Patents by Inventor Dongliang Zhang
Dongliang Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230184975Abstract: A method may include obtaining seismic data for a geological region of interest. The method may further include determining various velocity semblance values for the geological region of interest using a time window and the seismic data. The method may further include determining, automatically by a computer processor, one or more stacking velocities for the geological region of interest using a traced path based on the velocity semblance values and a path tracing algorithm. The path tracing algorithm may recursively determine an accumulated amplitude array based on the velocity semblance values. The path tracing algorithm may further determine the traced path among the velocity semblance values and the accumulated amplitude array, the traced path corresponding to the one or more stacking velocities. The method may further include generating a velocity model of the geological region of interest using the one or more stacking velocities.Type: ApplicationFiled: December 15, 2021Publication date: June 15, 2023Applicants: SAUDI ARABIAN OIL COMPANY, ARAMCO SERVICES COMPANYInventors: Dongliang Zhang, Yi Luo, Constantinos Tsingas, Tong Wang Fei, Hong Liang
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Publication number: 20230168407Abstract: A method for determining an internal multiple attenuated seismic image is disclosed. The method includes obtaining a seismic dataset composed of a plurality of seismic traces and for each seismic trace determining an internal multiple trace based, at least in part, on a nested truncated correlation and a bounded convolution of the seismic trace with itself. The method further includes determining an internal multiple attenuated seismic trace based, at least in part, on subtracting the internal multiple trace from the seismic trace and combining the internal multiple attenuated seismic trace to form the internal multiple attenuated seismic image. A system including a seismic source, a plurality of seismic receivers, and a seismic processor for executing the method is disclosed.Type: ApplicationFiled: November 30, 2021Publication date: June 1, 2023Applicant: SAUDI ARABIAN OIL COMPANYInventors: Dongliang Zhang, Constantinos Tsingas, Mohammed S. Mubarak, Ferhan Y. Ahmed
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Patent number: 11555480Abstract: The present invention discloses a prestressed-bolted dry-assembled segmental precast hybrid tower with grouting-free, comprising a top steel tower tube, a reverse self-balancing steal-concrete transition section, and a prestressed-bolted dry-assembled segmental precast concrete tower with grouting-free dry fast splicing and a gear reinforced wind turbine foundation; the steel tower tube, the steel-concrete transition section, the concrete tower tube and the hollow wind turbine foundation are integrally connected from top to bottom through a prestressed steel strand system to improve the overall bending resistance of the tower; the upper end of the prestressed steel strands is anchored to the steel-concrete transition section, and the lower end is anchored to the bottom face of the wind turbine foundation corbel; the concrete tower tube is composed of a number of segmental tapered precast concrete tower segments, which are grouting free spliced vertically, and the vertical splicing utilizes positioning pins toType: GrantFiled: December 21, 2020Date of Patent: January 17, 2023Assignee: POWERCHINA HUADONG ENGINEERING CORPORATION LIMITEDInventors: Chunlin Huang, Dongliang Zhang, Qunyi Tang, Xingjian Sun, Jinjun Chen, Weijiang Feng, Huafeng Yu, Kun Fu, Tianhao Li, Fei Wang, Junzhong Xue, Ziteng Peng, Zhongshuai Yuan
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Patent number: 11536865Abstract: Methods and systems for determining an interbed multiple attenuated pre-stack seismic dataset are disclosed. The methods include forming a post-stack seismic image composed of post-stack traces from the pre-stack seismic dataset and identifying a first, second, and third post-stack horizon on each of the post-stack traces. The methods further include for each pre-stack trace, generating a first, second, and third multiple-generator trace based on the first, second and third post-stack horizon and determining a correlation trace based, at least in part, on a correlation between the first multiple-generator trace and the second multiple-generator trace.Type: GrantFiled: November 30, 2021Date of Patent: December 27, 2022Assignee: SAUDI ARABIAN OIL COMPANYInventors: Dongliang Zhang, Ferhan Y. Ahmed, Constantinos Tsingas, Mohammed Mubarak
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Patent number: 11467303Abstract: A system for seismic imaging of a subterranean geological formation, the system includes a receiver configured to obtain seismic data comprising a data volume representing a post-stacked image. The system includes a filtering module configured to: apply frequency-wavenumber (F-K) filter to the data volume extract a negative-dip structure image and apply the frequency-wavenumber (F-K) filter to the data volume extract a positive-dip structure image. The system includes a diffraction rendering module configured to: multiply the positive-dip structure image with the negative-dip structure image and generate a diffraction-enhanced seismic image representing a geological formation of the data volume.Type: GrantFiled: March 9, 2020Date of Patent: October 11, 2022Assignee: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Constantinos Tsingas
