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1. 发明授权

US08511392B2 Downhole swivel sub 有权
标题翻译：井下旋转子
公开(公告)号：US08511392B2
公开(公告)日：2013-08-20
申请号：US13483209
申请日：2012-05-30
申请人： Paul Howlett , James Bain
发明人： Paul Howlett , James Bain
IPC分类号： E21B23/04
CPC分类号： E21B17/05
摘要： The present invention provides a swivel sub for connection in a work string between a workstring and a downhole apparatus. The swivel sub includes a first substantially cylindrical body, including a sleeve portion having one or more teeth and a second substantially cylindrical body being partially located within the sleeve portion. The bodies are arranged to rotate relative to each other. The swivel sub also includes a sliding sleeve, having one or more teeth arranged mutually engage with the first teeth is axially moveable between disengaged and engaged positions, in one embodiment by a pressure differential being created in the sub. Further, the present invention provides methods for of running the tool, with particular application to setting and hanging of liners and screens.
摘要翻译：本发明提供了一种用于在工作串和井下设备之间的工作串中连接的旋转子。旋转副包括第一基本上圆柱形的主体，包括具有一个或多个齿的套筒部分和部分地位于套筒部分内的第二基本上圆柱形的主体。主体被布置成相对于彼此旋转。旋转接头还包括滑动套筒，其具有与第一齿相互接合的一个或多个齿在分离和接合位置之间轴向移动，在一个实施例中通过在副中产生压力差。此外，本发明提供了用于运行该工具的方法，特别适用于衬套和筛网的设置和悬挂。

2. 发明授权

US08342251B2 Shoe for wellbore lining tubing 有权
标题翻译：用于井筒衬管
公开(公告)号：US08342251B2
公开(公告)日：2013-01-01
申请号：US12523441
申请日：2008-01-21
申请人： Paul Howlett , Michael Wardley
发明人： Paul Howlett , Michael Wardley
IPC分类号： E21B33/14
CPC分类号： E21B21/10 , E21B33/14
摘要： Provided is a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.
摘要翻译：提供了一种用于井眼衬管的鞋和用于将井筒衬管在工作井中定位的方法。特别地但非排他地，本发明涉及一种用于井筒管的鞋，其具有用于控制井眼中的流体循环的改进的流体流动分流器组件。

3. 发明申请

US20060169463A1 Downhole tool with actuable barrier 有权
标题翻译：井下工具具有可启动的屏障
公开(公告)号：US20060169463A1
公开(公告)日：2006-08-03
申请号：US10537925
申请日：2003-12-08
申请人： Paul Howlett
发明人： Paul Howlett
IPC分类号： E21B33/08 , E21B31/08 , E21B34/06
CPC分类号： E21B34/14 , E21B27/005 , E21B33/127 , E21B37/00
摘要： A downhole tool for use in a cased or lined well bore (40), the tool including a barrier (36) arranged on an outer surface of the tool. The barrier may be of a resilient material so that it can be deformed on actuation to control the passage of fluid between the tool and the casing or liner. Fluid flow is thus selectively diverted through flow paths (22) in the tool. Embodiments are described for actuating the barrier by hydraulic means and for filtering the fluid within the flow paths.
摘要翻译：一种用于套管或衬里井眼（40）的井下工具，该工具包括布置在工具的外表面上的阻挡层（36）。阻挡件可以是弹性材料，使得其可以在致动时变形以控制流体在工具和套管或衬套之间的通过。因此，流体流动通过工具中的流动路径（22）选择性地转向。描述了用于通过液压装置致动障碍物并且用于过滤流动路径内的流体的实施例。

4. 发明授权

US06497295B1 Torque limiting tool 有权
标题翻译：扭矩限制工具
公开(公告)号：US06497295B1
公开(公告)日：2002-12-24
申请号：US09494760
申请日：2000-01-31
申请人： Mark Carmichael , Paul Howlett
发明人： Mark Carmichael , Paul Howlett
IPC分类号： E21B1706
CPC分类号： E21B34/14 , E21B17/06 , E21B21/103 , E21B47/091
摘要： A down-hole tool comprises a generally tubular body for connection in a drill string, the body typically having an upper tubular member and a lower tubular member interconnected to be axially secured and relatively rotatable, and a frangible element securing the upper and lower members together rotationally and adapted to rupture at a predetermined load
摘要翻译：井下工具包括用于在钻柱中连接的大体管状体，所述主体通常具有上部管状构件和互连以被轴向固定和相对旋转的下部管状构件，以及将上部构件和下部构件固定在一起的易碎元件旋转并适于在预定负载下破裂

