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21. 发明授权

US09568410B2 Apparatus and methods of determining fluid viscosity 有权
标题翻译：测定流体粘度的仪器和方法
公开(公告)号：US09568410B2
公开(公告)日：2017-02-14
申请号：US13637256
申请日：2010-03-29
申请人： Li Gao , Michael T. Pelletier , Bob Engelman
发明人： Li Gao , Michael T. Pelletier , Bob Engelman
IPC分类号： G01N11/16 , E21B49/08 , G01N9/00
CPC分类号： G01N11/16 , E21B2049/085 , G01N9/002
摘要： Various embodiments include apparatus and methods of determining the viscosity of a fluid downhole in a well. A parameter of a response signal, obtained from driving a tube containing a fluid with an excitation signal for vibrating the tube, can be collected while maintaining the tube in a vibrating mode. The parameter can be evaluated to measure the viscosity of the fluid. In various embodiments, the fluid viscosity may be measured in-situ downhole in the well.
摘要翻译：各种实施方案包括确定井中井下液体的粘度的装置和方法。可以在将管保持在振动模式的同时收集响应信号的参数，该响应信号由驱动含有用于振动管的激励信号的流体的管获得。可以评估该参数以测量流体的粘度。在各种实施例中，流体粘度可以在井中原位测量。

22. 发明授权

US09297255B2 Non-invasive compressibility and in situ density testing of a fluid sample in a sealed chamber 有权
标题翻译：在密封室中的流体样品的非侵入性压缩性和原位密度测试
公开(公告)号：US09297255B2
公开(公告)日：2016-03-29
申请号：US13389583
申请日：2010-06-17
申请人： Li Gao , Mark A. Proett , Sami Eyuboglu , Tony Herman van Zuilekom
发明人： Li Gao , Mark A. Proett , Sami Eyuboglu , Tony Herman van Zuilekom
IPC分类号： G01N9/04 , G01N33/28 , E21B49/08
CPC分类号： E21B49/08 , E21B49/081 , E21B2049/085 , G01N9/00 , G01N9/04 , G01N33/2823
摘要： In situ density and compressibility of a fluid sample are determined for a fluid sample collected downhole. The density and compressibility of the fluid sample is determined by measuring a distance to a piston contained within the sample chamber using an external magnetic field sensor that senses a magnetic field emanating from a magnetic provided on the piston internal to the sample chamber. The testing is performed quickly and at the surface in a noninvasive fashion (i.e., without opening the sample chamber).
摘要翻译：对于在井下收集的流体样品，确定流体样品的原位密度和压缩性。通过使用外部磁场传感器来测量包含在样品室内的活塞的距离来确定流体样品的密度和压缩性，外部磁场传感器感测从设置在样品室内部的活塞上的磁场发出的磁场。快速地进行测试，并以无创的方式（即，不打开样品室）在表面进行测试。

23. 发明申请

US20150192773A1 VARIABLE MODULATION OF RADIATION AND COMPONENTS 有权
标题翻译：辐射和组件的可变调制
公开(公告)号：US20150192773A1
公开(公告)日：2015-07-09
申请号：US14420178
申请日：2012-08-07
申请人： David L. Perkins , Christopher Michael Jones , Michael T. Pelletier , Li Gao , Robert Atkinson , William Soltman
发明人： David L. Perkins , Christopher Michael Jones , Michael T. Pelletier , Li Gao , Robert Atkinson , William Soltman
IPC分类号： G02B26/04 , G01V8/10 , E21B47/00
CPC分类号： G02B26/04 , E21B47/00 , G01J1/0228 , G01J1/0295 , G01J1/0444 , G01J1/0492 , G01J1/20 , G01J1/22 , G01J1/28 , G01J1/42 , G01J1/46 , G01J3/0235 , G01J3/027 , G01J3/0297 , G01V8/10
摘要： Various embodiments include systems and methods to provide selectable variable gain to signals in measurements using incident radiation. The selectable variable gain may be used to normalize signals modulated in measurements using incident radiation. The selectable variable gain may be attained using a number of different techniques or various combinations of these techniques. These techniques may include modulating a modulator having modulating elements in which at least one modulating element acts on incident radiation differently from another modulating element of the modulator, modulating the use of electronic components in electronic circuitry of a detector, modulating a source of radiation or combinations thereof. Additional apparatus, systems, and methods are disclosed.
摘要翻译：各种实施例包括为使用入射辐射的测量中的信号提供可选择的可变增益的系统和方法。可选择的可变增益可用于使用入射辐射对在测量中调制的信号进行归一化。可选择的可变增益可以使用许多不同的技术或这些技术的各种组合来实现。这些技术可以包括调制具有调制元件的调制元件，其中至少一个调制元件作用于与调制器的另一个调制元件不同的入射辐射，调制在检测器的电子电路中使用电子元件，调制辐射源或组合其中。公开了附加装置，系统和方法。