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Patent number: 11401288Abstract: A method for preparing a ?-amino phosphonic acid derivative includes: dissolving N-(arylvinyl)benzamide, dialkyl phosphite, manganese acetate, and potassium carbonate in a solvent and reacting at room temperature to obtain (2-benzamido-1-arylvinyl)dialkyl-phosphonate derivative; and hydrolyzing (2-benzamido-1-arylethyl)dialkylphosphonate derivative to obtain ?-amino phosphonic acid derivative. The N-(arylvinyl)benzamide derivative is used as starting material. The raw materials are easy to obtain and are of many different types. A method of preparing ?-aminophosphonic acid derivative includes: dissolving N-(arylvinyl)benzamide, dialkyl phosphite, manganese acetate and potassium carbonate in a solvent, reacting at room temperature to obtain (2-benzamide-1-arylvinyl) dialkyl phosphonate derivative, and then reducing and hydrolyzing the compound to obtain ?-aminophosphonic acid derivative.Type: GrantFiled: January 12, 2021Date of Patent: August 2, 2022Assignee: SOOCHOW UNIVERSITYInventors: Jianping Zou, Dongliang Zhang, Chengkun Li, Guoyu Zhang, Zekun Tao
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Patent number: 11313988Abstract: A system for seismic imaging of a subterranean geological formation uses a two-way imaging condition. A seismic signal is emitted into a subterranean formation and recorded at receiver(s). Source and receiver wavefields are decomposed into respective right-down/left-up and left-down/right-up propagating waves. The right-down/left-up and left-down/right-up direction can be defined along the direction emitted from the source or receiver to corresponding direction in two dimensional (2D) case. An imaging condition for generating both a positive-dip structure image and a negative-dip structure image is the inner product of the wavefields. Applying the sample-by-sample multiplication imaging condition to the opposite dip images, the diffraction energy is retained while the reflection energy is significantly attenuated. The diffraction image can be used to detect faults and fractures in subsurface regions.Type: GrantFiled: December 13, 2019Date of Patent: April 26, 2022Assignee: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Tong Wang Fei, Constantinos Tsingas, Yi Luo
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Patent number: 11275190Abstract: A method of generating diffraction images based on wave equations includes generating a source wavefield and a receiver wavefield. Based on the source wavefield, a first source wavefield propagating in a first direction and a second source wavefield propagating in a second direction are generated. Based on the receiver wavefield, a first receiver wavefield propagating in the first direction and a second receiver wavefield propagating in the second direction are generated. A first seismic image is generated based on the first source wavefield and the first receiver wavefield. A second seismic image is generated based on the second source wavefield and the second receiver wavefield. A final seismic image is generated based on the first seismic image and the second seismic image.Type: GrantFiled: May 16, 2018Date of Patent: March 15, 2022Assignee: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Tong Wang Fei, Constantinos Tsingas, Yi Luo
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Publication number: 20220056884Abstract: The present invention discloses a prestressed-bolted dry-assembled segmental precast hybrid tower with grouting-free, comprising a top steel tower tube, a reverse self-balancing steal-concrete transition section, and a prestressed-bolted dry-assembled segmental precast concrete tower with grouting-free dry fast splicing and a gear reinforced wind turbine foundation; the steel tower tube, the steel-concrete transition section, the concrete tower tube and the hollow wind turbine foundation are integrally connected from top to bottom through a prestressed steel strand system to improve the overall bending resistance of the tower; the upper end of the prestressed steel strands is anchored to the steel-concrete transition section, and the lower end is anchored to the bottom face of the wind turbine foundation corbel; the concrete tower tube is composed of a number of segmental tapered precast concrete tower segments, which are grouting free spliced vertically, and the vertical splicing utilizes positioning pins toType: ApplicationFiled: December 21, 2020Publication date: February 24, 2022Inventors: Chunlin HUANG, Dongliang ZHANG, Qunyi TANG, Xingjian SUN, Jinjun CHEN, Weijiang FENG, Huafeng YU, Kun FU, Tianhao LI, Fei WANG, Junzhong XUE, Ziteng PENG, Zhongshuai YUAN
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Publication number: 20210278558Abstract: A system for seismic imaging of a subterranean geological formation, the system includes a receiver configured to obtain seismic data comprising a data volume representing a post-stacked image. The system includes a filtering module configured to: apply frequency-wavenumber (F-K) filter to the data volume extract a negative-dip structure image and apply the frequency-wavenumber (F-K) filter to the data volume extract a positive-dip structure image. The system includes a diffraction rendering module configured to: multiply the positive-dip structure image with the negative-dip structure image and generate a diffraction-enhanced seismic image representing a geological formation of the data volume.Type: ApplicationFiled: March 9, 2020Publication date: September 9, 2021Applicant: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Constantinos Tsingas
