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1. 发明授权

US06378633B1 Drill pipe protector assembly 有权
标题翻译：钻管保护装置
公开(公告)号：US06378633B1
公开(公告)日：2002-04-30
申请号：US09805612
申请日：2001-03-13
申请人： Norman Bruce Moore , Andrew Dale Fuller
发明人： Norman Bruce Moore , Andrew Dale Fuller
IPC分类号： E21B1710
CPC分类号： E21B41/0078 , E21B17/1007 , E21B17/1064
摘要： A drill pipe protector assembly for providing hydraulic lift and improved sliding lubrication to a drill string. The protector defines a tubular sleeve that is attached to a section of drill pipe and resides over the outer diameter of the drill pipe while moving within an associated well casing or well hole. The sleeve is adapted to provide hydraulic lift and sliding lubrication relative to the well casing and thus, increase the proclivity of the drill pipe to slide down the hole while also reducing the development of cutting dams. The sleeve includes a plurality of radially oriented openings which direct drilling mud from the annular space between the sleeve and drill pipe to the annular space between the sleeve and the casing or outer well wall. The sleeve also includes a plurality of wedge shaped longitudinal channels in communication with the radial openings. The channels direct the longitudinal flow of the drilling fluid along the outside of the sleeve to lubricate the outer surface of the sleeve and create hydraulic lift. The sleeve also includes a number of raised curvature surfaces having low coefficient of friction inserts located on the curved surfaces.
摘要翻译：一种钻杆保护器组件，用于提供液压提升和改善对钻柱的滑动润滑。保护器限定了一个管状套管，其连接到钻杆的一部分并且在相关联的井套管或井孔内移动的同时位于钻杆的外径上。该套筒适于提供相对于井套管的液压提升和滑动润滑，因此增加了钻杆向下滑动的倾向，同时也减少了切割坝的发展。套筒包括多个径向定向的开口，其将钻井泥浆从套筒和钻杆之间的环形空间引导到套筒和壳体或外部井壁之间的环形空间。套筒还包括与径向开口连通的多个楔形纵向通道。通道将钻井液的纵向流动沿套筒的外部引导以润滑套筒的外表面并产生液压提升。套筒还包括多个凸起曲率表面，其具有位于曲面上的低摩擦系数的插入件。

2. 发明授权

US06739415B2 Drill pipe protector 有权
标题翻译：钻管保护器
公开(公告)号：US06739415B2
公开(公告)日：2004-05-25
申请号：US10407093
申请日：2003-04-04
申请人： Brian Mitchell , Andrew Dale Fuller , Norman Bruce Moore
发明人： Brian Mitchell , Andrew Dale Fuller , Norman Bruce Moore
IPC分类号： E21B1710
CPC分类号： E21B17/1007 , E21B17/1064 , E21B41/0078
摘要： A drill pipe protector having a tubular sleeve that is attached to a section of drill pipe and resides over the outer diameter of the drill pipe while moving within an associated well casing or well hole. The sleeve has low-friction end pads positioned on the ends of the sleeve to reduce friction between the ends of the sleeve and the end of an adjacent thrust bearing collar used to hold the sleeve in place on the drill pipe.
摘要翻译：一种钻管保护器，其具有连接到钻杆的一部分并且在相关联的井套管或井孔内移动的同时位于钻杆的外径上的管状套筒。套筒具有位于套筒端部的低摩擦端垫，以减小套筒端部与用于将套管保持在钻杆上的适当位置的相邻止推轴承套环的端部之间的摩擦。

3. 发明授权

US07055631B2 Drill pipe protector 有权
公开(公告)号：US07055631B2
公开(公告)日：2006-06-06
申请号：US10812577
申请日：2004-03-30
申请人： Brian Mitchell , Andrew Dale Fuller , Norman Bruce Moore
发明人： Brian Mitchell , Andrew Dale Fuller , Norman Bruce Moore
IPC分类号： E21B17/10
CPC分类号： E21B17/1007 , E21B17/1064 , E21B41/0078
摘要： A drill pipe protector having a tubular sleeve that is attached to a section of drill pipe and resides over the outer diameter of the drill pipe while moving within an associated well casing or well hole. The sleeve has low-friction end pads positioned on the ends of the sleeve to reduce friction between the ends of the sleeve and the end of an adjacent thrust bearing collar used to hold the sleeve in place on the drill pipe.

4. 发明授权

US06250405B1 Drill pipe protector assembly 有权
标题翻译：钻管保护装置
公开(公告)号：US06250405B1
公开(公告)日：2001-06-26
申请号：US09473782
申请日：1999-12-29
申请人： Norman Bruce Moore , Andrew Dale Fuller
发明人： Norman Bruce Moore , Andrew Dale Fuller
IPC分类号： E21B1710
CPC分类号： E21B41/0078 , E21B17/1007 , E21B17/1064
摘要： A drill pipe protector assembly for providing hydraulic lift and improved sliding lubrication to a drill string. The protector defines a tubular sleeve that is attached to a section of drill pipe and resides over the outer diameter of the drill pipe while moving within an associated well casing or well hole. The sleeve is adapted to provide hydraulic lift and sliding lubrication relative to the well casing and thus, increase the proclivity of the drill pipe to slide down the hole while also reducing the development of cutting dams. The sleeve includes a plurality of radially oriented openings which direct drilling mud from the annular space between the sleeve and drill pipe to the annular space between the sleeve and the casing or outer well wall. The sleeve also includes a plurality of wedge shaped longitudinal channels in communication with the radial openings. The channels direct the longitudinal flow of the drilling fluid along the outside of the sleeve to lubricate the outer surface of the sleeve and create hydraulic lift. The sleeve also includes a number of raised curvature surfaces having low coefficient of friction inserts located on the curved surfaces.
摘要翻译：一种钻杆保护器组件，用于提供液压提升和改善对钻柱的滑动润滑。保护器限定了一个管状套管，其连接到钻杆的一部分并且在相关联的井套管或井孔内移动的同时位于钻杆的外径上。该套筒适于提供相对于井套管的液压提升和滑动润滑，因此增加了钻杆向下滑动的倾向，同时也减少了切割坝的发展。套筒包括多个径向定向的开口，其将钻井泥浆从套筒和钻杆之间的环形空间引导到套筒和壳体或外部井壁之间的环形空间。套筒还包括与径向开口连通的多个楔形纵向通道。通道将钻井液的纵向流动沿套筒的外部引导以润滑套筒的外表面并产生液压提升。套筒还包括多个凸起的曲率表面，其具有位于弯曲表面上的低摩擦系数的插入件。

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