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公开(公告)号：EP3247865A1
公开(公告)日：2017-11-29
申请号：EP15876047.0
申请日：2015-12-22
CPC分类号： E21B17/1028
摘要： A centralizer assembly and method for manufacturing a centralizer assembly. The centralizer assembly includes a mandrel including a first raised region having a first diameter, and a turned-down region having a second diameter, the second diameter being smaller than the first diameter. The centralizer assembly also includes a first stop segment extending at least partially around the mandrel in the turned-down region, and a centralizer disposed at least partially in the turned-down region. The first stop segment is received between axial extents of the centralizer, to limit a range of motion of the centralizer relative to the mandrel.
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公开(公告)号：EP2935764B1
公开(公告)日：2017-07-26
申请号：EP13815110.5
申请日：2013-12-20
申请人： Bisn Tec Ltd
发明人： CARRAGHER, Paul
IPC分类号： E21B33/136 , E21B17/10 , E21B33/134 , E21B36/00 , C22C12/00
CPC分类号： E21B33/13 , C06B33/00 , C06B47/00 , C09K8/426 , C22C9/00 , C22C12/00 , E21B17/1028 , E21B27/02 , E21B33/12 , E21B33/1204 , E21B33/134 , E21B33/136 , E21B36/008 , E21B47/00
摘要： A chemical reaction heat source for use in heaters used in down-hole applications is provided. The heat source has a fuel composition that comprises thermite and a damping agent. The use of the thermite mix enables the heaters of the present invention to generate hotter temperatures down wells. This in turn allows the use of Bismuth/Germanium alloys, which have higher melting points, to enable the production of plugs for the abandonment of deeper wells where subterranean temperatures are higher.
摘要翻译： 提供用于井下应用的加热器中的化学反应热源。 热源具有包含铝热剂和阻尼剂的燃料组合物。 使用铝热剂混合物能够使本发明的加热器在井下产生较热的温度。 这反过来又允许使用具有较高熔点的铋/锗合金，从而能够生产用于放弃地下温度较高的较深井的塞子。
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公开(公告)号：EP3179029A1
公开(公告)日：2017-06-14
申请号：EP16196952.2
申请日：2013-12-20
申请人： Bisn Tec Ltd
发明人： Carragher, Paul
IPC分类号： E21B33/136 , E21B17/10 , E21B33/134 , E21B36/00 , C22C12/00
CPC分类号： E21B33/13 , C06B33/00 , C06B47/00 , C09K8/426 , C22C9/00 , C22C12/00 , E21B17/1028 , E21B27/02 , E21B33/12 , E21B33/1204 , E21B33/134 , E21B33/136 , E21B36/008 , E21B47/00
摘要： A plug for plugging wells, and in particular oil and gas wells, is provided. The plug has a plug body formed from an outer metal tube of a reduced thickness. The plug also has reinforcement means, attached to an inner surface of the outer tube, that give the plug a cross-sectional structural strength that is at least equivalent to that of a thicker metal tube. The plug has a central heater receiving void located along the axis of the plug to enable a plug deployment heater to be received therein. Also provided is a plug assembly with a variable cross-sectional area in a plane perpendicular to the plane in which the assembly is deployed during the plugging of underground conduits.
摘要翻译： 提供堵塞井的插塞，特别是油气井。 插头具有由厚度减小的外部金属管形成的插头本体。 插头还具有附接到外管内表面的增强装置，其赋予插头截面结构强度，其至少等同于较厚金属管的截面结构强度。 插头具有沿着插头的轴线定位的中央加热器接收空隙，以使得插头部署加热器能够容纳在其中。 还提供了一种插塞组件，该插塞组件在与地下导管堵塞期间组件展开的平面垂直的平面中具有可变的横截面积。
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公开(公告)号：EP2677111A3
公开(公告)日：2016-01-13
申请号：EP13184205.6
申请日：2008-11-28
申请人： Petrowell Ltd
发明人： MacLeod, Iain
IPC分类号： E21B17/10
CPC分类号： E21B17/1021 , E21B17/1028 , E21B17/1078
摘要： A centraliser (10) for centralising a tubular in a conduit is described. The centraliser comprises a body comprising a upper body portion (12) and a lower body portion (14) and a plurality of arms (16) linking the upper body portion to the lower body portion. Relative movement of the upper and lower body portions towards each other causes the arms to buckle radially outwards into a set configuration in which the arms are engaged, in use, with a conduit.
