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31. 发明授权

US08193946B2 Training for directional detection 有权
标题翻译：定向检测培训
公开(公告)号：US08193946B2
公开(公告)日：2012-06-05
申请号：US12065529
申请日：2006-11-10
申请人： Sinan Sinanovic , Donald H. Johnson , Wallace R. Gardner , Li Gao , Carl A. Robbins
发明人： Sinan Sinanovic , Donald H. Johnson , Wallace R. Gardner , Li Gao , Carl A. Robbins
IPC分类号： H04H9/00
CPC分类号： E21B47/16
摘要： Acoustic telemetry devices and methods that provide directional detection. In one embodiment, a disclosed acoustic telemetry device comprises at least two acoustic sensors and an electronics module. The electronics module combines the detection signals from the acoustic sensors to obtain a combined signal that substantially excludes signals propagating in a direction opposite to the communication signal. The disclosed systems and methods can be trained in the field and will readily accommodate an irregular and unknown signal transmission medium between the two acoustic sensors.
摘要翻译：声学遥测装置和方法提供方向检测。在一个实施例中，公开的声学遥测装置包括至少两个声学传感器和电子模块。电子模块组合来自声学传感器的检测信号，以获得基本上排除在与通信信号相反的方向传播的信号的组合信号。所公开的系统和方法可以在现场进行训练，并且将容易地适应两个声学传感器之间的不规则和未知的信号传输介质。

32. 发明授权

US07705878B2 Method and apparatus to create a down-hole video log to transmit down-hole video data 有权
标题翻译：用于创建井下视频日志以传输井下视频数据的方法和装置
公开(公告)号：US07705878B2
公开(公告)日：2010-04-27
申请号：US10437498
申请日：2003-05-13
申请人： Batakrishna Mandal , Wallace R. Gardner
发明人： Batakrishna Mandal , Wallace R. Gardner
IPC分类号： H04N9/47 , E21B44/00
CPC分类号： E21B47/0002 , H04N7/183
摘要： A system for obtaining video data is provided, the system comprising a video camera positioned down a bore-hole to obtain a plurality of video frames wherein the plurality of video frames comprises sequential video frames, wherein each of the sequential video frames contains information, and wherein a portion of the information of each of the sequential video frames comprises new information not found on a previous sequential video frame. The system also comprises a data extractor to extract information only from the portion comprising the new information from each sequential video frame.
摘要翻译：提供了一种用于获取视频数据的系统，该系统包括位于钻孔下方的摄像机以获得多个视频帧，其中多个视频帧包括顺序视频帧，其中每个顺序视频帧包含信息，以及其中每个顺序视频帧的信息的一部分包括在先前顺序视频帧上未找到的新信息。该系统还包括数据提取器，仅从包括来自每个顺序视频帧的新信息的部分提取信息。

33. 发明授权

US07443312B2 Downhole telemetry system having discrete multi-tone modulation with QAM fallback 有权
标题翻译：具有QAM回退的离散多音调制的井下遥测系统
公开(公告)号：US07443312B2
公开(公告)日：2008-10-28
申请号：US10863131
申请日：2004-06-08
申请人： Alberto Quintero , Carl Dodge , Homi P. Cooper , Wallace R. Gardner
发明人： Alberto Quintero , Carl Dodge , Homi P. Cooper , Wallace R. Gardner
IPC分类号： G01V3/00
CPC分类号： H04L27/0008 , E21B47/12 , G01V11/002 , H04L1/0003 , H04L25/0202 , H04L25/03006 , H04L27/2601
摘要： Improved communication systems and methods are disclosed. In one embodiment, a downhole communications system comprises a downhole transceiver and a surface transceiver. The surface transceiver receives a discrete multi-tone (DMT) modulated uplink signal from the downhole transceiver, and transmits a downlink signal to the downhole transceiver using a modulation method determined by the transceivers as communications are initiated. The downlink modulation methods supported by the surface transceiver may include DMT modulation and quadrature amplitude modulation (QAM). The modulation mode selection may be based on measured channel characteristics, on proposed data rates, or on other predetermined parameters. The uplink and downlink signals may be communicated over a shared transmission mode on multiconductor cable or wired pipe, and alternatively the uplink and downlink signals may be communicated over separate transmission modes.
摘要翻译：公开了改进的通信系统和方法。在一个实施例中，井下通信系统包括井下收发器和表面收发器。表面收发器从井下收发器接收离散的多音调（DMT）调制上行链路信号，并在通信发起时，使用由收发器确定的调制方法将下行链路信号发送到井下收发信机。由表面收发器支持的下行链路调制方法可以包括DMT调制和正交幅度调制（QAM）。调制模式选择可以基于测量的信道特性，所提出的数据速率或其他预定参数。上行链路和下行链路信号可以在多导体电缆或有线管道上通过共享传输模式进行通信，并且可替代地，上行链路和下行链路信号可以通过分开的传输模式进行通信。

