Patents by Inventor Dongqing Cao
Dongqing Cao 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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Patent number: 11906417Abstract: The systems and method described in this specification relate to at least partially restoring porosity and brine permeability of carbonate core samples. The systems and methods include extracting a carbonate core sample from a subterranean formation. The extracted carbonate core sample is inserted into a core flooding test machine. A first porosity and a first brine permeability of the extracted carbonate core sample is measured. A fluid is pumped through the extracted carbonate core sample to flood the carbonate core sample. The fluid includes at least one of a high-molecular weight polymer solution and a gel particle solution. The systems and methods include at least partially restoring the porosity and the brine permeability of the carbonate core sample by pumping an oxidizing solution through the flooded carbonate core sample and heating the carbonate core sample to a temperature of at least 60° C. after pumping the oxidizing solution through the carbonate core sample.Type: GrantFiled: January 5, 2022Date of Patent: February 20, 2024Assignee: Saudi Arabian Oil CompanyInventors: Ying Wang, Ming Han, Dongqing Cao, Jinxun Wang
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Patent number: 11867039Abstract: A method for enhanced oil recovery in a reservoir is provided. The method includes injecting a microsphere suspension, including polymeric microspheres dispersed in seawater, into an injection well in the reservoir and injecting a low salinity tailored water (SmartWater) into the injection well in the reservoir. Oil is produced from a production well in the reservoir.Type: GrantFiled: January 7, 2022Date of Patent: January 9, 2024Assignee: Saudi Arabian Oil CompanyInventors: Subhash Chandrabose Ayirala, Dongqing Cao, Ming Han, Saleh Hamad Al-Salah, Ali Yousef
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Patent number: 11795374Abstract: A surfactant composition is provided. The composition includes chemical structure represented by Formula (1): where R1 represents a hydrocarbon group, a substituted hydrocarbon group, an alkyl ester group, or an alkyl amine having from 4 to 28 carbon atoms, and R2 and R3 represent hydrocarbon groups having from 1 to 5 carbon atoms. Also provided is a composition including a brine comprising a total salinity of at least 20,000 mg/L and the chemical structure shown in Formula (1). Methods of making a composition including the chemical structure represented by Formula (1) are also provided.Type: GrantFiled: September 30, 2021Date of Patent: October 24, 2023Assignee: SAUDI ARABIAN OIL COMPANYInventors: Xuan Zhang, Ming Han, Jinxun Wang, Dongqing Cao
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Publication number: 20230220754Abstract: A method for enhanced oil recovery in a reservoir is provided. The method includes injecting a microsphere suspension, including polymeric microspheres dispersed in seawater, into an injection well in the reservoir and injecting a low salinity tailored water (SmartWater) into the injection well in the reservoir. Oil is produced from a production well in the reservoir.Type: ApplicationFiled: January 7, 2022Publication date: July 13, 2023Inventors: Subhash Chandrabose Ayirala, Dongqing Cao, Ming Han, Saleh Hamad Al-Salah, Ali Yousef
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Publication number: 20230212943Abstract: The systems and method described in this specification relate to at least partially restoring carbonate core samples. The systems and methods include extracting a carbonate core sample from a subterranean formation. The extracted carbonate core sample is inserted into a core flooding test machine. A first brine permeability of the extracted carbonate core sample is measured. A fluid is pumped through the extracted carbonate core sample to flood the carbonate core sample. The fluid includes at least one of a high-molecular weight polymer solution and a gel particle solution. The systems and methods include at least partially restoring the porosity and the brine permeability of the flooded carbonate core sample by pumping an oxidizing solution through the carbonate core sample and heating the carbonate core sample to a temperature of at least 60° C. after pumping the oxidizing solution through the carbonate core sample.Type: ApplicationFiled: January 5, 2022Publication date: July 6, 2023Inventors: Ying Wang, Ming Han, Dongqing Cao, Jinxun Wang
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Publication number: 20230102729Abstract: A surfactant composition is provided. The composition includes chemical structure represented by Formula (1): where R1 represents a hydrocarbon group, a substituted hydrocarbon group, an alkyl ester group, or an alkyl amine having from 4 to 28 carbon atoms, and R2 and R3 represent hydrocarbon groups having from 1 to 5 carbon atoms. Also provided is a composition including a brine comprising a total salinity of at least 20,000 mg/L and the chemical structure shown in Formula (1). Methods of making a composition including the chemical structure represented by Formula (1) are also provided.Type: ApplicationFiled: September 30, 2021Publication date: March 30, 2023Applicants: ARAMCO FAR EAST (BEIJING) BUSINESS SERVICES CO., LTD., SAUDI ARABIAN OIL COMPANYInventors: Xuan Zhang, Ming Han, Jinxun Wang, Dongqing Cao