24. 发明申请

US20150184510A1 Apparatus and Method for Downhole In-Situ Determaination of Fluid Viscosity 审中-公开
标题翻译：井下现场流体粘度测定装置及方法
公开(公告)号：US20150184510A1
公开(公告)日：2015-07-02
申请号：US14419435
申请日：2012-08-31
申请人： Li Gao , Wei Zhang , Michael T. Pelletier , Christopher Michael Jones , Dingding Chen , David Earl Ball
发明人： Li Gao , Wei Zhang , Michael T. Pelletier , Christopher Michael Jones , Dingding Chen , David Earl Ball
IPC分类号： E21B49/08 , G01N27/74
CPC分类号： E21B49/08 , E21B47/10 , G01N11/14 , G01N27/74 , G01N2011/147
摘要： An apparatus to determine fluid viscosities downhole in real-time includes a housing and an excitation element positioned therein. Electrical circuitry provides a drive signal that excites movement of the excitation element. A detector produces a response signal correlating to the detected rotational or oscillating movement of the excitation element. Circuitry onboard the apparatus utilizes the drive and response signals to determine the fluid viscosity.
摘要翻译：实时测定井下流体粘度的装置包括壳体和定位在其中的激励元件。电路提供激励激发元件运动的驱动信号。检测器产生与检测到的激励元件的旋转或振荡运动相关的响应信号。设备上的电路利用驱动和响应信号来确定流体粘度。

25. 发明申请

US20150070000A1 SINGLE MAGNET FLUID DENSITOMETER 有权
标题翻译：单磁流体密度计
公开(公告)号：US20150070000A1
公开(公告)日：2015-03-12
申请号：US14391612
申请日：2012-05-03
申请人： Li Gao , Michael T. Pelletier , Mark A. Proett
发明人： Li Gao , Michael T. Pelletier , Mark A. Proett
IPC分类号： G01N27/74 , E21B49/08
CPC分类号： G01N27/74 , E21B47/06 , E21B47/102 , E21B49/00 , E21B49/08 , E21B2049/085 , G01N9/002 , G01N11/16 , G01N33/2823 , G01N2009/006
摘要： An instrument for determining fluid properties is provided. The instrument (300) includes a tube (304) receiving the fluid, a single magnet (302) attached to the tube, and a single coil (306) wound around the single magnet. The single coil is coupled to a pulse current source (312) and receives a pulse current that creates a magnetic field in the single coil, the created magnetic field interacting with the single magnet to drive the tube to vibrate. The instrument further includes a detector (306) coupled to the tube, wherein the detector is coupled to measurement circuitry (310) and detects properties of the tube as it vibrates, and the measurement circuitry determines the fluid properties based on the detected properties. The instrument also includes a housing (314) enclosing the tube, the single magnet, and the single coil wound around the single magnet.
摘要翻译：提供了一种用于确定流体特性的仪器。仪器（300）包括容纳流体的管（304），附接到管的单个磁体（302）和缠绕在单个磁体上的单个线圈（306）。单个线圈耦合到脉冲电流源（312）并且接收在单个线圈中产生磁场的脉冲电流，所产生的磁场与单个磁体相互作用以驱动管子振动。仪器还包括耦合到管的检测器（306），其中检测器耦合到测量电路（310）并且在其振动时检测管的特性，并且测量电路基于检测到的属性来确定流体特性。仪器还包括围绕单个磁体缠绕管，单个磁体和单个线圈的壳体（314）。

26. 发明授权

US08599312B2 Digital signal processor (DSP) architecture for a hybrid television tuner 有权
公开(公告)号：US08599312B2
公开(公告)日：2013-12-03
申请号：US12603877
申请日：2009-10-22
申请人： Alan Hendrickson , David Trager , Mitch Reid , Li Gao , John Khoury
发明人： Alan Hendrickson , David Trager , Mitch Reid , Li Gao , John Khoury
IPC分类号： H04N3/27
CPC分类号： H04N5/46 , H03J1/0008 , H04N5/455 , H04N5/50 , H04N21/4263
摘要： According to one aspect, a mixed-signal tuner for analog and digital TV reception incorporates a demodulator for analog TV, employing various features for resolving limitations of the analog circuitry and for achieving compatibility with various global TV standards. Such features, which may be present in one or more embodiments, include the use of a variable sample rate in all digital clocks for frequency planning, and use of a microcontroller (MCU) to control various circuitry of the tuner.

