Acoustic isolator downhole applications
    1.
    发明授权
    Acoustic isolator downhole applications 有权
    隔声器井下应用

    公开(公告)号:US07032707B2

    公开(公告)日:2006-04-25

    申请号:US10610940

    申请日:2003-07-01

    IPC分类号: G01V1/40 G01V1/44

    CPC分类号: G01V1/523

    摘要: A plurality of heavy mass irregularities attached to an inner wall of the drill collar attenuate waves traveling through the collar. The plurality of heavy mass irregularities are spaced and sized for the maximum attenuation of acoustic pulses in a predetermined frequency range. The mass irregularities may be rings secured to the inner surface of the collar by neck pieces, extending outwardly from the outer circumference of the ring. The mass irregularities may be made of steel or tungsten and are between six and ten in number. The spacing of the irregularities may lie between twelve and fourteen centimeters. A center pipe may be included to isolate the irregularities from the fluid flow associated with the drilling operation. The pipe may be of a soft material such as rubber to reduce transfer of acoustic noise along the drill string. The irregularities may be in an oil based fluid with the pipe fitting closely in the center of the rings. In another embodiment of the invention, each of the mass irregularities is attached to the drill collar over substantially the entire length of the mass irregularity, enabling the attenuation of high frequencies. In yet another embodiment of the invention, the attenuator comprises a substantially cylindrical body with a plurality of recesses on the inside and/or outside of the cylindrica body, with the length of the recesses selected to provide attenuation within a specified band. In another embodiment of the invention, the attenuator comprises a plurality of sections each having an inner diameter and an outer diameter, each section acting like a waveguide with an associated passband and reject-band.

    摘要翻译: 附接到钻铤的内壁的多个重质量不规则物减弱了穿过套环的波浪。 多个重质量不规则部分被间隔开并确定尺寸,用于预定频率范围内的声脉冲的最大衰减。 质量凹凸可以是通过颈部从环的外圆周向外延伸的固定到套环内表面的环。 质量不匀度可以由钢或钨制成,数量在六到十之间。 不规则的间距可以在十二到十四厘米之间。 可以包括中心管以将不规则物与与钻井操作相关联的流体流动隔离。 管道可以是诸如橡胶的软材料,以减少沿着钻柱的声学噪声传递。 不规则形状可以在油基流体中,管道紧密配合在环的中心。 在本发明的另一个实施例中,每个质量不规则物在质量不规则的基本上整个长度上附接到钻铤,使得能够衰减高频。 在本发明的另一个实施例中,衰减器包括在圆柱体的内部和/或外部具有多个凹槽的基本上圆柱形的主体,其中凹部的长度被选择以在特定的带内提供衰减。 在本发明的另一个实施例中,衰减器包括多个部分,每个部分具有内径和外径,每个部分的作用类似于具有相关联的通带和拒绝带的波导。

    Acoustic isolator for downhole applications
    2.
    发明申请

    公开(公告)号:US20060260864A1

    公开(公告)日:2006-11-23

    申请号:US11410637

    申请日:2006-04-25

    IPC分类号: G01V1/40

    CPC分类号: G01V1/523

    摘要: A plurality of heavy mass irregularities attached to an inner wall of the drill collar attenuate waves traveling through the collar. The plurality of heavy mass irregularities are spaced and sized for the maximum attenuation of acoustic pulses in a predetermined frequency range. The mass irregularities may be rings secured to the inner surface of the collar by neck pieces, extending outwardly from the outer circumference of the ring. The mass irregularities may be made of steel or tungsten and are between six and ten in number. The spacing of the irregularities may lie between twelve and fourteen centimeters. A center pipe may be included to isolate the irregularities from the fluid flow associated with the drilling operation. The pipe may be of a soft material such as rubber to reduce transfer of acoustic noise along the drill string. The irregularities may be in an oil based fluid with the pipe fitting closely in the center of the rings. In another embodiment of the invention, each of the mass irregularities is attached to the drill collar over substantially the entire length of the mass irregularity, enabling the attenuation of high frequencies. In yet another embodiment of the invention, the attenuator comprises a substantially cylindrical body with a plurality of recesses on the inside and/or outside of the cylindrica body, with the length of the recesses selected to provide attenuation within a specified band. In another embodiment of the invention, the attenuator comprises a plurality of sections each having an inner diameter and an outer diameter, each section acting like a waveguide with an associated passband and reject-band.

