Patents Assigned to Beijing Huamei, Inc.
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Patent number: 11702891Abstract: The force modulation system for a drill bit includes a cutter, a holder, a holder retention device, and a first force member made of a first woven material. The cutter fits in the holder, and the holder fits in the drill bit. The holder retention device exerts a holder retention force in a first direction. The first force member exerts a first force in a second direction. The second direction is angled offset to the first direction so as that a cutting profile of the force modulation system is variable. There can also be a second force member of a second woven material to exert a second force in the first direction for more variability of the cutting profile in the first direction. The second force member can be made integral with the first force member, including the first woven material and the second woven material being the same material.Type: GrantFiled: July 19, 2021Date of Patent: July 18, 2023Assignees: CNPC USA Corporation, Beijing Huamei Inc. CNPCInventors: Lei Zhao, Ming Zhang, Chris Cheng, Jiaxiang Ren, Chengxi Li
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Publication number: 20230193119Abstract: A hydraulic fracture fluid is provided. The fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. The liquid reacts to form proppant in-situ under downhole conditions.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Applicants: CNPC USA Corporation, Beijing Huamei, Inc., China National Petroleum CorporationInventors: Lijun Lin, Jiangshui Huang, Litao Bai, Stephanie Yu, Fuchen Liu, Congbin Yin, Wei Gong
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Patent number: 11649395Abstract: Some reservoirs have tight oil formations, such as the Changqing reservoir. The surfactant polymer flooding and low tension gas flooding are two potential chemical flooding methods for use in tight oil formations. In these methods, an oil displacement agent, or surfactant, is added. Nonionic surfactants with extended chains (by propylene oxide and ethylene oxide) from dialkyl alcohols or dialkyl amines were tested. A synergistic blend of surfactants was developed between the nonionic surfactants and anionic surfactants that lowers interfacial tension and improves surfactant solubility in water and oil.Type: GrantFiled: June 17, 2020Date of Patent: May 16, 2023Assignees: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Nancy Chun Zhou, Fuchen Liu
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Publication number: 20230069858Abstract: A novel surfactant composition that comprises of two surfactant components, a solvent, and water. The surfactant composition is added to a fracturing fluid, which is then pumped downhole into a subterranean formation where the novel characteristics of the fracturing fluid lend to improved oil production over the fracturing fluid without the surfactant composition.Type: ApplicationFiled: November 15, 2022Publication date: March 9, 2023Applicants: CNPC USA CORPORATION, Beijing Huamei, Inc.Inventors: Jiangshui HUANG, Nancy ZHOU, Lijun LIN, Fuchen LIU, Guodong WU, Bo HUANG
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Patent number: 11591858Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, a plurality of blades with pockets to accommodate the cutters respectively. Each of the plurality of cutters has an ultra-hard layer, two side facets extending obliquely inward from the substrate to a top surface of the ultra-hard layer, a convex portion between the two side facets. The convex portion comprises a transition surface and the transitional surface is convex as it extends between adjacent the two side facets. The curvature of the transitional surface varies along the cutter axis with the curvature at the cutting edge larger than the curvature of the cutter circumferential surface.Type: GrantFiled: December 11, 2020Date of Patent: February 28, 2023Assignees: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Jiaqing Yu, Chris X. Cheng, Jianhua Guo, Bo Zhou, Shijun Qiao, Chuang Zhang, Xu Wang, Chi Ma, Xiongwen Yang
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Publication number: 20230058884Abstract: A polyacrylamide friction reducer wherein the friction reducer contains surfactant functional groups, and wherein the polyacrylamide friction reducer is degradable, can be used for multi-functional, slickwater fracturing fluid projects. Under downhole conditions, the polymer degrades and releases the surfactant molecules to act as oil displacing agent to provide additional stimulation.Type: ApplicationFiled: August 10, 2022Publication date: February 23, 2023Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Fuchen LIU, Jianshen LI, Lijun LIN, Jiangshui HUANG, Genyao LIN, Lulu SONG, Stephanie YU
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Publication number: 20230046909Abstract: Some reservoirs have tight oil formations, such as the Changqing reservoir. The surfactant polymer flooding and low tension gas flooding are two potential chemical flooding methods for use in tight oil formations. In these methods, an oil displacement agent, or surfactant, is added. Nonionic surfactants with extended chains (by propylene oxide and ethylene oxide) from dialkyl alcohols or dialkyl amines were tested. A synergistic blend of surfactants was developed between the nonionic surfactants and anionic surfactants that lowers interfacial tension and improves surfactant solubility in water and oil.Type: ApplicationFiled: October 28, 2022Publication date: February 16, 2023Applicants: CNPC USA Corporation, Beijing Huamei, Inc.Inventors: Nancy Chun Zhou, Fuchen Liu
