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公开(公告)号：US12024575B2
公开(公告)日：2024-07-02
申请号：US18054881
申请日：2022-11-11
发明人： Peixiang Xing , Jiaxiang Ren , Peng Cheng , Yu Liu , Yonghong Wang
IPC分类号： C08F214/00 , C08F214/26 , C08F214/28 , C08K5/14 , C08K5/3492
CPC分类号： C08F214/267 , C08F214/282 , C08K5/14 , C08K5/3492
摘要： 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.
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公开(公告)号：US20210002961A1
公开(公告)日：2021-01-07
申请号：US16917449
申请日：2020-06-30
发明人： Chris Cheng , Jiaqing Yu , Jianhua Guo , Jie Li , Xihui Hu , Yonghong Wang
IPC分类号： E21B10/567 , E21B10/55
摘要： 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.
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公开(公告)号：US11566090B2
公开(公告)日：2023-01-31
申请号：US16795417
申请日：2020-02-19
发明人： Peixiang Xing , Jiaxiang Ren , Peng Cheng , Yu Liu , Yonghong Wang
IPC分类号： C08K5/14 , C08F214/26 , C08K5/3492 , C08F214/28
摘要： 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.
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4.发明申请公开(公告)号：US20170058615A1
公开(公告)日：2017-03-02
申请号：US15248501
申请日：2016-08-26
申请人： CNPC USA CORPORATION
发明人： Zhao Liang , Cheng Xiaomin , Demin Chen , Xiongwen Yang , Yonghong Wang , Yu Liu
IPC分类号： E21B10/567 , E21B10/60
CPC分类号： E21B10/5673
摘要： The present invention provides a convex ridge type non-planar cutting tooth and a diamond drill bit, the convex ridge type non-planar cutting tooth comprises a cylindrical body, the surface of the end portion of the cylindrical body is provided with a main cutting convex ridge and two non-cutting convex ridges, the inner end of the main cutting convex ridge and the inner ends of the two non-cutting convex ridges converge at the surface of the end portion of the cylindrical body, the outer end of the main cutting convex ridge and the outer ends of the two non-cutting convex ridges extend to the outer edge of the surface of the end portion of the cylindrical body, the surfaces of the end portion of the cylindrical body on both sides of the main cutting convex ridge are cutting bevels. The convex ridge type non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, convex ridge type non-planar cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.
摘要翻译： 本发明提供一种凸脊型非平面切割齿和金刚石钻头，所述凸脊型非平面切割齿包括圆柱体，所述圆柱体的端部的表面设置有主切割凸起 脊和两个非切割凸脊，主切割凸脊的内端和两个非切割凸脊的内端在圆柱体的端部的表面处会聚，主切割的外端 两个非切割凸脊的外端部延伸到圆筒体的端部的表面的外缘，主切割凸脊的两侧的圆筒体的端部的表面 正在切割斜面。 凸脊式非平面切削齿和金刚石钻头具有很好的抗冲击和耐滚珠的能力。 根据钻孔成形的特点，不同模式的钻头上设置凸脊型非平面切割齿，可提高钻头的机械速度和镜头。
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公开(公告)号：US10563464B2
公开(公告)日：2020-02-18
申请号：US16155359
申请日：2018-10-09
申请人： CNPC USA CORPORATION
发明人： Javier Davila , Liang Zhao , Xiaomin Cheng , Demin Chen , Xiongwen Yang , Yonghong Wang , Yu Liu
IPC分类号： E21B10/567 , E21B10/42
摘要： The present invention provides non-planar cutting tooth and a diamond drill bit. The non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.
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公开(公告)号：US10125552B2
公开(公告)日：2018-11-13
申请号：US15248501
申请日：2016-08-26
申请人： CNPC USA CORPORATION
发明人： Liang Zhao , Xiaomin Cheng , Demin Chen , Xiongwen Yang , Yonghong Wang , Yu Liu
IPC分类号： E21B10/567
摘要： The present invention provides a convex ridge type non-planar cutting tooth and a diamond drill bit, the convex ridge type non-planar cutting tooth comprises a cylindrical body, the surface of the end portion of the cylindrical body is provided with a main cutting convex ridge and two non-cutting convex ridges, the inner end of the main cutting convex ridge and the inner ends of the two non-cutting convex ridges converge at the surface of the end portion of the cylindrical body, the outer end of the main cutting convex ridge and the outer ends of the two non-cutting convex ridges extend to the outer edge of the surface of the end portion of the cylindrical body, the surfaces of the end portion of the cylindrical body on both sides of the main cutting convex ridge are cutting bevels. The convex ridge type non-planar cutting tooth and the diamond drill bit have great ability of impact resistance and balling resistance. According to the features of drilled formation, convex ridge type non-planar cutting teeth are arranged on the drill bit with different mode, which can improve the mechanical speed and footage of the drill bit.
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