    Acoustic isolator for downhole applications
    3.
    发明授权
    Acoustic isolator for downhole applications 有权
    用于井下应用的隔声器

    公开(公告)号:US06615949B1

    公开(公告)日:2003-09-09

    申请号:US09583258

    申请日:2000-05-31

    IPC分类号: G01V140

    CPC分类号: G01V1/523

    摘要: A plurality of heavy mass irregularities attached to an inner wall of the drill collar attenuate waves traveling through the collar. The plurality of heavy mass irregularities are spaced and sized for the maximum attenuation of acoustic pulses in a predetermined frequency range. The mass irregularities may be rings secured to the inner surface of the collar by neck pieces, extending outwardly from the outer circumference of the ring. The mass irregularities may be made of steel or tungsten and are between six and ten in number. The spacing of the irregularities may lie between twelve and fourteen centimeters. A center pipe may be included to isolate the irregularities from the fluid flow associated with the drilling operation. The pipe may be of a soft material such as rubber to reduce transfer of acoustic noise along the drill string. The irregularities may be in an oil based fluid with the pipe fitting closely in the center of the rings. In another embodiment of the invention, each of the mass irregularities is attached to the drill collar over substantially the entire length of the mass irregularity, enabling the attenuation of high frequencies. In yet another embodiment of the invention, the attenuator comprises a substantially cylindrical body with a plurality of recesses on the inside and/or outside of the cylindrica body, with the length of the recesses selected to provide attenuation within a specified band. In another embodiment of the invention, the attenuator comprises a plurality of sections each having an inner diameter and an outer diameter, each section acting like a waveguide with an associated passband and reject-band.

    摘要翻译: 附接到钻铤的内壁的多个重质量不规则物减弱了穿过套环的波浪。 多个重质量不规则部分被间隔开并确定尺寸,用于预定频率范围内的声脉冲的最大衰减。 质量凹凸可以是通过颈部从环的外圆周向外延伸的固定到套环内表面的环。 质量不匀度可以由钢或钨制成,数量在六到十之间。 不规则的间距可以在十二到十四厘米之间。 可以包括中心管以将不规则物与与钻井操作相关联的流体流动隔离。 管道可以是诸如橡胶的软材料,以减少沿着钻柱的声学噪声传递。 不规则形状可以在油基流体中,管道紧密配合在环的中心。 在本发明的另一个实施例中,每个质量不规则物在质量不规则的基本上整个长度上附接到钻铤,使得能够衰减高频。 在本发明的另一个实施例中,衰减器包括在圆柱体的内部和/或外部具有多个凹槽的基本上圆柱形的主体,其中凹部的长度被选择以在特定的带内提供衰减。 在本发明的另一个实施例中,衰减器包括多个部分,每个部分具有内径和外径,每个部分的作用类似于具有相关联的通带和拒绝带的波导。

    Wireless Communication Device Capable of Performing Enhanced Fingerprint Mapping and Location Identification
    4.
    发明申请
    Wireless Communication Device Capable of Performing Enhanced Fingerprint Mapping and Location Identification 有权
    能够执行增强的指纹图和位置识别的无线通信设备

    公开(公告)号:US20130225209A1

    公开(公告)日:2013-08-29

    申请号:US13538780

    申请日:2012-06-29

    IPC分类号: H04W24/00

    CPC分类号: H04W64/00 G01S5/0252

    摘要: A wireless communication device capable of determining its location in an indoor environment is disclosed. In an indoor environment, a wireless communication device may have insufficient access to GNSS satellites or cellular towers to make an accurate determination as to its location. Therefore, the wireless communication device generates a fingerprint map of the environment by estimating its position and scanning multiple positions within the environment for accessible access points and characteristics. The device stores this information in memory, which it can later refer to for determining its current position.