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Publication number: 20210221831Abstract: Disclosed are a trifluoromethyl alkenylphosphonate derivative and preparation method therefor. The preparation method comprises the following steps: dissolving an acetylene derivative, an iodine compound, and a phosphorus reagent in a solvent for reaction at the temperature from the room temperature to 100° C. to obtain the trifluoromethyl alkenylphosphonate derivative. In the present invention, the acetylene derivative is used as a starting material, and the raw materials are easily available and diversified; products obtained by using the method of the present invention have various types and can be directly used and also used for other further reactions; moreover, the method disclosed in the present invention has the advantages of short steps, mild reaction conditions, simple reaction operation and post-treatment processes, and high yield, and is suitable for large-scale production.Type: ApplicationFiled: April 9, 2021Publication date: July 22, 2021Inventors: Jianping ZOU, Chengkun LI, Dongliang ZHANG, Zekun TAO, Jianan LI
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Patent number: 11058971Abstract: Disclosed is an oil-water separator for offshore wind farms. The separator is arranged between an oil drain pipe and an accident oil tank, and has a cylindrical structure, and includes an oil storage compartment, a water storage compartment and a partition plate between them. The disclosure can ensure that the accident oil tank is empty under normal operating conditions so that a platform weight is reduced; and an insulation and an electric heating treatments are only performed at the oil-water separator to save insulation project quantity and energy consumption for heating; and a two-stage oil-water separation is achieved in the oil-water separator to avoid mixing oil droplets into water discharged from a water outlet.Type: GrantFiled: August 31, 2018Date of Patent: July 13, 2021Assignee: PowerChina Huadong Engineering Corporation LimitedInventors: Huafeng Yu, Haifeng Qi, Chunlin Huang, Shengxiao Zhao, Qunyi Tang, Zhenzhou Sun, Dongliang Zhang, Jianping Yuan, Xianlin Jia, Wei Lou, Baofeng Zhang
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Patent number: 11041970Abstract: The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for generating Angle Domain Common Image Gathers (ADCIGs). One computer-implemented method includes receiving, at a data processing apparatus, a set of seismic data associated with a subsurface region wherein the set of seismic data includes receiver signal data at a plurality of time steps; for each time step in the plurality of time steps: calculating a receiver wavefield based on the receiver signal data at the respective time step; separating a first direction receiver wavefield and a second direction receiver wavefield of the receiver wavefield using Hilbert transformation of the receiver signal data at the respective time step; and applying an optical flow process on the first direction receiver wavefield to calculate wavefield directions; and generating an Angle Domain Common Image Gather (ADCIG) based on the wavefield directions.Type: GrantFiled: February 14, 2019Date of Patent: June 22, 2021Assignee: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Tong Wang Fei, Yi Luo
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Publication number: 20210181364Abstract: A system for seismic imaging of a subterranean geological formation uses a two-way imaging condition. A seismic signal is emitted into a subterranean formation and recorded at receiver(s). Source and receiver wavefields are decomposed into respective right-down/left-up and left-down/right-up propagating waves. The right-down/left-up and left-down/right-up direction can be defined along the direction emitted from the source or receiver to corresponding direction in two dimensional (2D) case. An imaging condition for generating both a positive-dip structure image and a negative-dip structure image is the inner product of the wavefields. Applying the sample-by-sample multiplication imaging condition to the opposite dip images, the diffraction energy is retained while the reflection energy is significantly attenuated. The diffraction image can be used to detect faults and fractures in subsurface regions.Type: ApplicationFiled: December 13, 2019Publication date: June 17, 2021Applicant: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Tong Wang Fei, Constantinos Tsingas, Yi Luo
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Patent number: 11029431Abstract: The present disclosure describes methods and systems, including computer-implemented methods, computer program products, and computer systems, for generating Angle Domain Common Image Gathers (ADCIGs). One computer-implemented method includes receiving, at a data processing apparatus, a set of seismic data associated with a subsurface region wherein the set of seismic data includes receiver signal data at a plurality of time steps; for each time step in the plurality of time steps: calculating a receiver wavefield based on the receiver signal data at the respective time step; separating a first direction receiver wavefield and a second direction receiver wavefield of the receiver wavefield using Hilbert transformation of the receiver signal data at the respective time step; and applying an optical flow process on the first direction receiver wavefield to calculate wavefield directions; and generating an Angle Domain Common Image Gather (ADCIG) based on the wavefield directions.Type: GrantFiled: February 14, 2019Date of Patent: June 8, 2021Assignee: Saudi Arabian Oil CompanyInventors: Dongliang Zhang, Tong Wang Fei, Yi Luo
