Free charge carrier diffusion response transducer for sensing gradients
    21.
    发明授权
    Free charge carrier diffusion response transducer for sensing gradients 有权
    用于感应梯度的自由载流子扩散响应传感器

    公开(公告)号:US08681586B2

    公开(公告)日:2014-03-25

    申请号:US13122839

    申请日:2009-10-09

    IPC分类号: G01V1/18 G01H9/00

    摘要: Devices for sensing gradients are constructed from material whose properties change in response to gradients. One embodiment of the device is a transducer (200) for sensing gradients that includes the material (210) and two or more electrodes (240, 270) coupled to the material. In one embodiment, gradients in a surrounding medium (110) modify the energy gap of the material in the transducer (130) producing a diffusion current density (150). The material is configured to connect to a current or voltage measurement device (520, 530, 540) where a measurement is used to determine the gradient in the medium (160). The devices can be used to measure pressure, temperature, and/or other properties. The transducer can be built on the same substrate as complementary circuitry. A transducer made of Indium. Antimonide is used in marine seismology to measure pressure gradients.

    摘要翻译: 用于感测梯度的装置由其特性响应于梯度而变化的材料构成。 该装置的一个实施例是用于感测包括材料(210)和耦合到该材料的两个或多个电极(240,270)的梯度的换能器(200)。 在一个实施例中,周围介质(110)中的梯度修改换能器(130)中的材料的能隙产生扩散电流密度(150)。 该材料被配置为连接到电流或电压测量装置(520,530,540),其中使用测量来确定介质(160)中的梯度。 这些装置可用于测量压力,温度和/或其他性能。 传感器可以构建在与互补电路相同的基板上。 由铟制成的换能器。 锑酸盐用于海洋地震学测量压力梯度。

    METHOD AND DEVICE TO ACQUIRE MARINE SEISMIC DATA
    22.
    发明申请
    METHOD AND DEVICE TO ACQUIRE MARINE SEISMIC DATA 审中-公开
    获取海洋地震数据的方法和设备

    公开(公告)号:US20130322207A1

    公开(公告)日:2013-12-05

    申请号:US13962263

    申请日:2013-08-08

    申请人: CGG Services SA

    发明人: Robert SOUBARAS

    IPC分类号: G01V1/38 G01V1/18 G01V1/16

    摘要: The invention concerns a method to acquire seismic waves by means of a streamer towed by a vessel and comprising a plurality of seismic receivers. The streamer comprises a head portion that is slanted relative to the water surface and a tail portion having at least one section with a different slant.

    摘要翻译: 本发明涉及一种通过由船只牵引并包括多个地震接收器的拖缆获取地震波的方法。 拖缆包括相对于水面倾斜的头部部分和具有至少一个具有不同倾斜部分的尾部。

    Method for separating up and down propagating pressure and vertical velocity fields from pressure and three-axial motion sensors in towed streamers
    23.
    发明申请
    Method for separating up and down propagating pressure and vertical velocity fields from pressure and three-axial motion sensors in towed streamers 有权
    用于分离拖缆中压力和三轴运动传感器上下传播压力和垂直速度场的方法

    公开(公告)号:US20110242937A1

    公开(公告)日:2011-10-06

    申请号:US12798136

    申请日:2010-03-30

    IPC分类号: G01V1/00

    摘要: A measured pressure field, a measured vertical velocity field, and two measured orthogonal horizontal velocity fields are obtained. A programmable computer is used to perform the following. A scaling factor is determined from water acoustic impedance, the measured pressure field, and the horizontal velocity fields. One of the measured pressure field and measured vertical velocity field is combined with one of the measured vertical velocity field scaled by the scaling factor and the measured pressure field scaled by the scaling factor, generating one of up-going and down-going pressure and velocity wavefields.

    摘要翻译: 获得测量的压力场,测量的垂直速度场和两个测量的正交水平速度场。 可编程计算机用于执行以下操作。 缩放系数由水声阻抗,测量压力场和水平速度场确定。 测量的压力场和测量的垂直速度场中的一个与通过缩放因子缩放的测量的垂直速度场和由缩放因子缩放的测量压力场相结合,产生上升和下降的压力和速度之一 波场

    Apparatus and methods for multicomponent marine geophysical data gathering
    25.
    发明申请
    Apparatus and methods for multicomponent marine geophysical data gathering 有权
    多组分海洋地球物理数据采集的装置和方法

    公开(公告)号:US20040042341A1

    公开(公告)日:2004-03-04

    申请号:US10233266

    申请日:2002-08-30

    IPC分类号: G01V001/38

    摘要: In one embodiment the invention comprises a particle velocity sensor that includes a housing with a geophone mounted in the housing. A fluid that substantially surrounds the geophone is included within the housing. The particle velocity sensor has an acoustic impedance within the range of about 750,000 Newton seconds per cubic meter (Ns/m3) to about 3,000,000 Newton seconds per cubic meter (Ns/m3). In another embodiment the invention comprises method of geophysical exploration in which a seismic signal is generated in a body of water and detected with a plurality of co-located particle velocity sensors and pressure gradient sensors positioned within a seismic cable. The output signal of either or both of the particle velocity sensors or the pressure gradient sensors is modified to substantially equalize the output signals from the particle velocity sensors and the pressure gradient sensors. The output signals from particle velocity sensors and pressure gradient sensors are then combined.

