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1. 发明授权

US07735549B1 Drillable down hole tool 有权
标题翻译：钻孔工具
公开(公告)号：US07735549B1
公开(公告)日：2010-06-15
申请号：US11800448
申请日：2007-05-03
申请人： Randy W. Nish , Randy A. Jones , Robin Lawson
发明人： Randy W. Nish , Randy A. Jones , Robin Lawson
IPC分类号： E21B23/00 , E21B33/12
CPC分类号： E21B33/1293 , E21B33/134
摘要： A down hole flow control device used in a well bore includes a central mandrel and a packer ring disposed thereon. The packer ring is compressible along a longitudinal axis of the central mandrel to form a seal between the central mandrel and the well bore. Upper and lower slip rings are disposed on the central mandrel and include a plurality of slip segments joined together by fracture regions to form the slip rings. The fracture regions are configured to facilitate longitudinal fractures to break the slip rings into the plurality of slip segments that secure the down hole flow control device in the well bore. The upper and lower slip rings have different fracture regions from one another to induce sequential fracturing with respect to the upper and lower slip rings when an axial load is applied to both the upper slip ring and the lower slip ring.
摘要翻译：在井眼中使用的井下流量控制装置包括设置在其上的中心心轴和封隔器环。封隔器环沿着中心心轴的纵向轴线可压缩以在中心心轴和井眼之间形成密封。上滑环和下滑环设置在中心心轴上并且包括通过断裂区域连接在一起以形成滑环的多个滑动段。断裂区域被构造成便于纵向断裂，以将滑环破裂成将井孔流量控制装置固定在井眼中的多个滑动段。当上滑环和下滑环都施加轴向载荷时，上滑环和下滑环具有彼此不同的断裂区域，以引起相对于上滑环和下滑环的顺序断裂。

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