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Patent number: 11578261Abstract: The disclosed hydraulic fracturing fluid can include a liquid solvent, one or more surfactants, a proppant-forming compound, and one or more curing agents. When injected into a wellbore, the hydraulic fracturing fluid reacts to form proppant pillars in-situ under downhole conditions. The proppant pillars are capable of maintaining conductive fractures.Type: GrantFiled: July 20, 2020Date of Patent: February 14, 2023Assignees: CNPC USA Corporation, Beijing Huamei, Inc., China National Petroleum CorporationInventors: Lijun Lin, Jiangshui Huang, Litao Bai, Stephanie Yu, Fuchen Liu, Congbin Yin, Wei Gong
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Publication number: 20230029914Abstract: Nano- and micro-particles (NMP) can be formed from an oil/water emulsion. The emulsion is made by mixing a liquid solvent, at least one surfactant, a particle-forming compound, and at least curing agent. If desired, pH control agents and viscosity enhancers can be added to the liquid solvent. The particle-forming compound and the curing agents are mixed together and form the oil phase in the emulsion and after curing, the particles are formed. The nano- and micro-particles can be used as proppant to enhance the conductivity of nano- and microfractures and fluid-loss-control additive for hydraulic fracturing operations.Type: ApplicationFiled: September 30, 2022Publication date: February 2, 2023Applicants: CNPC USA Corporation, Beijing Huamei Inc., China National Petroleum CorporationInventors: Lijun Lin, Jiangshui Huang, Fuchen Liu, Lulu Song, Zhenzhou Yang, Yu Liu, Hanxiao Wang
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Patent number: 11566090Abstract: Co-cured blends of fluoroelastomers of tetrafluoroethylene-propylene copolymer with cure site monomer and terpolymers of Vinylidene fluoride (VDF), Hexafluoropropylene (HFP) and Tetrafluoroethylene (TFE) with peroxide as initiator and coagent TAIC as crosslinker show improved curing performance, improved mechanical properties and improved compression set as well. The co-cured fluoroelastomers show improved chemical resistance to the solvent aging systems and better retention of mechanical properties after aging at high temperature in the solvents system.Type: GrantFiled: February 19, 2020Date of Patent: January 31, 2023Assignees: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Peixiang Xing, Jiaxiang Ren, Peng Cheng, Yu Liu, Yonghong Wang
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Patent number: 11566097Abstract: A chemical composition for a degradable polymeric material includes an isocyanate terminated polyester prepolymer, including prepolymer units as a main chain with a plurality of isocyanates at ends of the main chain, and a cross-linking agent. The isocyanate terminated polyester prepolymer has a structural formula as follows: ONC—R?—NH—[—CO—R—R??-]n-NH—R?—CNO, wherein R?? is selected from a group consisting of —O— and —CO—O—R?—O—, wherein R, R? and R? are an aryl group or alkyl group and wherein n is a number of prepolymer units corresponding to length of the main chain. The composition degrades at a rate and at a delay depending on temperature and the composition for a component of a downhole tool. The composition has strength and elasticity for a component of a downhole tool.Type: GrantFiled: February 13, 2020Date of Patent: January 31, 2023Assignees: CNPC USA CORP., BEIJING HUAMEI INC.Inventors: Jiaxiang Ren, Peng Cheng, Xu Wang
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Patent number: 11499378Abstract: The force modulation system for a drill bit includes a cutter, a blade cap, a cap retention device, and a first force member. The cutter or cutters fit in the blade cap, and the blade cap fits to the drill bit. The cap retention device exerts a cap retention force in a first direction. The first force member exerts a first force in a second direction. The cutting profile of the force modulation system is now variable in more than one direction so as to avoid excessive forces from more than one direction for each cutter on the blade cap. There can also be a second force member to exert a second force in the first direction for more variability of the cutting profile in the first direction and a third force member to exert a third force in an opposite second direction.Type: GrantFiled: November 21, 2020Date of Patent: November 15, 2022Assignees: CNPC USA Corporation, Beijing Huamei Inc CNPCInventors: Ming Zhang, Chris Cheng, Jiaqing Yu, Qi Peng, Xiaohua Ke
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Patent number: 11499091Abstract: A novel surfactant composition that comprises of two surfactant components, a solvent, and water. The surfactant composition is added to a fracturing fluid, which is then pumped downhole into a subterranean formation where the novel characteristics of the fracturing fluid lend to improved oil production over the fracturing fluid without the surfactant composition.Type: GrantFiled: September 15, 2020Date of Patent: November 15, 2022Assignees: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Jiangshui Huang, Nancy Zhou, Lijun Lin, Fuchen Liu, Guodong Wu, Bo Huang
