulic rotary seismic source
    6.
    发明授权
    Downhole hydraulic rotary seismic source 失效
    井下液压旋转震源

    公开(公告)号:US5285023A

    公开(公告)日:1994-02-08

    申请号:US954831

    申请日:1992-09-29

    IPC分类号: G01V1/153 G01V1/52 G01V1/40

    摘要: The present invention relates to an improved downhole seismic source for the simultaneous generation of elliptically polarized shear wave seismic energy and compression wave seismic energy coupled into a borehole. The source of the present invention is capable of receiving several kilowatts of energy downhole to depths of several thousand feet. An orbital vibrator, energized by a hydraulic power means is disposed within a housing. The orbital vibrator imparts an orbital motion which generates seismic wave energy in the borehole. A cable supports the hydraulic power means and the orbital vibrator at selected positions along the borehole for coupling of the seismic wave energy into the borehole.

    摘要翻译: 本发明涉及用于同时产生耦合到钻孔中的椭圆偏振剪切波地震能量和压缩波地震能量的改进的井下地震源。 本发明的源头能够在数千英尺深度的井下接收几千瓦的能量。 由液压动力装置通电的轨道式振动器设置在壳体内。 轨道振动器发出轨道运动,在井眼中产生地震波能量。 电缆在井眼的选定位置支撑液压动力装置和轨道振动器,用于将地震波能量耦合到钻孔中。

    Telemetry network for downhole multistation seismic recording tools
    7.
    发明授权
    Telemetry network for downhole multistation seismic recording tools 失效
    多功能地震记录工具的电报网络

    公开(公告)号:US5157392A

    公开(公告)日:1992-10-20

    申请号:US590843

    申请日:1990-10-01

    申请人: Mark D. Zimmer

    发明人: Mark D. Zimmer

    IPC分类号: G01V1/42

    CPC分类号: G01V1/42 Y10S367/912

    摘要: A seismic logging system for VSP or cross well data capture set forth. It is comprised of M duplicate recording stations connected serially below a main structure suspended on a logging cable. Each of the recording stations preferably includes orthogonally arranged displacement transducers, and they are in turn connected with suitable amplifiers, filters and converters to form digital words, and the digital words are recorded in organized fashion in a memory. A telemetry unit is connected to that memory for transfer of data. This data transfer takes place over a short distance into the main unit, and the main unit includes a much larger memory for storing and holding data from M recording stations deployed along and there below in the well borehole, and further including telemetry means for transfer of data along the logging cable. The main memory and the main telemetry means operate at different rates and different capacities; each recording station has its own memory and telemetry means to individually form data words which are first stored locally and then transferred to the main memory where upon telemetry along the logging cable subsequently occurs.

    Piezoelectric seismic vibrator with hydraulic amplifier
    8.
    发明授权
    Piezoelectric seismic vibrator with hydraulic amplifier 失效
    带液压放大器的压电式地震振动器

    公开(公告)号:US5115880A

    公开(公告)日:1992-05-26

    申请号:US749058

    申请日:1989-05-08

    IPC分类号: G01V1/02 G01V1/52

    CPC分类号: G01V1/52 G01V1/02 Y10S367/912

    摘要: A piezoelectric seismic vibrator is disclosed which utilizes a hydraulic system to amplify the longitudinal displacement which results from the application of a voltage to a stack of piezoelectric elements. In each disclosed embodiment of the present invention, a stack of piezoelectric elements is mounted so as to bear upon a power piston which in turn acts upon a high bulk modulus substantially incompressible body of fluid, such as mercury. A drive piston is provided having a cross-sectional area which is smaller than the area of the power piston and the pressure within the fluid system acts to amplify the longitudinal displacement of the piezoelectric elements. The movement of the drive piston is then coupled mechanically or fluidically to the earth to generate seismic waves therein. In one depicted embodiment of the present invention each stack of piezoelectric elements is disposed within a fluid filled chamber which is pressurized by means of communication with the borehole fluids.