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Patent number: 11254855Abstract: Surfactant mixtures include a cationic surfactant, an anionic surfactant, and a nonionic surfactant in a brine solution. The cationic surfactant may include at least one quaternary ammonium, at least one brominated trimethylammonium, or combinations thereof. The anionic surfactant may include at least one organosulfate. The nonionic surfactant may include the nonionic surfactant comprised of a polyoxyethylene fatty acid ester, a phenylated ethoxylate, or combinations thereof. The surfactant mixtures may be incorporated into methods for reducing the interfacial tension between the surfactant mixture and oily fluids during chemical enhanced oil recovery. The methods for reducing the interfacial tension may include introducing the surfactant mixture comprising a cationic surfactant, an anionic surfactant, and a nonionic surfactant in a brine solution to a hydrocarbon-bearing reservoir, thereby reducing the interfacial tension at a liquid-liquid interface of the surfactant mixture and the fluid.Type: GrantFiled: November 14, 2019Date of Patent: February 22, 2022Assignee: Saudi Arabian Oil CompanyInventors: Limin Xu, Ming Han, Alhasan Fuseni, Dongqing Cao
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Publication number: 20210147744Abstract: Surfactant mixtures include a cationic surfactant, an anionic surfactant, and a nonionic surfactant in a brine solution. The cationic surfactant may include at least one quaternary ammonium, at least one brominated trimethylammonium, or combinations thereof. The anionic surfactant may include at least one organosulfate. The nonionic surfactant may include the nonionic surfactant comprised of a polyoxyethylene fatty acid ester, a phenylated ethoxylate, or combinations thereof. The surfactant mixtures may be incorporated into methods for reducing the interfacial tension between the surfactant mixture and oily fluids during chemical enhanced oil recovery. The methods for reducing the interfacial tension may include introducing the surfactant mixture comprising a cationic surfactant, an anionic surfactant, and a nonionic surfactant in a brine solution to a hydrocarbon-bearing reservoir, thereby reducing the interfacial tension at a liquid-liquid interface of the surfactant mixture and the fluid.Type: ApplicationFiled: November 14, 2019Publication date: May 20, 2021Applicant: Saudi Arabian Oil CompanyInventors: Limin Xu, Ming Han, Alhasan Fuseni, Dongqing Cao
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Patent number: 10927290Abstract: An imbibition gel composition that induces spontaneous imbibition of a water phase into a reservoir matrix is provided. The imbibition gel composition including a surfactant, the surfactant operable to alter the wettability of a surface of a reservoir matrix from oil-wet toward water-wet and the surfactant further operable to diffuse through the water phase. The imbibition gel composition further including a gel system, the gel system operable to retain the surfactant and the gel system further operable to release the surfactant in the presence of the water phase, where altering the wettability of the surface of the reservoir matrix toward water-wet induces the spontaneous imbibition of the water phase into the reservoir matrix.Type: GrantFiled: September 16, 2016Date of Patent: February 23, 2021Inventors: Ming Han, Jinxun Wang, Dongqing Cao, Abdullah Al-Boqmi, Amar J. Alshehri
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Patent number: 10649157Abstract: A freeform DOE for use in an optical transmitter and a method of designing and manufacturing the DOE are provided. The freeform DOE is capable of achieving the same, or nearly the same, functionality as that of a glass DOE, but has a design that has been transformed to make the surface profile of the DOE compatible with a molding process that can be used to manufacture the DOE with high quality at low costs. The method of designing and manufacturing the DOE includes preselecting a CGH that will obtain a target freeform DOE design, using a preselected smoothing function to smooth the surface profile of the target freeform DOE design to transform the design into a DOE design that is compatible with a molding process, and using a fabrication process to manufacture a freeform DOE that is based on the transformed DOE design.Type: GrantFiled: August 17, 2018Date of Patent: May 12, 2020Assignee: Foxconn Interconnect Technology LimitedInventors: Dongqing Cao, Ye Chen, Bing Shao, Andrew Schmit, Li Ding