    摘要翻译: 公开了能够确定其在室内环境中的位置的无线通信装置。 在室内环境中,无线通信设备可能不足以接入GNSS卫星或蜂窝塔,以便对其位置做出准确的确定。 因此,无线通信设备通过估计其位置并扫描环境内的可访问接入点和特性的多个位置来生成环境的指纹图。 该设备将该信息存储在存储器中,以后可以参考该信息来确定其当前位置。

    Process for the isolation and purification of zirconium peroxosulfate and uses thereof
    6.
    发明申请
    Process for the isolation and purification of zirconium peroxosulfate and uses thereof 失效
    用于分离和纯化过氧化硫酸锆的方法及其用途

    公开(公告)号:US20050180911A1

    公开(公告)日:2005-08-18

    申请号:US11023157

    申请日:2004-12-27

    摘要: Provided is a process for isolating zirconium peroxosulfate and its use, either as is or to prepare high purity zirconium compounds including powders of zirconium dioxide and stabilized zirconia. The process is based on precipitating a peroxide compound from an acidic peroxide solution of zirconium and provides a simple, economical method for producing the zirconium peroxosulfate powder and its derivatives with degree of zirconium recovery more than 99%. This process further provides an effective method for the separation and purification of zirconium from a variety of elements and/or naturally occurring ores.

    摘要翻译: 提供了一种用于分离过氧化硫酸锆的方法及其用途,或者制备包括二氧化锆和稳定的氧化锆的粉末的高纯度锆化合物。 该方法基于从酸性过氧化锆溶液中沉淀过氧化物,提供了一种制备锆回收率大于99%的过氧化硫酸锆粉末及其衍生物的简单经济的方法。 该方法还提供了用于从各种元素和/或天然存在的矿石中分离和纯化锆的有效方法。

    Radiation hardened latch
    7.
    发明授权
    Radiation hardened latch 有权
    辐射硬化闩锁

    公开(公告)号:US07212056B1

    公开(公告)日:2007-05-01

    申请号:US11248690

    申请日:2005-10-12

    申请人: Vladimir Belov

    发明人: Vladimir Belov

    IPC分类号: H03K3/356

    CPC分类号: H03K3/356173

    摘要: A radiation hardened latch is presented. The radiation hardened latch uses two redundant inverter paths to duplicate an input signal. The duplicated inverter paths are coupled with a radiation hardened inverter that will only produce an inverted signal if both input signals have equivalent voltage levels. The radiation hardened inverter and its output signal produce a radiation hardened node that drives either one of the duplicated inverter paths back to an appropriate voltage level in the event of an SET. Because, the radiation hardened node and duplicated inverter paths are isolated, the latch may be optimized for factors such as signal speed and driving strength. These factors may be optimized without affecting radiation hardness. The radiation hardened latch may also be used to build more complex circuits such as a flip-flop.

    摘要翻译: 提出了辐射硬化的闩锁。 辐射硬化锁存器使用两个冗余反相器路径来复制输入信号。 复制的反相器路径与辐射硬化逆变器耦合,如果两个输入信号具有等效的电压电平,则仅产生反相信号。 辐射硬化逆变器及其输出信号产生辐射硬化节点,其在SET的情况下将复制的反相器路径中的任一个驱动回适当的电压电平。 因为辐射硬化节点和复制的反相器路径是隔离的,因此锁存器可以针对信号速度和驱动强度等因素进行优化。 可以优化这些因素而不影响辐射硬度。 辐射硬化锁存器也可用于构建诸如触发器的更复杂的电路。