    摘要翻译: 在一个实施例中,本发明包括粒子速度传感器,其包括具有安装在壳体中的地震检波器的壳体。 基本上围绕地震检波器的流体包括在壳体内。 粒子速度传感器的声阻抗在每立方米约750,000牛顿秒(Ns / m 3)至约3,000,000牛顿秒/立方米(Ns / m 3)之间。 在另一个实施例中,本发明包括地球物理勘探方法,其中在水体中产生地震信号并且利用位于地震缆索内的多个共同定位的粒子速度传感器和压力梯度传感器进行检测。 粒子速度传感器或压力梯度传感器中的任一个或两者的输出信号被修改为基本上均衡来自粒子速度传感器和压力梯度传感器的输出信号。 然后组合来自粒子速度传感器和压力梯度传感器的输出信号。

    Self-orienting seismic detector
    26.
    发明授权
    Self-orienting seismic detector 失效
    自定向地震探测器

    公开(公告)号:US5384753A

    公开(公告)日:1995-01-24

    申请号:US162484

    申请日:1993-12-03

    申请人: Joe I. Sanders

    发明人: Joe I. Sanders

    IPC分类号: G01V1/18 H04R17/00

    CPC分类号: G01V1/189

    摘要: A self-orienting seismic detector for detecting vertical acceleration regardless of the device's horizontal orientation. The detector comprises a housing fitted with diaphragms capable of generating signals. A mass is internally suspended within the housing between the diaphragms by means of a filament which is connected at each of its ends to one of the diaphragms. Vertical motion of the detector causes internal displacement of the mass within the housing. Motion by the mass within the cylinder is translated by the filament to the diaphragms which generate signals which may then be recorded. The detector may be incorporated within or attached to an undersea cable to form a seismic detection system primarily suitable for placement on an ocean bottom, but which may be employed in a towed array. In a primary embodiment, the detector is sealed from external pressure changes such that the stresses placed upon the detector's diaphragms will be governed by particle acceleration changes rather than pressure changes. In an alternative embodiment, the detector is exposed to external pressure. In this embodiment, the detector acts as a dual sensor-type system, incorporating the data gathering features of both a geophone and a hydrophone.

    摘要翻译: 一种用于检测垂直加速度的自定向地震检测器,无论设备的水平方向如何。 该检测器包括配有能产生信号的膜片的壳体。 通过在其每个端部处连接到其中一个隔膜的灯丝将质量块内部悬挂在隔膜之间的壳体内。 探测器的垂直运动导致物体在壳体内部的位移。 气缸内的质量的运动由灯丝转移到产生可以被记录的信号的膜片。 检测器可以结合在海底电缆内或连接到海底电缆上,以形成主要适合于放置在海洋底部但可以以拖曳的阵列使用的地震检测系统。 在主要实施例中,检测器被密封以防止外部压力变化,使得放置在检测器的隔膜上的应力将受到粒子加速度变化而不是压力变化的控制。 在替代实施例中,检测器暴露于外部压力。 在该实施例中,检测器用作双传感器型系统,其包括地震检波器和水听器的数据收集特征。

    Combination geophone-hydrophone
    27.
    发明授权
    Combination geophone-hydrophone 失效
    组合地震检波器 - 水听器

    公开(公告)号:US4134097A

    公开(公告)日:1979-01-09

    申请号:US806236

    申请日:1977-06-13

    IPC分类号: B06B1/06 G01V1/18 G01V1/40

    CPC分类号: G01V1/189 B06B1/0655

    摘要: A method and apparatus for measuring and identifying up- and down-traveling waves wherein both a velocity-sensitive and pressure-sensitive transducer are disposed at a point below the earth's surface, as for example in a borehole that is refilled. The pressure transducer is designed to provide intimate contact with the formation surrounding the borehole, and in addition, is the electrical equivalent of the velocity transducer.

    摘要翻译: 用于测量和识别上行波和下行波的方法和装置,其中速度敏感和压敏传感器都设置在地球表面下方的点,例如在再填充的钻孔中。 压力传感器被设计成与钻孔周围的地层紧密接触,另外也是速度传感器的电当量。

    STREAMER MANUFACTURING
    28.
    发明申请

    公开(公告)号:US20170371049A1

    公开(公告)日:2017-12-28

    申请号:US15615277

    申请日:2017-06-06

    IPC分类号: G01V1/20 G01V1/18

    摘要: A method of manufacturing a streamer section. The method includes coupling together a plurality of prefabricated harness modules. A harness module includes a plurality of geophysical sensors disposed along a length of the harness module and a sensor node communicatively coupled to the plurality of sensors. A first connector is disposed at a first end of the harness module and a second connector disposed at a second end of the harness module. The first connector is coupled to the sensor node and is configured to couple to a second harness module and receive data from a sensor node in the second harness module. The second connector is coupled to the sensor node and is configured to couple to a third harness module and forward data to a sensor node in the third harness module.

    DOWNHOLE PIEZOELECTRIC ACOUSTIC TRANSDUCER
    29.
    发明申请

    公开(公告)号:US20170269250A1

    公开(公告)日:2017-09-21

    申请号:US15300214

    申请日:2015-11-19

    摘要: A sensor system for use in a wellbore is provided that can include a piezoelectric transducer for transmitting an acoustic wave into a fluid medium positioned in the wellbore by repeatedly bending between two positions in response to an actuation signal. The piezoelectric transducer can include at least four piezoelectric layers stacked on top of one another. Each of the four piezoelectric layers can be coupled to an adjacent layer via a bonding material. Each of the four piezoelectric layers can include a piezoelectric material, a top electrode coupled to a top surface of the piezoelectric material, and a bottom electrode coupled to a bottom surface of the piezoelectric material. The sensor system can also include a hydrophone for detecting a reflection or a refraction of the acoustic wave off an object in the wellbore and transmitting an associated signal to a processing device.