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公开(公告)号：US11727583B2
公开(公告)日：2023-08-15
申请号：US17010372
申请日：2020-09-02
申请人： Hao Zhang , Stephen Dymmock , Nora Patricia Alarcon , Fei Le
发明人： Hao Zhang , Stephen Dymmock , Nora Patricia Alarcon , Fei Le
IPC分类号： G06T7/50 , E21B47/002 , G06T3/40 , E21B47/12
CPC分类号： G06T7/50 , E21B47/0025 , G06T3/4053 , E21B47/12
摘要： A method for characterizing a subsurface formation includes receiving image data of the subsurface formation obtained by a sensor tool and receiving a plurality of non-image data logs, each non-image data log being obtained by a different type of sensor tool. The method also includes performing an electrofacies analysis on the plurality of non-image data logs where the electrofacies analysis includes defining clusters wherein each cluster has a similar property to provide a plurality of electrofacies blocks with each electrofacies block representing a depth interval. The method further includes partitioning the image data into multiple high-resolution depth segments that share a similar property, feature, and/or pattern for each electrofacies block and assigning data from the plurality of non-image data logs into a corresponding high-resolution depth segment to provide a high-resolution data log that characterizes the subsurface formation.
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公开(公告)号：US20220065096A1
公开(公告)日：2022-03-03
申请号：US17010372
申请日：2020-09-02
申请人： Hao Zhang , Stephen Dymmock , Nora Patricia Alarcon , Fei Le
发明人： Hao Zhang , Stephen Dymmock , Nora Patricia Alarcon , Fei Le
IPC分类号： E21B47/002 , E21B47/12 , G06T3/40 , G06T7/50
摘要： A method for characterizing a subsurface formation includes receiving image data of the subsurface formation obtained by a sensor tool and receiving a plurality of non-image data logs, each non-image data log being obtained by a different type of sensor tool. The method also includes performing an electrofacies analysis on the plurality of non-image data logs where the electrofacies analysis includes defining clusters wherein each cluster has a similar property to provide a plurality of electrofacies blocks with each electrofacies block representing a depth interval. The method further includes partitioning the image data into multiple high-resolution depth segments that share a similar property, feature, and/or pattern for each electrofacies block and assigning data from the plurality of non-image data logs into a corresponding high-resolution depth segment to provide a high-resolution data log that characterizes the subsurface formation.
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3.发明授权Method and apparatus for calibrating deep-reading multi-component induction tools with minimal ground effects 有权用于校准具有最小地面效应的深度读数多分量感应工具的方法和装置公开(公告)号：US08890541B2
公开(公告)日：2014-11-18
申请号：US13211863
申请日：2011-08-17
摘要： An apparatus and method for calibrating a multi-component induction logging tool. The method may include orienting a Z-transmitter coil to be substantially orthogonal to at least one Z-receiver coil, positioning an X-transmitter coil disposed on the logging tool so that the X-transmitter coil is substantially parallel to a conducting surface; encompassing the Z-transmitter coil, the X-transmitter coil, and at least one Z-receiver coil of the logging tool with at least one conducting loop of a calibrator; and calibrating the logging tool using the calibrator. The apparatus may include a calibrator configured to receive the logging tool. The Z-transmitter coil and the Z-receiver coil may be located on separate subs that are detachable from one another.
摘要翻译： 一种用于校准多部件感应测井工具的装置和方法。 该方法可以包括将Z-发射器线圈定向为与至少一个Z-接收器线圈基本上正交，定位设置在测井工具上的X发射器线圈，使得X发射器线圈基本上平行于导电表面; 包括测量工具的Z发射器线圈，X发射器线圈和至少一个Z轴接收器线圈，其具有校准器的至少一个导电回路; 并使用校准器校准测井工具。 该装置可以包括被配置为接收测井工具的校准器。 Z发射器线圈和Z-接收器线圈可以位于可彼此分离的分离的子系统上。
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公开(公告)号：US20090032781A1
公开(公告)日：2009-02-05
申请号：US12281103
申请日：2007-03-02
申请人： Hui Wang , Daniel Brandl , Fei Le , Peter Nordlander , Naomi J. Halas
发明人： Hui Wang , Daniel Brandl , Fei Le , Peter Nordlander , Naomi J. Halas
CPC分类号： B82B1/00 , B82B3/00 , B82Y30/00 , B82Y40/00 , Y10T428/2991 , Y10T428/2993
摘要： A new hybrid nanoparticle, i.e., a nanorice particle, which combines the intense local fields of nanorods with the highly tunable plasmon resonances of nanoshells, is described herein. This geometry possesses far greater structural tunability than previous nanoparticle geometries, along with much larger local field enhancements and far greater sensitivity as a surface plasmon resonance (SPR) nanosensor than presently known dielectric-conductive material nanostructures. In an embodiment, a nanoparticle comprises a prolate spheroid-shaped core having a first aspect ratio. The nanoparticle also comprises at least one conductive shell surrounding said prolate spheroid-shaped core. The nanoparticle has a surface plasmon resonance sensitivity of at least 600 nm RIU−1. Methods of making the disclosed nanorice particles are also described herein.
