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1. 发明申请

US20170204671A1 EXPANDABLE APPARATUS AND RELATED METHODS 审中-公开
公开(公告)号：US20170204671A1
公开(公告)日：2017-07-20
申请号：US15473239
申请日：2017-03-29
申请人： Baker Hughes Incorporated
发明人： Robert A. Laing , Kelly D. Ireland , Anurag Gautam , Steven R. Radford
IPC分类号： E21B10/32 , E21B34/14
CPC分类号： E21B10/322 , E21B4/00 , E21B4/04 , E21B7/00 , E21B10/32 , E21B17/1014 , E21B34/14 , E21B44/005 , E21B47/18 , E21B2034/007
摘要： An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.

2. 发明申请

US20140353032A1 EXPANDABLE APPARATUS AND RELATED METHODS 有权
标题翻译：可扩展装置及相关方法
公开(公告)号：US20140353032A1
公开(公告)日：2014-12-04
申请号：US14464456
申请日：2014-08-20
申请人： Baker Hughes Incorporated
发明人： Steven R. Radford , Anurag Gautam , Robert A. Laing
IPC分类号： E21B10/32 , E21B17/10 , E21B47/18
CPC分类号： E21B10/322 , E21B4/00 , E21B4/04 , E21B7/00 , E21B10/32 , E21B17/1014 , E21B34/14 , E21B44/005 , E21B47/18 , E21B2034/007
摘要： An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.
摘要翻译：一种用于铰链钻孔的可扩展铰刀装置和方法，其中由管状体承载的横向可移动刀片可以选择性地定位在向内位置和扩张位置。通过刀片偏置元件保持在内侧的可横向移动的刀片可以通过钻取选择性地允许通过设置在管状体内的致动套筒与之连通的流体来向外推动。或者，分离元件可将来自钻井流体的力或压力传递到可动叶片。此外，与可动叶片连通的室可以通过井下涡轮或泵来加压。可扩展铰刀内可以包括脊状密封刮水器，补偿器，可移动轴承瓦块，可动刀片之前的固定轴承瓦块或可调节间隔元件以改变扩大刀片位置。此外，可以产生指示可扩展铰刀的操作特性的钻井液压力响应。

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