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1.发明公开公开(公告)号：US20240201414A1
公开(公告)日：2024-06-20
申请号：US18553628
申请日：2021-04-28
发明人： Ping Zhang , Gong Li Wang , Wael Abdallah , Dean Homan , Shouxiang Ma
CPC分类号： G01V3/38 , E21B44/00 , E21B49/00 , G01V3/30 , E21B2200/20
摘要： A method for characterizing a subterranean formation is provided that involves obtaining resistivity log data measured by a logging-while-drilling electromagnetic tool operated while drilling a wellbore that traverses the subterranean formation, and calculating at least one of a first data value representing water saturation of the subterranean formation and a second data value representing cation exchange capacity (CEC) of the subterranean formation from the resistivity log data. In embodiments, the method can further involve storing at least one of the first data value and the second data value in computer memory, and/or outputting at least one of the first data value and the second data value as part of a log for well placement, formation evaluation. geological modeling, or reservoir management. The first data value and/or the second data value can also be used for geo-steering the drilling of the wellbore.
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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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4.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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5.发明公开公开(公告)号：US20230375741A1
公开(公告)日：2023-11-23
申请号：US18247086
申请日：2021-04-29
发明人： Ping Zhang , Shouxiang Ma , Wael Abdallah , Chengbing Liu
摘要： The disclosure relates to methods and systems for identifying formations that are clay-free or with minimal amount of clays, which have high hydrocarbon potential, by using both low frequency permittivity measurements (e.g., low-frequency permittivity measurements) and natural gamma ray flux measurements.
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6.发明申请公开(公告)号：US20210124079A1
公开(公告)日：2021-04-29
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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公开(公告)号：US20210123877A1
公开(公告)日：2021-04-29
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：US20240175353A1
公开(公告)日：2024-05-30
申请号：US18058939
申请日：2022-11-28
发明人： Mohamed Saif , Sachit Saumya , Wael Abdallah , Ramy Ahmed Mohamed , Aida Abdullah Abri , Shouxiang Mark Ma
CPC分类号： E21B49/005 , E21B49/087
摘要： A method can include receiving Stoneley wave data acquired by a sonic tool disposed in a borehole in a formation; performing an inversion using the Stoneley wave data to generate formation and borehole information; and identifying an interval along the borehole for performance of a downhole acquisition operation by a downhole tool using a machine learning model and the formation and borehole information as input to the machine learning model.
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公开(公告)号：US20240069239A1
公开(公告)日：2024-02-29
申请号：US18458255
申请日：2023-08-30
发明人： Nicholas N. Bennett , John Adam Donald , Olusegun M. Akinyose , Shouxiang Mark Ma , Sherif Ghadiry , Wael Abdallah
CPC分类号： G01V1/50 , E21B7/04 , E21B44/00 , E21B49/00 , E21B2200/20 , G01V2200/16 , G01V2210/6242 , G01V2210/6244 , G01V2210/6246 , G01V2210/64
摘要： Methods and systems are provided that perform sonic measurements in a high-angle wellbore or horizontal wellbore or vertical wellbore penetrating highly dipped formation layers where the formation layers can have a high degree of dip relative to the wellbore. Sonic data can be generated from the sonic measurements and processed using multiple arrival event processing to determine formation porosity, elastic rock properties and geometric information for a tool layer and nearby shoulder bed. Such information can be integrated into a 2D or 3D layered model of the formation. The elastic rock properties of the tool layer and shoulder bed derived from the multiple arrival event processing can provide more representative elastic property values, which can account for heterogeneity along the wellbore. Furthermore, the method can involve using at least part of the properties including porosity, elastic rock properties, and geometric information for the tool layer and shoulder bed for well placement (geosteering) and well completion optimization.
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10.发明公开公开(公告)号：US20230375739A1
公开(公告)日：2023-11-23
申请号：US18044622
申请日：2021-09-09
发明人： Gong Li Wang , Dean M. Homan , Ping Zhang , Wael Abdallah , Shouxiang Ma
摘要： A method for estimating resistivity and dielectric constant values of a multi-layer subterranean formation acquiring electromagnetic propagation measurements of the subterranean formation and processing the measurements via inversion to compute the resistivity and dielectric constant values. A one-dimensional formation model is utilized including a plurality of formation layers in which each of the formation layers includes a resistivity value and a dielectric constant value.
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