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1. 发明申请

US20070103161A1 Standoff Compensation For Imaging In Oil-Based MUDs 有权
标题翻译：基于油的MUD成像的间歇补偿
公开(公告)号：US20070103161A1
公开(公告)日：2007-05-10
申请号：US11469859
申请日：2006-09-02
申请人： Luis San Martin , Humberto Rosa , Raj Pai , William Schaecher , Myrick Monroe , Marian Morys , Carl Dodge
发明人： Luis San Martin , Humberto Rosa , Raj Pai , William Schaecher , Myrick Monroe , Marian Morys , Carl Dodge
IPC分类号： G01V3/00
CPC分类号： G01V3/24
摘要： Oil-based mud imaging systems and methods having standoff compensation. In some embodiments, disclosed logging systems include a logging tool in communication with surface computing facilities. The logging tool is provided with a sensor array having at least two voltage electrodes positioned between two current electrodes energized by an excitation source to create an oscillatory electric field in a borehole wall. The two current electrodes are each shielded with conductive shields to prevent current leakage into the logging tool body. A common mode voltage is measured, and the phase and amplitude of the excitation source is controlled to reduce the difference between the common mode voltage and reference voltage of a voltage detector. The logging tool is further provided with electronics coupled to the voltage detector and the current electrodes to determine a differential voltage between the voltage electrodes and two current flows from separate ones of the current electrodes. From the differential voltage and multiple current flows, the computing facilities determine borehole wall resistivity, and may display the resistivity as a borehole wall image.
摘要翻译：油基泥浆成像系统和方法具有间隙补偿。在一些实施例中，公开的记录系统包括与表面计算设备通信的测井工具。记录工具设置有传感器阵列，其具有位于两个电流电极之间的至少两个电压电极，两个电流电极由激励源激励以在井壁中产生振荡电场。两个电流电极各自用导电屏蔽屏蔽，以防止电流泄漏到测井工具主体中。测量共模电压，并且控制激励源的相位和幅度以减小电压检测器的共模电压和参考电压之间的差。测井工具还设置有耦合到电压检测器和电流电极的电子器件，以确定电压电极之间的差分电压和来自分离的电流电极的两个电流。从差分电压和多个电流流出，计算设备确定井壁电阻率，并可以将电阻率显示为井壁图像。

2. 发明申请

US20070103162A1 Oil Based Mud Imaging Tool With Common Mode Voltage Compensation 有权
标题翻译：油基泥浆成像工具，共模电压补偿
公开(公告)号：US20070103162A1
公开(公告)日：2007-05-10
申请号：US11422135
申请日：2006-06-05
申请人： Marian Morys , William Schaecher , George Goodman , Raj Pai
发明人： Marian Morys , William Schaecher , George Goodman , Raj Pai
IPC分类号： G01V3/00
CPC分类号： G01V3/24
摘要： An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.
摘要翻译：一种用于最小化共模电压信号在井下测井工具中的影响的装置和方法，用于确定井眼壁的相邻部分的电阻率。两个电流电极由激发源激励以在井壁中产生振荡电场。通过两个电压电极测量穿过井壁的段的电压降，并且将差分电压与测量的电流结合使用以确定井壁的电阻率值。通过控制激励源来测量和最小化两个电压电极前面的共模电压，从而降低电阻率测量误差。

3. 发明授权

US08895928B2 Compensated optical detection apparatus, systems, and methods 有权
标题翻译：补偿光学检测装置，系统和方法
公开(公告)号：US08895928B2
公开(公告)日：2014-11-25
申请号：US13576318
申请日：2011-02-03
申请人： Raj Pai , Marian Morys , Phap Hung Lien
发明人： Raj Pai , Marian Morys , Phap Hung Lien
IPC分类号： G01J5/14 , E21B47/10
CPC分类号： G01J5/12 , E21B47/102 , E21B49/08 , E21B2049/085 , G01J5/14 , G01J2005/067
摘要： In some embodiments, apparatus and systems, as well as methods, may operate to receive radiation at an active detector of a pair of radiation detectors to provide a first signal proportional to an intensity of the radiation, to receive none of the radiation at a blind detector of the pair of radiation detectors to provide a second signal proportional to the reception of no radiation, and to combine the first signal and the second signal to provide an output signal representing the difference between the first signal and the second signal. The pair of radiation detectors may comprise thermopile detectors. Combination may occur via differential amplification. Additional apparatus, systems, and methods are disclosed.
摘要翻译：在一些实施例中，设备和系统以及方法可以操作以在一对辐射检测器的有源检测器处接收辐射，以提供与辐射强度成比例的第一信号，以在盲人处接收辐射检测器，以提供与无辐射的接收成比例的第二信号，以及组合第一信号和第二信号以提供表示第一信号和第二信号之间的差的输出信号。该对辐射检测器可以包括热电堆检测器。可以通过差分放大进行组合。公开了附加装置，系统和方法。