34. 发明授权

US07132958B2 Downhole telemetry system using multiple uplink modes as data channels using discrete multi-tone modulation 有权
标题翻译：使用多个上行链路模式的井下遥测系统作为使用离散多音调制的数据信道
公开(公告)号：US07132958B2
公开(公告)日：2006-11-07
申请号：US10424475
申请日：2003-04-28
申请人： Carl Dodge , Wallace R. Gardner
发明人： Carl Dodge , Wallace R. Gardner
IPC分类号： G01V3/00 , G01V1/18 , H04R17/00 , H04B7/216
CPC分类号： E21B47/12 , G01V11/002
摘要： A method and a downhole telemetry system a downhole telemetry system using discrete multitone modulation for transmitting a data stream over a plurality of transmission modes is provided. The downhole telemetry system includes a downhole transmitter, a cable, and a surface receiver. The downhole transmitter is configured to transmit the data stream over the plurality of transmission modes. The surface receiver is coupled to the downhole transmitter via the cable and is configured to combine signals from each of the plurality of transmission modes to obtain the data stream transmitted by the downhole receiver. The method includes receiving a plurality of signals over the plurality of transmission modes from a downhole package, and may further include combining the plurality of signals to form at least one data stream.
摘要翻译：一种方法和井下遥测系统，提供一种使用离散多音调制的井下遥测系统，用于通过多种传输模式传输数据流。井底遥测系统包括井下发射器，电缆和表面接收器。井下发射器被配置为通过多个传输模式发送数据流。表面接收器经由电缆耦合到井下发射机，并且被配置为组合来自多个传输模式中的每一个的信号以获得由井下接收器发送的数据流。该方法包括从井下包装在多个传输模式上接收多个信号，并且还可以包括组合多个信号以形成至少一个数据流。

35. 发明授权

US07042367B2 Very high data rate telemetry system for use in a wellbore 有权
公开(公告)号：US07042367B2
公开(公告)日：2006-05-09
申请号：US10067126
申请日：2002-02-04
申请人： Wallace R. Gardner , Roger L. Schultz
发明人： Wallace R. Gardner , Roger L. Schultz
IPC分类号： G01V1/00
CPC分类号： E21B47/12 , G01V11/00
摘要： A very high data rate telemetry system is provided for use in a wellbore. In a described embodiment, a telemetry system includes multiple nodes positioned in the wellbore and distributed over a substantial length of the wellbore. The nodes simultaneously communicate with a remote location at a very high combined data transmission rate. A method of communicating data in a wellbore is also provided. The method includes the steps of installing multiple modems in the wellbore, installing a remote modem at a location remote from the downhole modems, and simultaneously communicating data from each of the downhole modems to the remote location. Each downhole modem communicates with the remote modem using a unique set of frequency subchannels.

36. 发明授权

US06657597B2 Directional signal and noise sensors for borehole electromagnetic telemetry system 有权
公开(公告)号：US06657597B2
公开(公告)日：2003-12-02
申请号：US09923205
申请日：2001-08-06
申请人： Paul F. Rodney , Harrison C. Smith , Wallace R. Gardner
发明人： Paul F. Rodney , Harrison C. Smith , Wallace R. Gardner
IPC分类号： G01V100
CPC分类号： G01V11/002 , E21B47/122 , H01Q1/04 , H01Q3/2611
摘要： An electromagnetic borehole telemetry system providing improved signal to noise ratio. Adaptive filters use noise channels as references to remove noise from the signal channel. Directional detectors provide a signal channel with reduced noise content and improved noise channels with reduced signal content. Directional detectors may be magnetometers aligned with the magnetic field, or antennas aligned with the electric field, of signal or noise sources. Alignment may be performed by beam steering of the outputs of a three-channel detector, which may detect both signal and noise.

37. 发明授权

US06172614B2 Method and apparatus for remote actuation of a downhole device using a resonant chamber 失效
标题翻译：使用谐振室远程致动井下装置的方法和装置
公开(公告)号：US06172614B2
公开(公告)日：2001-01-09
申请号：US09114456
申请日：1998-07-13
申请人： Clark Robison , Wallace R. Gardner , John W. Minear
发明人： Clark Robison , Wallace R. Gardner , John W. Minear
IPC分类号： G01V300
CPC分类号： E21B23/06 , E21B47/18 , E21B47/182
摘要： The method of remotely actuating a downhole device provides the initiation of an acoustic signal. The acoustic signal is amplified within a resonance chamber and is transmitted down a fluid column in the tubing string or in the annulus around the tubing string. The signal can be coded to allow activation of multiple downhole devices. The use of a resonance chamber allows for the amplification of the actuation signal to ensure that a downhole receiver can detect it. The receiver can be either a transducer or a hydrophone. The apparatus and method allow for remote actuation without the need for intervention into the well.
摘要翻译：遥控启动井下装置的方法提供了声信号的启动。声信号在共振室内被放大，并且沿着油管柱中的流体柱或在管柱周围的环中向下传播。该信号可被编码以允许激活多个井下装置。使用共振室允许放大致动信号，以确保井下接收器能够检测到它。接收器可以是换能器或水听器。该装置和方法允许远程致动而不需要干涉井。

