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1.发明授权公开(公告)号：US11940588B2
公开(公告)日：2024-03-26
申请号：US17588897
申请日：2022-01-31
发明人： Shouxiang Ma , Ping Zhang , Wael Abdallah , Chengbing Liu
摘要： Methods and systems are provided for clay detection, clay typing, and clay volume quantification using downhole electromagnetic measurements conducted by a downhole logging tool on a formation at a low frequency less than 5000 Hz. The downhole electromagnetic measurements are used to determine permittivity data that characterizes permittivity of the formation at the low frequency less than 5000 Hz. The downhole low frequency electromagnetic measurements are nondestructive, and the results indicate it is with high sensitivity to the existence of clays.
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公开(公告)号：US20200025967A1
公开(公告)日：2020-01-23
申请号：US16041454
申请日：2018-07-20
发明人： Ping ZHANG , Wael ABDALLAH , Shouxiang Ma , Chengbing Liu
摘要： An array electromagnetic tool is run in a borehole, and resulting signals are processed to provide at least one of real and imaginary conductivity components, σR* and σI*. The at least one of real and imaginary conductivity components is compared to a corresponding representative conductivity component of a plurality of different clay groups and a determination of clay type in the formation is made therefrom.
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公开(公告)号：US11754518B2
公开(公告)日：2023-09-12
申请号：US17429711
申请日：2020-02-11
发明人： Andrea Valori , Salah Mohammed Al-Ofi , Wael Abdallah , Marie Van Steene , Chengbing Liu , Shouxiang Ma
CPC分类号： G01N24/081 , G01V3/20 , G01V3/32 , G01V3/38
摘要： Methods and systems are provided that employ a combination of dielectric dispersion measurement(s) and Nuclear Magnetic Resonance (NMR) measurement(s) to determine data that characterizes tortuosity of rock and data that characterizes tortuosity of fluid phases in the rock independently from one another.
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公开(公告)号：US20220205937A1
公开(公告)日：2022-06-30
申请号：US17429711
申请日：2020-02-11
发明人： Andrea Valori , Salah Mohammed Al-Ofi , Wael Abdallah , Marie Van Steene , Chengbing Liu , Shouxiang Ma
摘要： Methods and systems are provided that employ a combination of dielectric dispersion measurement(s) and Nuclear Magnetic Resonance (NMR) measurement(s) to determine data that characterizes tortuosity of rock and data that characterizes tortuosity of fluid phases in the rock independently from one another. t,?
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5.发明申请公开(公告)号：US20220155479A1
公开(公告)日：2022-05-19
申请号：US17588897
申请日：2022-01-31
发明人： Shouxiang Ma , Ping Zhang , Wael Abdallah , Chengbing Liu
摘要： Methods and systems are provided for clay detection, clay typing, and clay volume quantification using downhole electromagnetic measurements conducted by a downhole logging tool on a formation at a low frequency less than 5000 Hz. The downhole electromagnetic measurements are used to determine permittivity data that characterizes permittivity of the formation at the low frequency less than 5000 Hz. The downhole low frequency electromagnetic measurements are nondestructive, and the results indicate it is with high sensitivity to the existence of clays.
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公开(公告)号：US11499935B2
公开(公告)日：2022-11-15
申请号：US16663673
申请日：2019-10-25
发明人： Wael Abdallah , Ping Zhang , Shouxiang Ma , Chengbing Liu
摘要： Methods and systems are provided for clay detection, clay typing, and clay volume quantification using electromagnetic measurements on a porous media sample at a low frequency less than 5000 Hz. The electromagnetic measurements are used to determine and store permittivity data that characterizes permittivity of the porous media sample at the low frequency less than 5000 Hz. The low frequency electromagnetic measurements can be performed in a laboratory, at a wellsite or other surface location. The low frequency electromagnetic measurements are nondestructive, and the results indicate that the methods and systems are highly sensitive to the existence of clays.
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公开(公告)号：US20210124071A1
公开(公告)日：2021-04-29
申请号：US16984210
申请日：2020-08-04
发明人： Ping Zhang , Wael Abdallah , Shouxiang Ma , Chengbing Liu
摘要： Methods and systems are provided that determine or estimate total clay volume fraction in a formation for well log data of the formation using machine learning are described. Methods and systems are also provided that employ computation models to determine amounts or concentrations of at least one clay mineral in the formation from total clay volume fraction of the formation.
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公开(公告)号：US11892581B2
公开(公告)日：2024-02-06
申请号：US16984210
申请日：2020-08-04
发明人： Ping Zhang , Wael Abdallah , Shouxiang Ma , Chengbing Liu
CPC分类号： G01V1/306 , E21B49/005 , E21B49/0875 , G06N20/00
摘要： Methods and systems are provided that determine or estimate total clay volume fraction in a formation for well log data of the formation using machine learning are described. Methods and systems are also provided that employ computation models to determine amounts or concentrations of at least one clay mineral in the formation from total clay volume fraction of the formation.
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公开(公告)号：US11796710B2
公开(公告)日：2023-10-24
申请号：US16940479
申请日：2020-07-28
发明人： Ping Zhang , Shouxiang Ma , Wael Abdallah , Chengbing Liu
CPC分类号： G01V3/38 , E21B49/00 , E21B49/0875 , G01N27/221 , G01N33/18 , G01N33/24 , G01V3/28
摘要： Methods and systems are provided for characterizing formation water salinity of subsurface formation using multifrequency permittivity data over a range of frequencies below 1 MHz. The multifrequency permittivity data is processed to determine salinity of formation water contained in the subsurface formation. Other useful formation properties (such as formation water saturation) can be determined based on the formation water salinity.
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10.发明授权公开(公告)号：US11237292B2
公开(公告)日：2022-02-01
申请号：US16663636
申请日：2019-10-25
发明人： Shouxiang Ma , Ping Zhang , Wael Abdallah , Chengbing Liu
摘要： Methods and systems are provided for clay detection, clay typing, and clay volume quantification using downhole electromagnetic measurements conducted by a downhole logging tool on a formation at a low frequency less than 5000 Hz. The downhole electromagnetic measurements are used to determine permittivity data that characterizes permittivity of the formation at the low frequency less than 5000 Hz. The downhole low frequency electromagnetic measurements are nondestructive, and the results indicate it is with high sensitivity to the existence of clays.
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