27. 发明申请

US20110050998A1 Digital Phase Lock Loop Configurable As A Frequency Estimator 有权
标题翻译：数字锁相环可作为频率估计器配置
公开(公告)号：US20110050998A1
公开(公告)日：2011-03-03
申请号：US12551146
申请日：2009-08-31
申请人： Li Gao , Alan Hendrickson
发明人： Li Gao , Alan Hendrickson
IPC分类号： H03L7/06 , H04N5/50
CPC分类号： H04N5/50 , H03L7/0805 , H03L7/1075 , H03L2207/50 , H04N21/4382 , H04N21/4383
摘要： In various implementations, a re-configurable phase lock loop may have multiple signal paths, including a feedforward path to operate in a carrier frequency acquisition mode to obtain a carrier frequency estimate and a feedback loop path to operate in a carrier frequency tracking mode to translate an incoming signal to a baseband signal. The multiple signal paths may share most of the hardware to reduce implementation cost.
摘要翻译：在各种实施方案中，可重配置的锁相环可以具有多个信号路径，包括以载波频率获取模式操作以获得载波频率估计的前馈路径和以载波频率跟踪模式操作的反馈环路径到基带信号的输入信号。多个信号路径可以共享大多数硬件以降低实施成本。

28. 发明申请

US20100328536A1 Digital Signal Processor (DSP) Architecture For A Hybrid Television Tuner 有权
标题翻译：混合电视调谐器的数字信号处理器（DSP）架构
公开(公告)号：US20100328536A1
公开(公告)日：2010-12-30
申请号：US12493955
申请日：2009-06-29
申请人： Alan Hendrickson , David Trager , Mitch Reid , Li Gao , John Khoury
发明人： Alan Hendrickson , David Trager , Mitch Reid , Li Gao , John Khoury
IPC分类号： H04N5/00 , H04N5/50 , H04N5/455
CPC分类号： H04N5/46 , H03J1/0008 , H04N5/455 , H04N5/50 , H04N21/4263
摘要： According to one aspect, a mixed-signal tuner for analog and digital TV reception incorporates a demodulator for analog TV, employing various features for resolving limitations of the analog circuitry and for achieving compatibility with various global TV standards. Such features, which may be present in one or more embodiments, include the use of a variable sample rate in all digital clocks for frequency planning, and use of a microcontroller (MCU) to control various circuitry of the tuner.
摘要翻译：根据一个方面，用于模拟和数字电视接收的混合信号调谐器包括用于模拟电视的解调器，其采用各种特征来解决模拟电路的限制并实现与各种全球电视标准的兼容性。可以存在于一个或多个实施例中的这些特征包括在用于频率规划的所有数字时钟中使用可变采样率，以及使用微控制器（MCU）来控制调谐器的各种电路。

29. 发明授权

US07579343B2 Pyrrolo-thiazines and processes for the preparation and use thereof 失效
标题翻译：吡咯并噻嗪类及其制备方法及用途
公开(公告)号：US07579343B2
公开(公告)日：2009-08-25
申请号：US11516317
申请日：2006-09-06
申请人： Rawle Hollingsworth , Li Gao
发明人： Rawle Hollingsworth , Li Gao
IPC分类号： C07D513/04 , C07D513/14 , A61K31/542
CPC分类号： C07D513/04
摘要： 1H-Pyrrolo-1,4-thiazines and a process for the preparation thereof are described. These compounds are useful as enzyme inhibitors in cells, particularly for medical uses.
摘要翻译：描述了1H-吡咯并-1,4-噻嗪及其制备方法。这些化合物可用作细胞中的酶抑制剂，特别是用于医疗用途。

30. 发明授权

US07219748B2 Downhole signal source 有权
公开(公告)号：US07219748B2
公开(公告)日：2007-05-22
申请号：US10856439
申请日：2004-05-28
申请人： Li Gao , Paul F. Rodney
发明人： Li Gao , Paul F. Rodney
IPC分类号： G01V3/08 , E21B47/12
CPC分类号： G01V11/002
摘要： A signaling apparatus comprises a magnet and a shield moveable relative to the magnet. The shield is moveable relative to the magnet between a first position in which the magnet is relatively exposed and a second position in which the magnet is relatively shielded. The apparatus can include a synchronization signal source, a downhole sensor signal source, and/or means for modulating the magnetic field in response to the signal from any source. A method of using the signaling apparatus to locate a bottomhole assembly includes moving the shield so as to modulate the magnetic field created by the magnet, sensing the modulation of the magnetic field, and determining the location of the bottomhole assembly using the information collected. The BHA can be located using phase shift or amplitude measurements. Receivers detecting the modulated magnetic field can be at or below the earth's surface.

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