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公开(公告)号：EP2464811B1
公开(公告)日：2014-02-26
申请号：EP10744715.3
申请日：2010-08-10
发明人： JENNER, Andrew
CPC分类号： E21B17/1028 , E21B37/02
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公开(公告)号：EP2601374A2
公开(公告)日：2013-06-12
申请号：EP11739094.8
申请日：2011-08-05
IPC分类号： E21B17/10
CPC分类号： F16M13/02 , E21B17/1028 , E21B17/1035 , E21B47/01 , F16B2/06 , F16L3/08
摘要： Clamp (1, 1') comprising a main body (3, 3') adapted to encircle an inner element (101) or to be encircled by an outer element to which the clamp (1) can releasably connect. An axially extending opening extends through the main body (3, 3'). The clamp comprises a locking arm (5) which is connected to said main body (3, 3') at a base end (7), and which can bend elastically to move its oppositely positioned free end (9) in a substantially radial direction. The locking arm (5) comprises a locking pad (13) at a distance from the base end (7), which in a locking position of the locking arm (5) extends radially beyond an inner (4) or outer (4') diameter, respectively, of the main body (3, 3'). The locking pad (13) is adapted to engage with a recess (113) in said inner (101) or outer (101') element.
摘要翻译： 夹具（1,1'）包括适于环绕内部元件（101）或被外部元件包围的主体（3,3'），夹具（1）可以可释放地连接到外部元件。 轴向延伸的开口延伸穿过主体（3,3'）。 所述夹具包括锁定臂（5），所述锁定臂在基端（7）处连接到所述主体（3,3'），并且所述锁定臂能够弹性弯曲以沿其大致径向方向移动其相对定位的自由端（9） 。 所述锁定臂（5）包括与所述基端（7）相距一定距离的锁定垫（13），所述锁定臂在所述锁定臂（5）的锁定位置径向延伸超过内部（4）或外部（4'） 主体（3,3'）的直径。 锁定垫（13）适于与所述内部元件（101）或外部元件（101'）中的凹部（113）接合。
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公开(公告)号：EP2464811A1
公开(公告)日：2012-06-20
申请号：EP10744715.3
申请日：2010-08-10
发明人： JENNER, Andrew
CPC分类号： E21B17/1028 , E21B37/02
摘要： A stop collar or like device is formed in one piece to have a portion for a tool to be attached. Movement of the tool allows the collar to be drawn tightly into engagement onto a pipe or other tubular member. A bow centraliser has alternate bows longitudinally offset to reduce initial insertion force. The centraliser may be formed to have end bands of the type used in the stop collar.
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公开(公告)号：EP2423430A1
公开(公告)日：2012-02-29
申请号：EP11187347.7
申请日：2007-11-21
申请人： Swelltec Limited
发明人： Nutley, Brian , Nutley, Kim
IPC分类号： E21B33/10
CPC分类号： E21B33/12 , E21B17/10 , E21B17/1028 , E21B17/1078 , E21B33/10 , E21B33/1208 , E21B33/1216
摘要： A kit of parts which is assembled to form downhole apparatus and a method of forming the same are described. The kit of parts comprises a swellable member, which expands upon contact with at least one predetermined fluid, and a connector. The swellable member has a first mating profile towards a first end and a second mating profile towards a second, opposing end. The connector has a mating profile configured to mate with each of the first and second mating profiles of the swellable member. The connector can therefore be connected to either the first and second ends of the swellable member. The connector may be an end connector, or may connect the swellable member to a second swellable member. In either case, the connector may define an arresting surface against which the swellable member abuts when expanding. The kit of parts can be adapted to and installed on any well tubular, and may form any of a variety of tools including a well packer, a centraliser or an anchor.