38. 发明授权

US5490121A Nonlinear equalizer for measurement while drilling telemetry system 失效
标题翻译：非线性均衡器，用于测量钻探遥测系统
公开(公告)号：US5490121A
公开(公告)日：1996-02-06
申请号：US291959
申请日：1994-08-17
申请人： Wallace R. Gardner , G. A. Merchant
发明人： Wallace R. Gardner , G. A. Merchant
IPC分类号： E21B47/18 , H04L25/03 , H04H9/00
CPC分类号： E21B47/18 , H04L25/03057
摘要： A nonlinear equalizer aids in transmitting data with more speed and accuracy by reducing nonlinear signal distortion such as found in a mud transmission channel in an MWD telemetry system. The nonlinear equalizer receives an input signal that is modified by at least one nonlinear function element. The nonlinear equalizer also includes multiple linear equalizers: one such linear equalizer receives the unmodified input signal, and the other linear equalizers receive output signals from the nonlinear function elements. Output signals of the linear equalizers are summed to provide the nonlinear equalizer's output signal.
摘要翻译：非线性均衡器通过减少诸如在MWD遥测系统的泥浆传输通道中发现的非线性信号失真，有助于以更高的速度和精度传输数据。非线性均衡器接收由至少一个非线性函数元素修改的输入信号。非线性均衡器还包括多个线性均衡器：一个这样的线性均衡器接收未修改的输入信号，而另一个线性均衡器从非线性函数元件接收输出信号。将线性均衡器的输出信号求和，以提供非线性均衡器的输出信号。

39. 发明授权

US07061932B2 Code-division multiple-access (CDMA) wireline telemetry system 失效
标题翻译：码分多址（CDMA）有线遥测系统
公开(公告)号：US07061932B2
公开(公告)日：2006-06-13
申请号：US10288970
申请日：2002-11-06
申请人： Wallace R. Gardner , Roger L. Schultz , Beegamudre N. Murali , Manfred G. Prammer
发明人： Wallace R. Gardner , Roger L. Schultz , Beegamudre N. Murali , Manfred G. Prammer
IPC分类号： H04B7/216
CPC分类号： E21B47/122 , H04B1/707
摘要： A downhole telemetry system employing code division multiple access (CDMA) is disclosed. In one embodiment, the downhole telemetry system comprises one or more downhole transmitters and an uphole receiver. Each of the downhole transmitters transmits a corresponding uplink signal which is generated using amplitude modulation of corresponding code word signals. The code word signals are orthogonal to each other, and the transmitters may be configured to adjust the timing to assure synchronous arrival of the various uplink signals at the receiver. Each of the transmitters may be allocated a different number of code words when it is desired to allow for unequal bandwidth requirements. Such allocation is preferably dynamic. Additional modulation techniques may be employed with CDMA, including frequency division multiplexing, time division multiplexing, and frequency re-use. In the preferred embodiment, the uplink signals are transported over a multi-conductor wireline cable, but other physical channels are also contemplated.
摘要翻译：公开了一种采用码分多址（CDMA）的井下遥测系统。在一个实施例中，井下遥测系统包括一个或多个井下发射器和井上接收器。每个井下发射器发射使用对应的码字信号的幅度调制产生的对应的上行链路信号。码字信号彼此正交，并且发射机可以被配置为调整定时以确保各种上行链路信号在接收机处的同步到达。当希望允许不相等的带宽要求时，每个发射机可以被分配不同数量的码字。这种分配优选是动态的。可以使用CDMA的附加调制技术，包括频分复用，时分复用和频率重用。在优选实施例中，上行链路信号通过多导体有线电缆传输，但也可以考虑其它物理信道。

40. 发明授权

US06781521B1 Filters for canceling multiple noise sources in borehole electromagnetic telemetry system 有权
标题翻译：用于消除井眼电磁遥测系统中多种噪声源的滤波器
公开(公告)号：US06781521B1
公开(公告)日：2004-08-24
申请号：US09923185
申请日：2001-08-06
申请人： Wallace R. Gardner , Paul F. Rodney , Harrison C. Smith
发明人： Wallace R. Gardner , Paul F. Rodney , Harrison C. Smith
IPC分类号： H03H730
CPC分类号： G01V11/002 , E21B47/121 , H03H21/0012 , H04B13/02
摘要： An electromagnetic borehole telemetry system providing improved signal to noise ratio. Adaptive filters use noise channels as references to remove noise from the signal channel. Multiple noise channels are coupled to series connected adaptive filters for removing each noise source from the signal channel. The order of noise removal is selected to remove the most significant first.
摘要翻译：提供改善的信噪比的电磁井眼遥测系统。自适应滤波器使用噪声通道作为参考，以消除信号通道中的噪声。多个噪声通道耦合到串联连接的自适应滤波器，用于从信号通道去除每个噪声源。选择噪声去除的顺序去除最重要的第一个。

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