摘要翻译： 本文描述了将纳米棒的强局部场与纳米壳的高度可调谐等离子体共振组合的新的混合纳米颗粒，即纳米颗粒。 该几何具有比以前的纳米颗粒几何形状更大的结构可调性，以及比目前已知的介电导电材料纳米结构更大的局部场增强和比表面等离子体共振（SPR）纳米传感器更大的灵敏度。 在一个实施方案中，纳米颗粒包含具有第一纵横比的扁球状球形芯。 纳米颗粒还包括围绕所述扁球状球形芯的至少一个导电壳。 纳米颗粒具有至少600nm RIU-1的表面等离子体共振灵敏度。 本文还描述了制备所公开的纳米微粒的方法。
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公开(公告)号：US10139517B2
公开(公告)日：2018-11-27
申请号：US14577663
申请日：2014-12-19
摘要： A method for imaging an earth formation includes estimating an apparent resistivity (AR) value and an apparent distance to a bedding plane (AD2B) value for each of a plurality of samples derived from measurements of a time-dependent transient electromagnetic signal, estimating an inversion-based resistivity value (IB-R) and an inversion-based distance to a bedding plane (IB-D2B) value at a first sample of each consecutive depth interval, wherein each depth interval includes a plurality of consecutive samples, and determining a difference between apparent values and the corresponding inversion-based values. The method further includes generating an image of the earth formation using the AR and AD2B values for the entire interval if the difference is less than a threshold value and generating an image of the earth formation using IB-R and IB-D2B values for the entire interval if the difference is greater than the threshold value.
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6.发明申请公开(公告)号：US20130013210A1
公开(公告)日：2013-01-10
申请号：US13346263
申请日：2012-01-09
申请人： Gregory B. Itskovich , David R. Beard , Fei Le
发明人： Gregory B. Itskovich , David R. Beard , Fei Le
IPC分类号： G01V3/38
CPC分类号： G01V3/20
摘要： This disclosure relates to apparatuses and methods for reducing current leakage between a measure electrode and a logging tool body during borehole investigations in an earth formation involving electric current and non-conductive drilling fluid. The apparatus may include one or more transmitters disposed on a pad body, configured to inject an electric current into the earth formation, and coupled to the mandrel and one or more measure electrodes. The measure electrodes may be configured to receive current from the formation and coupled to a back plate of the pad body. The apparatus may be configured to maintain a selected ratio between pad body to logging tool body impedance and transmitters to logging tool body impedance sufficient to reduce current leakage between the earth formation and the logging tool body. The transmitter/mandrel and measure electrode/back plate may be electrically isolated from one another. The method may include using the apparatus.
摘要翻译： 本公开涉及用于在包括电流和非导电钻井液的地层中的井眼研究期间减小测量电极和测井工具主体之间的电流泄漏的装置和方法。 设备可以包括设置在垫体上的一个或多个发射器，其被配置为将电流注入到地层中，并且耦合到心轴和一个或多个测量电极。 测量电极可以被配置为从地层接收电流并且耦合到衬垫本体的背板。 该装置可以被配置为保持衬垫主体与测井工具主体阻抗之间的选定比率，并且将发射器保持在足以减小地球形成和测井工具主体之间的电流泄漏的工具体阻抗。 发射器/心轴和测量电极/背板可以彼此电隔离。 该方法可以包括使用该装置。
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公开(公告)号：US07790066B2
公开(公告)日：2010-09-07
申请号：US12281103
申请日：2007-03-02
申请人： Hui Wang , Daniel Brandl , Fei Le , Peter Nordlander , Nancy J. Halas
发明人： Hui Wang , Daniel Brandl , Fei Le , Peter Nordlander , Nancy J. Halas
CPC分类号： B82B1/00 , B82B3/00 , B82Y30/00 , B82Y40/00 , Y10T428/2991 , Y10T428/2993
摘要： A new hybrid nanoparticle, i.e., a nanorice particle, which combines the intense local fields of nanorods with the highly tunable plasmon resonances of nanoshells, is described herein. This geometry possesses far greater structural tunability than previous nanoparticle geometries, along with much larger local field enhancements and far greater sensitivity as a surface plasmon resonance (SPR) nanosensor than presently known dielectric-conductive material nanostructures. In an embodiment, a nanoparticle comprises a prolate spheroid-shaped core having a first aspect ratio. The nanoparticle also comprises at least one conductive shell surrounding said prolate spheroid-shaped core. The nanoparticle has a surface plasmon resonance sensitivity of at least 600 nm RIU−1. Methods of making the disclosed nanorice particles are also described herein.