    Wireless communication device capable of performing enhanced fingerprint mapping and location identification
    8.
    发明授权
    Wireless communication device capable of performing enhanced fingerprint mapping and location identification 有权
    能够执行增强的指纹映射和位置识别的无线通信设备

    公开(公告)号:US08996037B2

    公开(公告)日:2015-03-31

    申请号:US13538780

    申请日:2012-06-29

    IPC分类号: H04W24/00

    CPC分类号: H04W64/00 G01S5/0252

    摘要: A wireless communication device capable of determining its location in an indoor environment is disclosed. In an indoor environment, a wireless communication device may have insufficient access to GNSS satellites or cellular towers to make an accurate determination as to its location. Therefore, the wireless communication device generates a fingerprint map of the environment by estimating its position and scanning multiple positions within the environment for accessible access points and characteristics. The device stores this information in memory, which it can later refer to for determining its current position.

    摘要翻译: 公开了能够确定其在室内环境中的位置的无线通信装置。 在室内环境中,无线通信设备可能不足以接入GNSS卫星或蜂窝塔,以便对其位置做出准确的确定。 因此,无线通信设备通过估计其位置并扫描环境内的可访问接入点和特性的多个位置来生成环境的指纹图。 该设备将该信息存储在存储器中,以后可以参考该信息来确定其当前位置。

    Wireless Communication Device Capable of Accurately Performing Position Estimations
    9.
    发明申请
    Wireless Communication Device Capable of Accurately Performing Position Estimations 有权
    能够准确执行位置估计的无线通信设备

    公开(公告)号:US20130225208A1

    公开(公告)日:2013-08-29

    申请号:US13538686

    申请日:2012-06-29

    IPC分类号: H04W24/00

    摘要: A wireless communication device capable of more accurately estimating its location in an indoor environment is disclosed. In an indoor environment, the wireless communication device may seek to generate a fingerprint map so as to later identify its location within the environment. However, the map requires the device to at least estimate its current position. Therefore, the device includes one or more sensors to identify each of a bearing and a speed of the device. For example, the speed may be determined based on sensed steps and a stored step length. This information may then be used to estimate the device's location as it moves through the indoor environment.

    摘要翻译: 公开了能够更准确地估计其在室内环境中的位置的无线通信装置。 在室内环境中,无线通信设备可以寻求生成指纹图,以便随后识别其在环境内的位置。 然而,地图要求设备至少估计其当前位置。 因此,该装置包括一个或多个传感器以识别装置的轴承和速度。 例如,可以基于感测的步骤和存储的步长来确定速度。 然后可以使用该信息来估计设备在室内环境中的位置。

    Process for the isolation and purification of zirconium peroxosulfate and uses thereof
    10.
    发明授权
    Process for the isolation and purification of zirconium peroxosulfate and uses thereof 失效
    用于分离和纯化过氧化硫酸锆的方法及其用途

    公开(公告)号:US07147832B2

    公开(公告)日:2006-12-12

    申请号:US11023157

    申请日:2004-12-27

    IPC分类号: C01B15/08 C01B15/04 C01G25/02

    摘要: Provided is a process for isolating zirconium peroxosulfate and its use, either as is or to prepare high purity zirconium compounds including powders of zirconium dioxide and stabilized zirconia. The process is based on precipitating a peroxide compound from an acidic peroxide solution of zirconium and provides a simple, economical method for producing the zirconium peroxosulfate powder and its derivatives with degree of zirconium recovery more than 99%. This process further provides an effective method for the separation and purification of zirconium from a variety of elements and/or naturally occurring ores.

    摘要翻译: 提供了一种用于分离过氧化硫酸锆的方法及其用途,或者制备包括二氧化锆和稳定的氧化锆的粉末的高纯度锆化合物。 该方法基于从酸性过氧化锆溶液中沉淀过氧化物,提供了一种制备锆回收率大于99%的过氧化硫酸锆粉末及其衍生物的简单经济的方法。 该方法还提供了用于从各种元素和/或天然存在的矿石中分离和纯化锆的有效方法。