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Publication number: 20200057213Abstract: A freeform DOE for use in an optical transmitter and a method of designing and manufacturing the DOE are provided. The freeform DOE is capable of achieving the same, or nearly the same, functionality as that of a glass DOE, but has a design that has been transformed to make the surface profile of the DOE compatible with a molding process that can be used to manufacture the DOE with high quality at low costs. The method of designing and manufacturing the DOE includes preselecting a CGH that will obtain a target freeform DOE design, using a preselected smoothing function to smooth the surface profile of the target freeform DOE design to transform the design into a DOE design that is compatible with a molding process, and using a fabrication process to manufacture a freeform DOE that is based on the transformed DOE design.Type: ApplicationFiled: August 17, 2018Publication date: February 20, 2020Inventors: Dongqing Cao, Ye Chen, Bing Shao, Andrew Schmit, Li Ding
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Patent number: 10536406Abstract: Embodiments of the present invention disclose a data transmission method and apparatus, and an in-vehicle terminal. The data transmission method includes: obtaining, by a first terminal, transmission data by using a first application, the transmission data being data corresponding to a to-be-played file; obtaining, by the first terminal, an address of a first server by using the first application, the first server being a server configured to provide an online play service to a second terminal; and according to the address of the first server, sending, by the first terminal using the first application, the transmission data to the first server by using a second server, the second server being a server of the first application.Type: GrantFiled: April 13, 2018Date of Patent: January 14, 2020Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITEDInventors: You Gong, Zhaolong Li, Fei Cao, Dongqing Cao, Feng Wang
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Publication number: 20190089944Abstract: An imager may include depth sensing pixels that receive and convert incident light into image signals. The imager may have an associated imaging lens that focuses the incident light onto the imager. Each of the depth sensing pixels may include a microlens that focuses incident light received from the imaging lens through a color filter onto first and second photosensitive regions of a substrate. The first and second photosensitive regions may provide different and asymmetrical angular responses to incident light. Depth information for each depth sensing pixel may be determined based on the difference between output signals of the first and second photosensitive regions of that depth sensing pixel. Color information for each depth sensing pixel may be determined from a summation of output signals of the first and second photosensitive regions.Type: ApplicationFiled: October 30, 2018Publication date: March 21, 2019Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Gennadiy AGRANOV, Dongqing CAO, Hirofumi KOMORI
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Patent number: 10158843Abstract: An imager may include depth sensing pixels that receive and convert incident light into image signals. The imager may have an associated imaging lens that focuses the incident light onto the imager. Each of the depth sensing pixels may include a microlens that focuses incident light received from the imaging lens through a color filter onto first and second photosensitive regions of a substrate. The first and second photosensitive regions may provide different and asymmetrical angular responses to incident light. Depth information for each depth sensing pixel may be determined based on the difference between output signals of the first and second photosensitive regions of that depth sensing pixel. Color information for each depth sensing pixel may be determined from a summation of output signals of the first and second photosensitive regions.Type: GrantFiled: December 12, 2016Date of Patent: December 18, 2018Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Gennadiy Agranov, Dongqing Cao, Hirofumi Komori
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Publication number: 20180288398Abstract: Depth sensing imaging pixels include pairs of left and right pixels forming an asymmetrical angular response to incident light. A single microlens is positioned above each pair of left and right pixels. Each microlens spans across each of the pairs of pixels in a horizontal direction. Each microlens has a length that is substantially twice the length of either the left or right pixel in the horizontal direction; and each microlens has a width that is substantially the same as a width of either the left or right pixel in a vertical direction. The horizontal and vertical directions are horizontal and vertical directions of a planar image array. A light pipe in each pixel is used to improve light concentration and reduce cross talk.Type: ApplicationFiled: June 5, 2018Publication date: October 4, 2018Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Gennadiy AGRANOV, Dongqing CAO, Avi YARON