5. 发明授权

US06279657B1 Apparatus and method for circulating fluid in a well bore 有权
标题翻译：在井眼中循环流体的装置和方法
公开(公告)号：US06279657B1
公开(公告)日：2001-08-28
申请号：US09173258
申请日：1998-10-14
申请人： Mark Carmichael , Paul Howlett
发明人： Mark Carmichael , Paul Howlett
IPC分类号： E21B2112
CPC分类号： E21B37/00 , E21B21/103
摘要： A circulating tool for circulating fluid in a borehole comprising a tubular assembly having an axial through passage between an inlet and a first outlet, a second outlet extending generally transversely of the tubular assembly, and an obturating member moveable relative to the tubular assembly between a first position closing the second outlet and a second position at which the second outlet is open, wherein the obturating member is also moveable between an engaging position at which it is engaged with the tubular assembly and a non-engaging position at which it is not so engaged with the tubular assembly, and wherein when the obturating member is in the first position it may be in either the engaging position or the non-engaging position.
摘要翻译：一种用于在钻孔中循环流体的循环工具，包括管状组件，该管状组件在入口和第一出口之间具有轴向通过通道，大体上横向于所述管状组件延伸的第二出口以及可相对于所述管状组件在第一关闭所述第二出口的位置和所述第二出口打开的第二位置，其中所述闭塞构件也可在其与所述管状组件接合的接合位置与所述第二出口不接合的非接合位置之间移动与管状组件一起，并且其中当所述闭塞构件处于所述第一位置时，其可处于接合位置或非接合位置。

6. 发明申请

US20120234559A1 DOWNHOLE SWIVEL SUB 有权
标题翻译：卧室开关
公开(公告)号：US20120234559A1
公开(公告)日：2012-09-20
申请号：US13483209
申请日：2012-05-30
申请人： Paul HOWLETT , James BAIN
发明人： Paul HOWLETT , James BAIN
IPC分类号： E21B23/00
CPC分类号： E21B17/05
摘要： The present invention provides a swivel sub for connection in a work string between a workstring and a downhole apparatus. The swivel sub includes a first substantially cylindrical body, including a sleeve portion having one or more teeth and a second substantially cylindrical body being partially located within the sleeve portion. The bodies are arranged to rotate relative to each other. The swivel sub also includes a sliding sleeve, having one or more teeth arranged mutually engage with the first teeth is axially moveable between disengaged and engaged positions, in one embodiment by a pressure differential being created in the sub. Further, the present invention provides methods for of running the tool, with particular application to setting and hanging of liners and screens.
摘要翻译：本发明提供了一种用于在工作串和井下设备之间的工作串中连接的旋转子。旋转副包括第一基本上圆柱形的主体，其包括具有一个或多个齿的套筒部分和部分地位于套筒部分内的第二基本上圆柱形的主体。主体被布置成相对于彼此旋转。旋转接头还包括滑动套筒，其具有与第一齿相互接合的一个或多个齿在分离和接合位置之间轴向移动，在一个实施例中通过在副中产生压力差。此外，本发明提供了用于运行该工具的方法，特别适用于衬套和筛网的设置和悬挂。

7. 发明申请

US20120125689A1 Drill Pipe Tubing and Casing Protector 有权
标题翻译：钻管和套管保护器
公开(公告)号：US20120125689A1
公开(公告)日：2012-05-24
申请号：US13302152
申请日：2011-11-22
申请人： Paul Howlett
发明人： Paul Howlett
IPC分类号： E21B7/00 , E21B17/10
CPC分类号： E21B17/105 , E21B17/1064 , E21B17/1085
摘要： An assembly and method for protecting a pipe string movable within a wellbore. A generally annular body (56) is internally dimensioned to fit around said pipe string, and an outer sleeve (62) formed from at least two part-annular sections (58,60) and rotatably located over the annular body (56). A pair of substantially annular clamping means are adapted to restrict longitudinal movement of the body (56) and outer sleeve (62) relative to the pipe string, each clamping means comprising a one-piece clamping ring (70) and a fastener (74) adapted to tighten the clamping ring (70) around the pipe string. The body (56), outer sleeve (62), and clamping rings (70) may be formed from one or more sacrificial materials that can break up and be circulated out of the wellbore.
摘要翻译：一种用于保护在井筒内可移动的管柱的组件和方法。大体环形体（56）的内部尺寸适于围绕所述管柱，以及由至少两个部分环形部分（58,60）形成并且可旋转地定位在环形体（56）上方的外套筒（62）。一对基本上环形的夹紧装置适于限制主体（56）和外套筒（62）相对于管柱的纵向运动，每个夹紧装置包括一体式夹紧环（70）和紧固件（74）适于围绕管柱紧固夹紧环（70）。主体（56），外套筒（62）和夹紧环（70）可以由一种或多种牺牲材料形成，所述牺牲材料可分解并从井筒中循环出来。

