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1. 发明申请

US20050092526A1 Expandable eccentric reamer and method of use in drilling 有权
标题翻译：膨胀式偏心铰刀及其在钻井中的应用
公开(公告)号：US20050092526A1
公开(公告)日：2005-05-05
申请号：US10701232
申请日：2003-11-03
申请人： Coy Fielder , Gary Wells , Rogerio Silva , William Herben
发明人： Coy Fielder , Gary Wells , Rogerio Silva , William Herben
IPC分类号： E21B10/32 , E21B10/34 , E21B7/28
CPC分类号： E21B10/322
摘要： An expandable eccentric reamer for placement in a drill string up-hole of a conventional drill bit. The reamer blade is actuated by drilling fluid pressure to radially extend to a drill out diameter greater than a pass-through diameter. The reamer body is shaped to have an eccentric outer surface configuration to accommodate the reamer blade therein. The reamer blade acts as a piston arm in response to drilling fluid pressure and moves along a shaft anchored in a hump region that forms an eccentricity in the outer surface configuration of the body. The reamer blade has an outer edge configuration that positions the cutters thereon to prevent them from engaging a casing of a well borehole upon deployment.
摘要翻译：一种用于放置在常规钻头的钻柱上孔中的可扩张式偏心铰刀。钻孔刀片通过钻井液压力来致动，径向延伸到大于通过直径的钻孔直径。铰刀体被成形为具有偏心外表面构造以容纳其中的铰刀刀片。铰刀刀片响应于钻井液压力而作为活塞臂，并且沿着锚定在驼峰区域中的轴移动，所述隆起区域在主体的外表面构型中形成偏心。铰刀刀片具有将切割器定位在其上的外边缘构造，以防止它们在展开时与井眼的壳体接合。

2. 发明授权

US4982801A Flexible coupling for downhole motor 失效
标题翻译：井下电机柔性联轴器
公开(公告)号：US4982801A
公开(公告)日：1991-01-08
申请号：US293514
申请日：1989-01-04
申请人： Mark D. Zitka , Gary Wells
发明人： Mark D. Zitka , Gary Wells
IPC分类号： E21B4/02 , E21B17/05 , E21B17/20 , F16D3/26 , F16D3/44
CPC分类号： E21B17/05 , E21B4/02 , F16D3/26 , F16D3/44
摘要： A flexible coupling for use in a down-hole motor assembly such as a positive displacement moineau motor is presented. The flexible coupling includes two sets of flexible joints. Each joint consists of two cylindrically shaped slipper couplings angularly offset by 90 degrees. Each slipper coupling is comprised of mating male and female members which are joined together by ball bearings positioned in arcuate grooves located along the cylindrical mating surface.
摘要翻译：提出了一种用于井下电动机组件（如正排量马力）的柔性联轴器。柔性联轴器包括两组柔性接头。每个接头由两个圆柱形的滑动接头组成，角度偏移90度。每个拖鞋联轴器由配合的公和母构件组成，这些构件通过位于沿圆柱形配合表面定位的弧形槽中的球轴承连接在一起。

3. 发明申请

US20060096786A1 Re-settable locking mechanism for downhole tools 审中-公开
标题翻译：井下工具可重新设定的锁定机构
公开(公告)号：US20060096786A1
公开(公告)日：2006-05-11
申请号：US10971865
申请日：2004-10-21
申请人： Gary Wells
发明人： Gary Wells
IPC分类号： E21B10/34
CPC分类号： E21B7/067 , E21B10/322
摘要： The present invention generally comprises a tubular body which is adapted to be attached to a drill string, where the body defines a bore therethrough which accommodates a piston slidably disposed between a first and second position. This piston is aligned generally normally respect to an actuating piston and an expandable tool. This piston is actuated by hydraulic pressure which moves the piston from a first, biased position to a second position where it engages the actuating piston of expandable tool to lock the piston in a locked or closed position. The flow restrictor serves to create a selected time delay before the piston is exposed to an increase in hydraulic pressure within the borehole. In such a fashion, an increase in hydraulic pressure in the borehole will overcome the bias of the piston only where the pressure is maintained for a selected period of time. The hydraulic pressure at which the piston in the locking mechanism overcomes the spring bias is substantially less than the pressure necessary to overcome this spring bias of the piston and the expandable tool.
摘要翻译：本发明通常包括管状体，其适于附接到钻柱，其中主体限定穿过其中的孔，其容纳可滑动地设置在第一和第二位置之间的活塞。该活塞通常大体上相对于致动活塞和可扩展工具对齐。该活塞由液压驱动，其将活塞从第一偏压位置移动到第二位置，在该位置，活塞接合可膨胀工具的致动活塞，以将活塞锁定在锁定或关闭位置。限流器用于在活塞暴露于钻孔内的液压增加之前产生选定的时间延迟。以这种方式，钻孔中的液压的增加将克服活塞的偏压，只有在压力保持选定的时间段时。锁定机构中的活塞克服弹簧偏压的液压基本上小于克服活塞和可膨胀工具的弹簧偏压所需的压力。

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