4. 发明授权

US09304227B2 Detector, preamplifier selection apparatus, systems, and methods 有权
标题翻译：检测器，前置放大器选择装置，系统和方法
公开(公告)号：US09304227B2
公开(公告)日：2016-04-05
申请号：US13583118
申请日：2010-03-09
申请人： Raj Pai , Marian Morys , Homi Phiroze Cooper , John Thomas
发明人： Raj Pai , Marian Morys , Homi Phiroze Cooper , John Thomas
IPC分类号： G01J5/00 , G01V8/10 , E21B47/06 , E21B47/12 , G01N21/27 , G01J1/44 , G01V8/00 , G01J5/22
CPC分类号： G01V8/10 , E21B47/065 , E21B47/123 , G01N21/27
摘要： Optical detection apparatus (300) comprising an optical detector (302, 304, 306), a detector amplifier (336, 338, 340), and switching means, e.g., a multiplexer (344, 348), for dynamically selecting at least one of the optical detector or the detector amplifier by switching from among at least two alternative optical detectors and/or at least two detector amplifiers such as to minimize noise equivalent power (NEP) of a selected detector or combination of detector and amplifier under given operating conditions.
摘要翻译：光检测装置（300）包括光检测器（302,304,306），检波器放大器（336,333,340）和切换装置，例如多路复用器（344,348），用于动态地选择以下各项中的至少一个：光检测器或检测器放大器，通过从至少两个备选的光学检测器和/或至少两个检测器放大器中切换，以使给定操作条件下选定的检测器或检测器和放大器的组合的噪声等效功率（NEP）最小化。

5. 发明申请

US20130119246A1 DETECTOR, PREAMPLIFIER SELECTION APPARATUS, SYSTEMS, AND METHODS 有权
标题翻译：检测器，前置放大器选择装置，系统和方法
公开(公告)号：US20130119246A1
公开(公告)日：2013-05-16
申请号：US13583118
申请日：2010-03-09
申请人： Raj Pai , Marian Morys , Homi Phiroze Cooper , John Thomas
发明人： Raj Pai , Marian Morys , Homi Phiroze Cooper , John Thomas
IPC分类号： G01V8/10
CPC分类号： G01V8/10 , E21B47/065 , E21B47/123 , G01N21/27
摘要： Optical detection apparatus (300) comprising an optical detector (302, 304, 306), a detector amplifier (336, 338, 340), and switching means, e.g., a multiplexer (344, 348), for dynamically selecting at least one of the optical detector or the detector amplifier by switching from among at least two alternative optical detectors and/or at least two detector amplifiers such as to minimize noise equivalent power (NEP) of a selected detector or combination of detector and amplifier under given operating conditions.
摘要翻译：光检测装置（300）包括光检测器（302,304,306），检波器放大器（336,333,340）和切换装置，例如多路复用器（344,348），用于动态地选择以下各项中的至少一个：光检测器或检测器放大器，通过从至少两个备选的光学检测器和/或至少两个检测器放大器中切换，以使给定操作条件下选定的检测器或检测器和放大器的组合的噪声等效功率（NEP）最小化。

