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    • 2. 发明申请
    • ULTRA-LOW FRICTION COATINGS FOR DRILL STEM ASSEMBLIES
    • 用于钻杆组合的超低摩擦涂层
    • US20110220415A1
    • 2011-09-15
    • US13042761
    • 2011-03-08
    • Hyun Woo JinSrinivasan RajagopalanAdnan OzekcinTabassumul HaqueMehmet Deniz ErtasBo ZhaoJeffrey Roberts BaileyTerris Field Walker
    • Hyun Woo JinSrinivasan RajagopalanAdnan OzekcinTabassumul HaqueMehmet Deniz ErtasBo ZhaoJeffrey Roberts BaileyTerris Field Walker
    • E21B7/00E21B17/00
    • C23C14/0605C23C14/024C23C16/0272C23C16/26C23C30/005E21B7/046E21B17/1085E21B41/00
    • Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly, a coiled tubing coupled to a bottom hole assembly, or a casing string coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, hardbanding on at least a portion of the exposed outer surface of the body assembly, an ultra-low friction coating on at least a portion of the hardbanding, wherein the ultra-low friction coating comprises one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion, and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.
    • 提供具有超低摩擦涂层的钻杆组件用于跨接钻井操作。 在一种形式中,用于地下旋转钻井操作的涂覆的钻杆组件包括主体组件,其具有暴露的外表面,其包括联接到底孔组件的钻柱,联接到底孔组件的连续油管或耦合到底孔组件的套管柱 底部孔组件和超低摩擦涂层,其在主体组件的暴露的外表面的至少一部分上,在主体组件的暴露的外表面的至少一部分上的耐磨层,位于主体组件的暴露的外表面上的超低摩擦涂层 至少一部分耐磨带,其中所述超低摩擦涂层包括一个或多个超低摩擦层,以及插入在所述耐磨带和超低摩擦涂层之间的一个或多个护垫层。 本文公开的涂覆的钻杆组件提供在直孔或定向钻孔期间减少的摩擦,振动(粘滑和扭转),磨损和磨损,以允许提高的穿透速率并且能够利用现有顶部驱动器进行超扩展钻井。
    • 5. 发明授权
    • Ultra-low friction coatings for drill stem assemblies
    • 钻杆组件的超低摩擦涂层
    • US08561707B2
    • 2013-10-22
    • US13042761
    • 2011-03-08
    • Hyun Woo JinSrinivasan RajagopalanAdnan OzekcinTabassumul HaqueMehmet Deniz ErtasBo ZhaoJeffrey Roberts BaileyTerris Field Walker
    • Hyun Woo JinSrinivasan RajagopalanAdnan OzekcinTabassumul HaqueMehmet Deniz ErtasBo ZhaoJeffrey Roberts BaileyTerris Field Walker
    • E21B17/10
    • C23C14/0605C23C14/024C23C16/0272C23C16/26C23C30/005E21B7/046E21B17/1085E21B41/00
    • Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly, a coiled tubing coupled to a bottom hole assembly, or a casing string coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, hardbanding on at least a portion of the exposed outer surface of the body assembly, an ultra-low friction coating on at least a portion of the hardbanding, wherein the ultra-low friction coating comprises one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated drill stem assemblies disclosed herein provide for reduced friction, vibration (stick-slip and torsional), abrasion, and wear during straight hole or directional drilling to allow for improved rates of penetration and enable ultra-extended reach drilling with existing top drives.
    • 提供具有超低摩擦涂层的钻杆组件用于跨接钻井操作。 在一种形式中,用于地下旋转钻井操作的涂覆的钻杆组件包括主体组件,其具有暴露的外表面,其包括联接到底孔组件的钻柱,联接到底孔组件的连续油管或耦合到底孔组件的套管柱 底部孔组件和超低摩擦涂层,其在主体组件的暴露的外表面的至少一部分上,在主体组件的暴露的外表面的至少一部分上的耐磨层,位于主体组件的暴露的外表面上的超低摩擦涂层 至少一部分耐磨带,其中所述超低摩擦涂层包括一个或多个超低摩擦层,以及插入在所述耐磨带和超低摩擦涂层之间的一个或多个护垫层。 本文公开的涂覆的钻杆组件提供在直孔或定向钻孔期间减少的摩擦,振动(粘滑和扭转),磨损和磨损,以允许提高的穿透速率并且能够利用现有顶部驱动器进行超扩展钻井。