8. 发明申请

US20100065281A1 SHOE FOR WELLBORE LINING TUBING 有权
公开(公告)号：US20100065281A1
公开(公告)日：2010-03-18
申请号：US12523441
申请日：2008-01-21
申请人： Paul Howlett , Michael Wardley
发明人： Paul Howlett , Michael Wardley
IPC分类号： E21B34/06
CPC分类号： E21B21/10 , E21B33/14
摘要： The present invention relates to a shoe for wellbore lining tubing and to a method of locating wellbore lining tubing in a wellbore. In particular, but not exclusively, the present invention relates to a shoe for wellbore lining tubing having an improved fluid flow diverter assembly for controlling circulation of fluid in the wellbore.
摘要翻译：本发明涉及一种用于井筒衬管的鞋和一种将井筒衬管置于井眼中的方法。特别地但非唯一地，本发明涉及一种用于井筒衬管的鞋，其具有用于控制井筒中的流体循环的改进的流体流动分流器组件。

9. 发明申请

US20080236841A1 Downhole Swivel Sub 有权
标题翻译：井下旋转
公开(公告)号：US20080236841A1
公开(公告)日：2008-10-02
申请号：US11911049
申请日：2006-04-18
申请人： Paul Howlett , James Bain
发明人： Paul Howlett , James Bain
IPC分类号： E21B17/05 , E21B23/08
CPC分类号： E21B17/05
摘要： A swivel sub for connection in a work string between a workstring and a downhole apparatus is disclosed. The sub has a first substantially cylindrical body, including a sleeve portion having one or more teeth and a second substantially cylindrical body being partially located within the sleeve portion. The bodies are arranged to rotate relative to each other. A sliding sleeve, having one or more teeth arranged mutually engage with the first teeth is axially moveable between disengaged and engaged positions, in one embodiment by a pressure differential being created in the sub. Methods of running the tool are described, with particular application to setting and hanging of liners and screens. The invention also offers advantages for drilling applications.
摘要翻译：公开了一种用于在工作串和井下设备之间的工作串中连接的旋转子。子部件具有第一基本上圆柱形的主体，包括具有一个或多个齿的套筒部分和部分地位于套筒部分内的第二基本圆柱形主体。主体被布置成相对于彼此旋转。在一个实施例中，具有与第一齿相互接合的一个或多个齿的滑动套筒在分离和接合位置之间可轴向移动，通过在副中产生压力差。描述了运行该工具的方法，特别适用于设置和悬挂衬垫和屏幕。本发明还提供了钻井应用的优点。

10. 发明申请

US20050028982A1 Specialised petroleum services group limited 有权
标题翻译：专业石油服务集团有限公司
公开(公告)号：US20050028982A1
公开(公告)日：2005-02-10
申请号：US10493009
申请日：2002-10-17
申请人： Paul Howlett , George Telfer
发明人： Paul Howlett , George Telfer
IPC分类号： E21B10/32 , E21B29/00 , E21B29/10
CPC分类号： E21B29/00 , E21B10/325
摘要： A downhole tool (10) for use in the removal of burrs or other unwanted material from an inner surface of a pipeline, well casing or other tubular. The toll has a plurality of milling elements (32), which may be biased against the surface or retracted from the surface to disengage the toll from the tubular. A drop ball mechanism with a fluid by-pass is described for disengaging the milling elements.
摘要翻译：一种井下工具（10），用于从管道，套管或其他管状物的内表面去除毛刺或其它不需要的材料。所述通道具有多个铣削元件（32），所述多个铣削元件（32）可被偏压抵靠所述表面或从所述表面缩回以使所述管道远离所述管道。描述了具有流体旁路的落球机构用于分离铣削元件。

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