6. 发明授权

US07579841B2 Standoff compensation for imaging in oil-based muds 有权
标题翻译：油基泥浆成像的间隔补偿
公开(公告)号：US07579841B2
公开(公告)日：2009-08-25
申请号：US11469859
申请日：2006-09-02
申请人： Luis E. San Martin , Humberto E. Rosa , Raj Pai , William J. Schaecher , Myrick L. Monroe , Marian L. Morys , Carl Dodge
发明人： Luis E. San Martin , Humberto E. Rosa , Raj Pai , William J. Schaecher , Myrick L. Monroe , Marian L. Morys , Carl Dodge
IPC分类号： G01V3/20 , G01V3/24
CPC分类号： G01V3/24
摘要： Oil-based mud imaging systems and methods having standoff compensation. In some embodiments, disclosed logging systems include a logging tool in communication with surface computing facilities. The logging tool is provided with a sensor array having at least two voltage electrodes positioned between two current electrodes energized by an excitation source to create an oscillatory electric field in a borehole wall. The two current electrodes are each shielded with conductive shields to prevent current leakage into the logging tool body. A common mode voltage is measured, and the phase and amplitude of the excitation source is controlled to reduce the difference between the common mode voltage and reference voltage of a voltage detector. The logging tool is further provided with electronics coupled to the voltage detector and the current electrodes to determine a differential voltage between the voltage electrodes and two current flows from separate ones of the current electrodes. From the differential voltage and multiple current flows, the computing facilities determine borehole wall resistivity, and may display the resistivity as a borehole wall image.
摘要翻译：油基泥浆成像系统和方法具有间隙补偿。在一些实施例中，公开的记录系统包括与表面计算设备通信的测井工具。记录工具设置有传感器阵列，其具有位于两个电流电极之间的至少两个电压电极，两个电流电极由激励源激励以在井壁中产生振荡电场。两个电流电极各自用导电屏蔽屏蔽，以防止电流泄漏到测井工具主体中。测量共模电压，并且控制激励源的相位和幅度以减小电压检测器的共模电压和参考电压之间的差。测井工具还设置有耦合到电压检测器和电流电极的电子器件，以确定电压电极之间的差分电压和来自分离的电流电极的两个电流。从差分电压和多个电流流出，计算设备确定井壁电阻率，并可以将电阻率显示为井壁图像。

7. 发明授权

US08212568B2 Oil based mud imaging tool with common mode voltage compensation 有权
标题翻译：油相泥浆成像工具，具有共模电压补偿
公开(公告)号：US08212568B2
公开(公告)日：2012-07-03
申请号：US12758276
申请日：2010-04-12
申请人： Marian L. Morys , William J. Schaecher , George D. Goodman , Raj Pai
发明人： Marian L. Morys , William J. Schaecher , George D. Goodman , Raj Pai
IPC分类号： G01V3/18 , G01V3/20
CPC分类号： G01V3/24
摘要： An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.
摘要翻译：一种用于最小化共模电压信号在井下测井工具中的影响的装置和方法，用于确定井眼壁的相邻部分的电阻率。两个电流电极由激发源激励以在井壁中产生振荡电场。通过两个电压电极测量穿过井壁的段的电压降，并且将差分电压与测量的电流结合使用以确定井壁的电阻率值。通过控制激励源来测量和最小化两个电压电极前面的共模电压，从而降低电阻率测量误差。

8. 发明授权

US09091151B2 Downhole optical radiometry tool 有权
标题翻译：井下光学辐射测量工具
公开(公告)号：US09091151B2
公开(公告)日：2015-07-28
申请号：US13502805
申请日：2010-11-18
申请人： Christopher M. Jones , Stephen A. Zannoni , Michael T. Pelletier , Raj Pai , Wei Zhang , Marian L. Morys , Robert Atkinson
发明人： Christopher M. Jones , Stephen A. Zannoni , Michael T. Pelletier , Raj Pai , Wei Zhang , Marian L. Morys , Robert Atkinson
IPC分类号： G01V5/08 , E21B47/10 , E21B49/10
CPC分类号： E21B47/102 , E21B49/10
摘要： Various methods and tools optically analyze downhole fluid properties in situ. Some disclosed downhole optical radiometry tools include a tool body having a sample cell for fluid flow. A light beam passes through the sample cell and a spectral operation unit (SOU) such as a prism, filter, interferometer, or multivariate optical element (MOE). The resulting light provides a signal indicative of one or more properties of the fluid. A sensor configuration using electrically balanced thermopiles offers a high sensitivity over a wide temperature range. Further sensitivity is achieved by modulating the light beam and/or by providing a reference light beam that does not interact with the fluid flow. To provide a wide spectral range, some embodiments include multiple filaments in the light source, each filament having a different emission spectrum. Moreover, some embodiments include a second light source, sample cell, SOU, and detector to provide increased range, flexibility, and reliability.
摘要翻译：各种方法和工具可以原位分析井下流体性质。一些公开的井下光学辐射测量工具包括具有用于流体流动的样品池的工具主体。光束通过样品池和诸如棱镜，滤光器，干涉仪或多元光学元件（MOE）的光谱操作单元（SOU）。所得到的光提供指示流体的一个或多个特性的信号。使用电平衡热电堆的传感器配置在宽温度范围内提供高灵敏度。通过调制光束和/或通过提供不与流体流相互作用的参考光束来实现进一步的灵敏度。为了提供宽的光谱范围，一些实施例包括光源中的多个细丝，每个细丝具有不同的发射光谱。此外，一些实施例包括第二光源，样品池，SOU和检测器，以提供更大的范围，灵活性和可靠性。

