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1. 发明申请

US20110272139A1 SYSTEM FOR DRILLING A WELLBORE 审中-公开
标题翻译：钻井井筒系统
公开(公告)号：US20110272139A1
公开(公告)日：2011-11-10
申请号：US12599818
申请日：2008-05-15
申请人： Bernardus Johannes Henricus Van Den Brekel , Grigoriy Grinberg , Matthew Martin Shade , Mark Michael Shuster , Antonius Leonardus Wubben , Djurre Hans Zijsling
发明人： Bernardus Johannes Henricus Van Den Brekel , Grigoriy Grinberg , Matthew Martin Shade , Mark Michael Shuster , Antonius Leonardus Wubben , Djurre Hans Zijsling
IPC分类号： E21B17/00 , E21B7/00 , E21B21/00
CPC分类号： E21B17/1007 , C09K8/08 , C09K8/12 , C09K8/20 , C09K8/22 , C10M169/04 , C10M2201/085 , C10M2207/10 , C10M2207/2805 , C10M2207/401 , C10M2219/024 , C10M2223/04 , C10N2230/06 , E21B17/1085
摘要： A system is provided for drilling a borehole into an earth formation, comprising a casing arranged in the borehole, a drill string extending through the interior of the casing to a lower end portion of the borehole, and a body of drilling fluid extending into the casing, the casing having an inner surface susceptible of wear due to frictional contact with an outer surface of the drill string during drilling of the borehole with the drill string. The system further comprises means for reducing wear of the inner surface of the casing, the means including at least one of a hardened layer at the inner surface of the casing, a friction-reducing layer at the outer surface of the drill string, and a lubricating compound contained in the body of drilling fluid.
摘要翻译：提供一种用于将钻孔钻入地层的系统，包括布置在钻孔中的壳体，延伸穿过壳体内部到钻孔的下端部分的钻柱，以及延伸到壳体中的钻井液体壳体具有在与钻柱钻孔期间由于与钻柱的外表面的摩擦接触而易磨损的内表面。该系统还包括用于减小壳体内表面的磨损的装置，该装置包括壳体内表面处的硬化层，钻柱的外表面处的摩擦减小层和包含在钻井液体中的润滑化合物。

2. 发明授权

US08056642B2 Method of radially expanding a tubular element 有权
标题翻译：径向膨胀管状元件的方法
公开(公告)号：US08056642B2
公开(公告)日：2011-11-15
申请号：US12768404
申请日：2010-04-27
申请人： Petrus Cornelis Kriesels , Robert Donald Mack , Mark Michael Shuster
发明人： Petrus Cornelis Kriesels , Robert Donald Mack , Mark Michael Shuster
IPC分类号： E21B19/00
CPC分类号： E21B43/103
摘要： The invention relates to a method of radially expanding a tubular element extending into a wellbore formed in an earth formation, the tubular element including a first layer and a second layer extending around the first layer, said layers being separable from each other. The method comprises inducing each layer to bend radially outward and in an axially reverse direction so as to form an expanded tubular section extending around a remaining tubular section of the tubular element, wherein each layer has a respective bending zone in which the bending occurs, and increasing the length of the expanded tubular section by inducing the respective bending zones of the layers to move in an axial direction relative to the remaining tubular section. The layers in the respective bending zones are separate from each other so as to define an axial space between the layers.
摘要翻译：本发明涉及一种径向扩张管状元件的方法，所述管状元件延伸到形成于地层中的井眼中，所述管状元件包括第一层和围绕所述第一层延伸的第二层，所述层彼此分离。该方法包括诱导每个层径向向外并沿着轴向相反的方向弯曲，以便形成围绕管状元件的剩余管状部分延伸的扩张的管状部分，其中每个层具有弯曲发生的相应的弯曲区域，以及通过使层的相应弯曲区域相对于剩余的管状部分在轴向上移动来增加膨胀的管状部分的长度。各个弯曲区域中的层彼此分离，以便限定层之间的轴向空间。

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