摘要翻译： 本文描述了将纳米棒的强局部场与纳米壳的高度可调谐等离子体共振组合的新的混合纳米颗粒，即纳米颗粒。 该几何具有比以前的纳米颗粒几何形状更大的结构可调性，以及比目前已知的介电导电材料纳米结构更大的局部场增强和比表面等离子体共振（SPR）纳米传感器更大的灵敏度。 在一个实施方案中，纳米颗粒包含具有第一纵横比的扁球状球形芯。 纳米颗粒还包括围绕所述扁球状球形芯的至少一个导电壳。 纳米颗粒具有至少600nm RIU-1的表面等离子体共振灵敏度。 本文还描述了制备所公开的纳米微粒的方法。
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公开(公告)号：US11060397B2
公开(公告)日：2021-07-13
申请号：US16430490
申请日：2019-06-04
IPC分类号： E21B47/01 , G01N27/22 , E21B47/12 , E21B47/001 , E21B47/0228 , E21B47/10
摘要： An example method includes disposing a carrier in a borehole in an earth formation. The carrier includes a logging assembly for performing a formation evaluation of the earth formation using a sensor in proximity to a borehole wall of the borehole, fluid being disposed at least partially between the sensor and the borehole wall. The method further includes estimating an apparent dielectric loss angle of the fluid to determine a stand-off effect caused by the fluid. The method further includes estimating a formation dielectric loss angle and determining a formation resistance based at least in part on the formation dielectric loss angle. The method further includes adjusting the formation evaluation based at least in part on the estimated formation resistance that accounts for the stand-off effect caused by the fluid. The method further includes performing a wellbore operation based at least in part on the adjusted formation evaluation.
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9.发明申请HYBRID IMAGE OF EARTH FORMATION BASED ON TRANSIENT ELECTROMAGNETC MEASUREMENTS 审中-公开基于瞬态电磁测量的地震形成混合图像公开(公告)号：US20160178787A1
公开(公告)日：2016-06-23
申请号：US14577663
申请日：2014-12-19
摘要： A method for imaging an earth formation includes estimating an apparent resistivity (AR) value and an apparent distance to a bedding plane (AD2B) value for each of a plurality of samples derived from measurements of a time-dependent transient electromagnetic signal, estimating an inversion-based resistivity value (IB-R) and an inversion-based distance to a bedding plane (IB-D2B) value at a first sample of each consecutive depth interval, wherein each depth interval includes a plurality of consecutive samples, and determining a difference between apparent values and the corresponding inversion-based values. The method further includes generating an image of the earth formation using the AR and AD2B values for the entire interval if the difference is less than a threshold value and generating an image of the earth formation using IB-R and IB-D2B values for the entire interval if the difference is greater than the threshold value.
摘要翻译： 用于对地球成像进行成像的方法包括估计从时间相关的瞬时电磁信号的测量导出的多个样本中的每个样本的视电阻率（AR）值和与层平面（AD2B）值的表观距离，估计反演 （IB-R）和基于与每个连续深度间隔的第一样本的层叠平面（IB-D2B）值的基于反演的距离，其中每个深度间隔包括多个连续样本，并且确定差异 在表观值和相应的基于反演的值之间。 该方法还包括：如果该差小于阈值，则使用全部间隔的AR和AD2B值来产生地层的图像，并且使用IB-R和IB-D2B值为整体生成地层的图像 间隔如果差值大于阈值。
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公开(公告)号：US20190383131A1
公开(公告)日：2019-12-19
申请号：US16430490
申请日：2019-06-04
摘要： An example method includes disposing a carrier in a borehole in an earth formation. The carrier includes a logging assembly for performing a formation evaluation of the earth formation using a sensor in proximity to a borehole wall of the borehole, fluid being disposed at least partially between the sensor and the borehole wall. The method further includes estimating an apparent dielectric loss angle of the fluid to determine a stand-off effect caused by the fluid. The method further includes estimating a formation dielectric loss angle and determining a formation resistance based at least in part on the formation dielectric loss angle. The method further includes adjusting the formation evaluation based at least in part on the estimated formation resistance that accounts for the stand-off effect caused by the fluid. The method further includes performing a wellbore operation based at least in part on the adjusted formation evaluation.
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