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Patent number: 10079256Abstract: A front-side illuminated image sensor with an array of image sensor pixels is provided. Each image pixel may include a photodiode, transistor gate structures, shallow trench isolation structures, and other associated pixel circuits formed in a semiconductor substrate. Buried light shielding structures that are opaque to light may be formed over regions of the substrate to prevent the transistor gate structures, shallow trench isolation structures, and the other associated pixel circuits from being exposed to stray light. Buried light shielding structures formed in this way can help reduce optical pixel crosstalk.Type: GrantFiled: September 23, 2016Date of Patent: September 18, 2018Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Victor Lenchenkov, Dongqing Cao
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Publication number: 20180234364Abstract: Embodiments of the present invention disclose a data transmission method and apparatus, and an in-vehicle terminal. The data transmission method includes: obtaining, by a first terminal, transmission data by using a first application, the transmission data being data corresponding to a to-be-played file; obtaining, by the first terminal, an address of a first server by using the first application, the first server being a server configured to provide an online play service to a second terminal; and according to the address of the first server, sending, by the first terminal using the first application, the transmission data to the first server by using a second server, the second server being a server of the first application.Type: ApplicationFiled: April 13, 2018Publication date: August 16, 2018Inventors: You GONG, Zhaolong LI, Fei CAO, Dongqing CAO, Feng WANG
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Patent number: 10015471Abstract: Depth sensing imaging pixels include pairs of left and right pixels forming an asymmetrical angular response to incident light. A single microlens is positioned above each pair of left and right pixels. Each microlens spans across each of the pairs of pixels in a horizontal direction. Each microlens has a length that is substantially twice the length of either the left or right pixel in the horizontal direction; and each microlens has a width that is substantially the same as a width of either the left or right pixel in a vertical direction. The horizontal and vertical directions are horizontal and vertical directions of a planar image array. A light pipe in each pixel is used to improve light concentration and reduce cross talk.Type: GrantFiled: February 24, 2012Date of Patent: July 3, 2018Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Gennadiy Agranov, Dongqing Cao, Avi Yaron
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Patent number: 10014336Abstract: An imager may include depth sensing pixels that provide an asymmetrical angular response to incident light. The depth sensing pixels may each include a substrate region formed from a photosensitive portion and a non-photosensitive portion. The depth sensing pixels may include mechanisms that prevent regions of the substrate from receiving incident light. Depth sensing pixel pairs may be formed from depth sensing pixels that have different asymmetrical angular responses. Each of the depth sensing pixel pairs may effectively divide the corresponding imaging lens into separate portions. Depth information for each depth sensing pixel pair may be determined based on the difference between output signals of the depth sensing pixels of that depth sensing pixel pair. The imager may be formed from various combinations of depth sensing pixel pairs and color sensing pixel pairs arranged in a Bayer pattern or other desired patterns.Type: GrantFiled: December 11, 2015Date of Patent: July 3, 2018Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Gennadiy Agranov, Dongqing Cao, Junichi Nakamura, Richard Scott Johnson
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Publication number: 20170094260Abstract: An imager may include depth sensing pixels that receive and convert incident light into image signals. The imager may have an associated imaging lens that focuses the incident light onto the imager. Each of the depth sensing pixels may include a microlens that focuses incident light received from the imaging lens through a color filter onto first and second photosensitive regions of a substrate. The first and second photosensitive regions may provide different and asymmetrical angular responses to incident light. Depth information for each depth sensing pixel may be determined based on the difference between output signals of the first and second photosensitive regions of that depth sensing pixel. Color information for each depth sensing pixel may be determined from a summation of output signals of the first and second photosensitive regions.Type: ApplicationFiled: December 12, 2016Publication date: March 30, 2017Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventors: Gennadiy AGRANOV, Dongqing CAO, Hirofumi KOMORI