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11.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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13.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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14.发明授权公开(公告)号：US11550975B2
公开(公告)日：2023-01-10
申请号：US16940436
申请日：2020-07-28
发明人： Sharath Chandra Mahavadi , Robin Singh , Wael Abdallah , Mohammed Al-Hamad , Bastian Sauerer , Shouxiang Ma , Leilei Zhang
IPC分类号： G01N33/28 , E21B49/08 , G06F30/27 , G01N11/00 , G01N9/00 , G01V99/00 , E21B47/07 , G06F111/10 , E21B41/02 , E21B49/10 , E21B43/38
摘要： Methods and systems are provided for characterizing interfacial tension (IFT) of reservoir fluids, which involves obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions, and inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data. In embodiments, the fluid property data represents single-phase fluid properties of the reservoir fluid sample, such as fluid density and viscosity of an oil phase of the reservoir fluid sample and fluid density of a water phase of the reservoir fluid sample. In embodiments, the computation model can be based on machine learning or analytics combined with a thermodynamics-based physics model.
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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：US20240272104A1
公开(公告)日：2024-08-15
申请号：US18169639
申请日：2023-02-15
发明人： Salah Mohammed Al-Ofi , Guodong Jin , Shouxiang Ma
CPC分类号： G01N27/026 , E21B49/08
摘要： A method of analyzing a downhole fluid includes performing measurements of a dielectric property of the downhole fluid, the downhole fluid including a mixture of a filtrate fluid circulated through a borehole and a connate fluid. The measurements include a first measurement of the downhole fluid, and one or more additional measurements, each additional measurement performed after an amount of the filtrate fluid is injected into the downhole fluid to change the volume ratio, each additional measurement performed when the downhole fluid has a different volume ratio. The method also includes acquiring a plurality of reference profiles of respective reference mixtures, the respective reference mixtures including a first fluid and a reference fluid, comparing the measurements to each reference profile, and estimating a value of the dielectric property of the connate fluid based on the comparing.
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18.发明申请公开(公告)号：US20170328847A1
公开(公告)日：2017-11-16
申请号：US15151896
申请日：2016-05-11
发明人： Gabor Hursan , Shouxiang Ma
CPC分类号： G01N24/081 , G01V3/32 , Y02A90/344
摘要： Provided in some embodiments are systems and methods for determining characteristics of a hydrocarbon reservoir. Embodiments include conducting a nuclear magnetic resonance (NMR) logging operation of a targeted reservoir section of a wellbore extending into a hydrocarbon reservoir to generate a NMR log of the targeted reservoir section, conducting a resistivity logging of the targeted reservoir section to generate an uninvaded water saturation (Sw) log of the targeted reservoir section, determining for each of a plurality of depths in the section, a T2 cutoff point based on values of the NMR and Sw logs, identifying a subset of the T2 cutoff points that exhibit a hyperbolic trend, determining a theoretical cutoff curve corresponding to the subset of the T2 cutoff points, determining a free water level (FWL) of the reservoir based on the theoretical cutoff curve, and determining a rock type of the reservoir based on the theoretical cutoff curve.
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公开(公告)号：US20170103144A1
公开(公告)日：2017-04-13
申请号：US14878283
申请日：2015-10-08
发明人： Mohammed Badri , Shouxiang Ma , Ping Zhang , Wael Abdallah
IPC分类号： G06F17/50
CPC分类号： G06F17/5004 , E21B7/04 , E21B43/00 , E21B47/02 , G01V1/302 , G01V11/005 , G01V2210/66 , G01V2210/667
摘要： Well trajectory adjustment is provided. In one possible implementation, an initial 3D model of a portion of a formation in which a well is being drilled is accessed. Subsurface data associated with the formation is then used to tune the initial 3D model to create a revised 3D model. In another possible implementation, subsurface data associated with a formation in which a well is being drilled is used to tune an initial 3D model of the formation to create a revised 3D model. An initial planned trajectory of the well can also be adjusted to reach a sweet spot in the revised 3D model.
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20.发明申请公开(公告)号：US20230100983A1
公开(公告)日：2023-03-30
申请号：US17950216
申请日：2022-09-22
发明人： Shouxiang Ma , Guodong Jin , Ryan Antle , Fei Le , Salah M Al-Ofi
摘要： A system for analysis of isolated and connected porosities of a porous formation using permittivity is disclosed. An electrical subsystem can provide electrical signals for one or more of the porous formation or a representation of the porous formation; and the system can determine one or more of a rate of permittivity change (RPC) or permittivity ratio (PR) from a first estimation model that relates permittivity measurements and frequencies that are associated with the electrical signals, so that the system can generate a second estimation model using one or more of the RPC or the PR, associated with the isolated and connected porosities, where the second estimation model can be used with a total porosity of the porous formation to estimate or predict an isolated porosity and a connected porosity of a production porous formation.
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