    摘要翻译: 公开了一种压电式地震振动器,其使用液压系统来放大由压电元件堆叠施加电压而产生的纵向位移。 在本发明的每个公开的实施例中,压电元件的堆叠被安装成承受在动力活塞上,而动力活塞又作用在基本上不可压缩的大体积的诸如汞的流体体之上。 提供的驱动活塞的横截面积小于动力活塞的面积,并且流体系统内的压力用于放大压电元件的纵向位移。 然后驱动活塞的运动机械地或流体地耦合到地球以在其中产生地震波。 在本发明的一个所描绘的实施例中,每个压电元件堆叠设置在通过与钻孔流体的连通而被加压的流体填充室内。

    Downhole hydraulic seismic generator
    9.
    发明授权
    Downhole hydraulic seismic generator 失效
    井下水压地震发生器

    公开(公告)号:US5113966A

    公开(公告)日:1992-05-19

    申请号:US511372

    申请日:1990-04-19

    IPC分类号: G01V1/155

    CPC分类号: G01V1/155 Y10S367/912

    摘要: A downhole hydraulic seismic generator system for transmitting energy wave vibrations into earth strata surrounding a borehole. The system contains an elongated, unitary housing operably connected to a well head aboveground by support and electrical cabling, and contains clamping apparatus for selectively clamping the housing to the walls of the borehole. The system further comprises a hydraulic oscillator containing a double-actuating piston whose movement is controlled by an electro-servovalve regulating a high pressure hydraulic fluid flow into and out of upper and lower chambers surrounding the piston. The spent hydraulic fluid from the hydraulic oscillator is stored and pumped back into the system to provide high pressure fluid for conducting another run at the same, or a different location within the borehole.

    摘要翻译: 井下液压地震发生器系统,用于将能量波振动传递到钻孔周围的地层。 该系统包括细长的整体式壳体,其通过支撑和电缆布置在地面上可操作地连接到井口,并且包含用于将壳体选择性地夹紧到井眼的壁的夹紧装置。 该系统还包括液压振荡器,该液压振荡器包含双驱动活塞,其移动由电动伺服阀控制,该电动伺服阀将高压液压流体流入和流出包围活塞的上部和下部腔室。 来自液压振荡器的废液压流体被储存并泵送回系统中以提供高压流体,用于在钻孔内的相同或不同的位置处进行另一个运行。

    Method and apparatus for seismic exploration of strata surrounding a
borehole
    10.
    发明授权
    Method and apparatus for seismic exploration of strata surrounding a borehole 失效
    钻孔围岩地震勘探方法与装置

    公开(公告)号:US4873675A

    公开(公告)日:1989-10-10

    申请号:US205291

    申请日:1988-06-10

    IPC分类号: G01V1/147 G01V1/42

    摘要: A method and apparatus are disclosed for carrying out the seismic exploration of the strata which surrounds a borehole during the drilling of that borehole. A compressional mode jar mechanism is disposed in a drill string above a drill bit. Sufficient weights to cock and actuate the jar are disposed both below and above the jar mechanism respectively. A telescoping joint above the jar prevents the impact on the drill bit from propagating up the drill string and multiple geophones at the surface are utilized to receive the seismic waves generated by the impact of the drill bit within the borehole. In a preferred mode of the present invention, an additional geophone is disposed within the drill string proximate to the drill bit to detect the "first break" of the impact thus generated.

    摘要翻译: 公开了一种用于在钻孔期间进行围绕钻孔的地层的地震勘探的方法和装置。 在钻头上方的钻柱中设置压缩模式罐机构。 足够的重量来旋转并致动罐子分别设置在罐机构的下方和上方。 罐上方的伸缩接头防止钻头对钻柱的传播,并且表面处的多个地震检波器被用于接收由钻头在钻孔内的冲击产生的地震波。 在本发明的优选模式中,附近的地震检波器设置在靠近钻头的钻柱内,以检测由此产生的冲击的“第一次断裂”。