摘要翻译： 描述了组装成形成井下设备的部件套件及其形成方法。 该成套部件包括膨胀部件和连接器，该膨胀部件在与至少一种预定流体接触时膨胀。 可膨胀构件具有朝向第一端的第一配合轮廓和朝向相对的第二端的第二配合轮廓。 该连接器具有配合轮廓，该配合轮廓被构造成与可膨胀构件的第一和第二配合轮廓中的每一个配合。 因此连接器可以连接到可膨胀构件的第一端和第二端。 连接器可以是端部连接器，或者可以将可膨胀构件连接到第二可膨胀构件。 在任一种情况下，连接器可以限定当膨胀时可膨胀构件抵靠的止动表面。 部件套件可以适应并安装在任何井管上，并且可以形成各种工具中的任何一种，包括井封隔器，定心器或锚。
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59.发明公开FRICTION REDUCING WEAR BAND AND METHOD OF COUPLING A WEAR BAND TO A TUBULAR 有权减少摩擦VERSCHLEISSBAND和方法，用于连接VERSCHLEISSBANDS与管道
公开(公告)号：EP2417324A2
公开(公告)日：2012-02-15
申请号：EP10714737.3
申请日：2010-04-07
IPC分类号： E21B17/10
CPC分类号： E21B17/16 , E21B17/04 , E21B17/1028 , E21B17/1064 , E21B17/1078 , E21B17/1085
摘要： In one embodiment, a wear band comprises a rotating element having a bore receivable on a tubular, the bore comprising first and second bore portions slidably receiving first and second sleeve bearings. Outer surfaces of the sleeve bearings slidably engage the bore portions and the bores of the sleeve bearings slidably engage the tubular. A first stop collar and a second stop collar may be received on the tubular to together straddle the rotating element and sleeve bearings to longitudinally secure the rotating element in a position on the tubular. The tubular may be included within a tubular string run into a borehole or into the bore of an installed casing, such as in casing while drilling. The rotating element provides stand-off between a tubular and the wall of a bore, reduces frictional resistance to longitudinal sliding and also to rotation of the tubular string within the bore.
摘要翻译： 在一个中，磨损带的实施例包括具有在管状的孔可接收的旋转元件，该孔包括第一和第二孔部分可滑动地接收第一和第二套筒轴承。 套筒轴承的外表面可滑动地接合套筒轴承的孔部和所述孔可滑动地接合管形。 第一止动环和第二限位环可在所述管状接收到一起跨越旋转元件和套筒轴承在所述管状件的纵向位置固定旋转元件。 管状可包括运行到井眼中或成安装套管，颜色的孔中的管柱内：如在套管钻井时。 转动元件提供对峙的管状和孔的壁之间，减少摩擦阻力纵向滑动，从而在孔内管柱旋转。
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公开(公告)号：EP2402548A1
公开(公告)日：2012-01-04
申请号：EP11182827.3
申请日：2007-11-21
申请人： Swelltec Limited
发明人： Nutley, Brian , Nutley, Kim
CPC分类号： E21B33/12 , E21B17/10 , E21B17/1028 , E21B17/1078 , E21B33/10 , E21B33/1208 , E21B33/1216
摘要： A downhole apparatus, for example a centraliser, comprises a swellable material which expands upon contact with at least one predetermined fluid. In a first aspect of the invention, a centraliser comprises a body and a plurality of formations upstanding from the body. In another aspect, a downhole apparatus comprise a throughbore configured to receive a tubular, a swellable member, and a rigid assembly integrally formed with the swellable member. The rigid assembly provides stand off to the apparatus in use. In a further aspect, the downhole apparatus has a first condition, before expansion of the swellable member in which a rigid assembly defines a maximum outer diameter of the apparatus. In a second condition after expansion of the swellable member, the swellable member defines a maximum outer diameter of the apparatus. In a preferred embodiment the rigid assembly is designed to flex or deform under an axial or radial load.
摘要翻译： 井下装置，例如中央调节器，包括在与至少一种预定流体接触时膨胀的可溶胀材料。 在本发明的第一方面中，一种扶正器包括主体和从主体直立的多个结构。 在另一方面，一种井下装置包括通孔，该通孔构造成接收管状物，可膨胀构件以及与可膨胀构件一体形成的刚性组件。 刚性组件为使用中的设备提供了支架。 另一方面，在可膨胀构件膨胀之前，井下装置具有第一状态，其中刚性组件限定装置的最大外径。 在可膨胀构件膨胀之后的第二状态下，可膨胀构件限定装置的最大外径。 在优选实施例中，刚性组件被设计成在轴向或径向载荷下挠曲或变形。
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