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1. 发明授权

US07395881B2 Roller subs 有权
标题翻译：辊子
公开(公告)号：US07395881B2
公开(公告)日：2008-07-08
申请号：US11046915
申请日：2005-01-31
申请人： Frederick Duguld McKay , Richard John Gilchrist , Colin Alexander Black
发明人： Frederick Duguld McKay , Richard John Gilchrist , Colin Alexander Black
IPC分类号： E21B17/10
CPC分类号： E21B17/1057
摘要： A roller sub system for reducing friction between a tool string and a wall in a well bore for use in the oil and gas industry. The apparatus has a roller body and wheel sub system, which is configured to have removably mounted wheels of variable diameters. A plurality of different diameter wheel sets are described for mounting on the roller sub axles and orientating the system in the well bore. The wheels are fixed to the roller sub axles through a quick-release mechanism. A single apparatus can thus be employed with different diameter wheels to operate in well bores of variable diameters.
摘要翻译：一种用于减少工具串和井眼中用于石油和天然气工业的井眼之间的摩擦的辊子系统。该装置具有辊主体和轮子系统，其构造成具有可拆卸地安装的可变直径的轮子。描述了多个不同直径的轮组，用于安装在辊子轴上并将系统定向在井眼中。车轮通过快速释放机构固定在滚子轴上。因此，可以使用单个装置，其具有不同直径的车轮以在可变直径的井口中操作。

2. 发明授权

US07510002B2 Apparatus and method for sealing a wellbore 失效
标题翻译：用于密封井眼的装置和方法
公开(公告)号：US07510002B2
公开(公告)日：2009-03-31
申请号：US11070114
申请日：2005-03-02
申请人： Gareth Edward George Brown , Frederick Duguld McKay , Colin Alexander Black
发明人： Gareth Edward George Brown , Frederick Duguld McKay , Colin Alexander Black
IPC分类号： E21B33/06
CPC分类号： E21B33/061
摘要： An improved valve for sealing a wellbore and method of use, in particular for prevention of well blow outs. In one embodiment, the apparatus is designed to seal a well through rotation of rams. The rams may be actuated to seal the well without having to work against full well pressure as fluid volumes in the apparatus housing, which also contains the rams, are preserved. This functionality allows the apparatus to be constructed with smaller dimensions than existing prior art blow out prevention valves aiding handling and manoeuvrability. The improved valve according to one embodiment also has a mechanism that guides a wireline or a pipeline being run in the wellbore to the centre of the bore and allows a seal to be formed around the wireline or pipeline.
摘要翻译：用于密封井筒的改进的阀和使用方法，特别是用于防止井筒吹出。在一个实施例中，设备被设计成通过公柱的旋转来密封井。可以致动活塞以密封井，而不必对整个井的压力起作用，因为还包含公柱的装置壳体中的流体容积被保留。该功能允许该装置构造成比现有的现有技术的防喷射阀更小的尺寸辅助处理和机动性。根据一个实施例的改进的阀还具有一种机构，其将在井眼中运行的钢丝绳或管道引导到孔的中心，并且允许在钢丝绳或管道周围形成密封。

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