9. 发明授权

US07696756B2 Oil based mud imaging tool with common mode voltage compensation 有权
标题翻译：油相泥浆成像工具，具有共模电压补偿
公开(公告)号：US07696756B2
公开(公告)日：2010-04-13
申请号：US11422135
申请日：2006-06-05
申请人： Marian L. Morys , William J. Schaecher , George D. Goodman , Raj Pai
发明人： Marian L. Morys , William J. Schaecher , George D. Goodman , Raj Pai
IPC分类号： G01V3/18
CPC分类号： G01V3/24
摘要： An apparatus and method for minimizing the effects of a common mode voltage signal in downhole logging tools utilized to determine the resistivity of an adjacent portion of a borehole wall. Two current electrodes are energized by an excitation source to create an oscillatory electric field in a borehole wall. A voltage drop across a segment of the borehole wall is measured by two voltage electrodes, and the differential voltage is used in combination with a measured current flow to determine a resistivity value for the borehole wall. A common mode voltage in front of the two voltage electrodes is measured and minimized by controlling the excitation source, thereby reducing the resistivity measurement error.
摘要翻译：一种用于最小化共模电压信号在井下测井工具中的影响的装置和方法，用于确定井眼壁的相邻部分的电阻率。两个电流电极由激发源激励以在井壁中产生振荡电场。通过两个电压电极测量穿过井壁的段的电压降，并且将差分电压与测量的电流结合使用以确定井壁的电阻率值。通过控制激励源来测量和最小化两个电压电极前面的共模电压，从而降低电阻率测量误差。

10. 发明申请

US20120298851A1 COMPENSATED OPTICAL DETECTION APPARATUS, SYSTEMS, AND METHODS 有权
标题翻译：补偿光学检测装置，系统和方法
公开(公告)号：US20120298851A1
公开(公告)日：2012-11-29
申请号：US13576318
申请日：2011-02-03
申请人： Raj Pai , Maria Morys , Phap Hung Lien
发明人： Raj Pai , Maria Morys , Phap Hung Lien
IPC分类号： G01V8/20 , G01J1/44
CPC分类号： G01J5/12 , E21B47/102 , E21B49/08 , E21B2049/085 , G01J5/14 , G01J2005/067
摘要： In some embodiments, apparatus and systems, as well as methods, may operate to receive radiation at an active detector of a pair of radiation detectors to provide a first signal proportional to an intensity of the radiation, to receive none of the radiation at a blind detector of the pair of radiation detectors to provide a second signal proportional to the reception of no radiation, and to combine the first signal and the second signal to provide an output signal representing the difference between the first signal and the second signal. The pair of radiation detectors may comprise thermopile detectors. Combination may occur via differential amplification. Additional apparatus, systems, and methods are disclosed.
摘要翻译：在一些实施例中，设备和系统以及方法可以操作以在一对辐射检测器的有源检测器处接收辐射，以提供与辐射强度成比例的第一信号，以在盲人处接收辐射检测器，以提供与无辐射的接收成比例的第二信号，以及组合第一信号和第二信号以提供表示第一信号和第二信号之间的差的输出信号。该对辐射探测器可以包括热电堆检测器。可以通过差分放大进行组合。公开了附加装置，系统和方法。

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