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Patent number: 11459502Abstract: Nano- and micro-particles (NMP) can be formed from an oil/water emulsion. The emulsion is made by mixing a liquid solvent, at least one surfactant, a particle-forming compound, and at least curing agent. If desired, pH control agents and viscosity enhancers can be added to the liquid solvent. The particle-forming compound and the curing agents are mixed together and form the oil phase in the emulsion and after curing, the particles are formed. The nano- and micro-particles can be used as proppant to enhance the conductivity of nano- and microfractures and fluid-loss-control additive for hydraulic fracturing operations.Type: GrantFiled: January 4, 2019Date of Patent: October 4, 2022Assignees: CNPC USA Corporation, Beijing Huamei Inc.Inventors: Lijun Lin, Jiangshui Huang, Fuchen Liu, Lulu Song, Zhenzhou Yang, Yu Liu, Hanxiao Wang
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Patent number: 11401749Abstract: A cutting element comprises a cylindrical substrate, a table bonded to the substrate, a working surface on the top of the table, and a plurality of dimples on the working surface. The table is made of super-abrasive material. The super-abrasive material can be PCD. Surface patterns of the table can reduce contact friction between the rock and the cutting element. Therefore, heat on the table can be reduced and thermal damage to the table is decreased. This results in improved cutting element service life.Type: GrantFiled: June 30, 2020Date of Patent: August 2, 2022Assignees: CNPC USA CORPORATION, Beijing Huamei Inc.Inventors: Chris Cheng, Jiaqing Yu, Jianhua Guo, Jie Li, Xihui Hu, Yonghong Wang
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Patent number: 11365589Abstract: A cutting element comprising a cylindrical substrate; a table bonded to the cylindrical substrate; at least one tooth with a reduced projected cutting area on a periphery of the table; and a plurality of undulating cutting ridges on a top of the table. The table can have a working surface and at least one lateral surface, and a chamfer formed therebetween. The working surface can be a non-planar working surface. For a given weight on the bit, the cutter will sink into the rock deeper which can lead to better stability and more effective rock removal.Type: GrantFiled: July 1, 2020Date of Patent: June 21, 2022Assignees: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATIONInventors: Chris Cheng, Jiaqing Yu, Xu Wang, Xiongwen Yang, Yu Liu
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Publication number: 20220098472Abstract: Disclosed herein are breaking additives and methods for use with synthetic polymer-type fracturing fluids. Compared with polysaccharide-type gelling agents, such as guar and guar derivatives, synthetic-polymers such as polyacrylamide-type gelling agents are more difficult to break using common oxidizing breakers because their backbones are composed of strong carbon-carbon bonds.Type: ApplicationFiled: September 29, 2020Publication date: March 31, 2022Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Lulu Song, David Schreckengost
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Publication number: 20220081611Abstract: Disclosed herein is a crosslinked HPG fluid system using a very low concentration of HPG polymer. The fluid system is able to be used at low HPG concentrations while maintaining stable viscosity for over two hours at elevated temperatures.Type: ApplicationFiled: September 16, 2020Publication date: March 17, 2022Applicants: CNPC USA Corporation, BEIJING HUAMEI INC.Inventors: Lijun LIN, CHUANXIN ZHANG, GUODONG WU, BO HUANG, STEPHANIE YU
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Publication number: 20220081609Abstract: Disclosed herein is a novel surfactant composition that will aid in increasing the productivity of oil-bearing subterranean formations. The composition comprises of two surfactant components, a solvent, and water. The surfactant composition is added to a fracturing fluid, which is then pumped downhole into a subterranean formation where the novel characteristics of the fracturing fluid lend to improved oil production over the fracturing fluid without the surfactant composition.Type: ApplicationFiled: September 15, 2020Publication date: March 17, 2022Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Jiangshui HUANG, Nancy ZHOU, Lijun LIN, Fuchen LIU, Guodong WU, Bo HUANG
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Publication number: 20220003046Abstract: A drill bit for cutting formation comprises a bit body, a plurality of cutters, and a plurality of blades with pockets to accommodate the cutters, respectively. Each of the plurality of cutters has a substrate, an ultra-hard layer, an inclined surface on the top of the ultra-hard layer, wherein the inclined surface slants downward from a cutting edge to a trailing edge. The cutter can improve cutting efficiency and service life.Type: ApplicationFiled: May 26, 2021Publication date: January 6, 2022Applicants: CNPC USA CORPORATION, BEIJING HUAMEI INC.Inventors: Jiaqing YU, Chris Cheng, Xu Wang, Ming Yi, Chi Ma