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Publication number: 20210130376Abstract: A method for preparing a ?-amino phosphonic acid derivative includes: dissolving N-(arylvinyl)benzamide, dialkyl phosphite, manganese acetate, and potassium carbonate in a solvent and reacting at room temperature to obtain (2-benzamido-1-arylvinyl)dialkyl-phosphonate derivative; and hydrolyzing (2-benzamido-1-arylethyl) dialkylphosphonate derivative to obtain ?-amino phosphonic acid derivative. The N-(arylvinyl) benzamide derivative is used as starting material. The raw materials are easy to obtain and are of many different types. A method of preparing ?-aminophosphonic acid derivative includes: dissolving N-(arylvinyl)benzamide, dialkyl phosphite, manganese acetate and potassium carbonate in a solvent, reacting at room temperature to obtain (2-benzamide-1-arylvinyl) dialkyl phosphonate derivative, and then reducing and hydrolyzing the compound to obtain ?-aminophosphonic acid derivative.Type: ApplicationFiled: January 12, 2021Publication date: May 6, 2021Inventors: Jianping ZOU, Dongliang ZHANG, Chengkun LI, Guoyu ZHANG, Zekun TAO
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Publication number: 20210130377Abstract: The present invention discloses the preparation method of ?-phosphonyl-enamine derivative. The preparation method comprising the following steps: dissolving the enamine derivative, organic phosphine compound, manganese acetate and potassium carbonate in the solvent, reacting at room temperature to obtain the ?-phosphonyl-enamine derivative. The enamine derivative was as the starting material, and the raw materials are easy to obtain and a great many varieties. The various forms of the products obtained therein can be directly applied and can be used in further reactions. The reaction conditions are mild, the reaction speed is high, the reaction operation and the post-treatment process are simple, the production is convenient, and the method is suitable for large-scale production.Type: ApplicationFiled: January 11, 2021Publication date: May 6, 2021Inventors: Jianping ZOU, Dongliang ZHANG, Chengkun LI, Guoyu ZHANG, Zekun TAO
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Patent number: 10770556Abstract: An AlGaN/GaN HEMT based on fluorinated graphene passivation and a manufacturing method thereof. Monolayer graphene (108) is transferred to an AlGaN (104) surface, is treated by using fluoride ions and then is insulated to thereby replace a conventional nitride passivation layer. Then, a high-k material (109) is grown on the graphene (108), and the high-k material (109) and the graphene (108) are jointly used as a gate dielectric for preparing an AlGaN/GaN metal-insulator-semiconductor (MIS) HEMT. Compared with the traditional passivation structure, the graphene (108) has the advantages of small physical thickness (sub-nanometer scale) and low additional threshold voltage. The structure and the method are simple, the effect is remarkable and the application prospect in technical fields of microelectronics and solid-state electronics is wide.Type: GrantFiled: March 4, 2016Date of Patent: September 8, 2020Assignee: SHANGHAI INSTITUTE OF MICROSYSTEM AND INFORMATION TECHNOLOGY, CHINESE ACADEMY OF SCIENCEInventors: Xinhong Cheng, Lingyan Shen, Zhongjian Wang, Duo Cao, Li Zheng, Qian Wang, Dongliang Zhang, Jingjie Li, Yuehui Yu
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Publication number: 20200075651Abstract: The disclosure discloses a method of forming a double-layer color filter device and the structure of the color filter in an image sensor. The method includes: providing a photosensitive unit on a substrate; forming a first color filter layer on the photosensitive unit; etching the first color filter layer, to form a first filter having a first convex contour; and forming a second color filter layer on the first convex contour of the first filter, and etching the second color filter layer, to form a second filter having a second convex contour.Type: ApplicationFiled: July 19, 2019Publication date: March 5, 2020Inventors: DongLiang ZHANG, Kishou KANEKO, XiaoLu HUANG
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Publication number: 20190366238Abstract: Disclosed is an oil-water separator for offshore wind farms. The separator is arranged between an oil drain pipe and an accident oil tank, and has a cylindrical structure, and includes an oil storage compartment, a water storage compartment and a partition plate between them. The disclosure can ensure that the accident oil tank is empty under normal operating conditions so that a platform weight is reduced; and an insulation and an electric heating treatments are only performed at the oil-water separator to save insulation project quantity and energy consumption for heating; and a two-stage oil-water separation is achieved in the oil-water separator to avoid mixing oil droplets into water discharged from a water outlet.Type: ApplicationFiled: August 31, 2018Publication date: December 5, 2019Inventors: Huafeng YU, Haifeng QI, Chunlin HUANG, Shengxiao ZHAO, Qunyi TANG, Zhenzhou SUN, Dongliang ZHANG, Jianping YUAN, Xianlin JIA, Wei LOU, Baofeng ZHANG