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1. 发明公开

EP3155211A2 DOWNHOLE TOOL AND METHOD 审中-公开
标题翻译： BOHRLOCHWERKZEUG UND VERFAHREN
公开(公告)号：EP3155211A2
公开(公告)日：2017-04-19
申请号：EP15733862.5
申请日：2015-06-12
申请人： Deep Casing Tools Limited
发明人： DAVIS, Lance Stephen , SCOTT, Edward Docherty , WARDLE, Magnus John
IPC分类号： E21B33/138 , E21B37/00
CPC分类号： E21B33/13 , E21B4/02 , E21B10/26 , E21B33/138 , E21B37/00 , E21B37/02
摘要： A downhole tool (10) configured to condition a borehole (B) and deliver a settable material, such as cement slurry, into a borehole annulus (A) for securing and supporting a casing string (C) in the borehole (B) comprises a body in the form of tubular housing (12), a shaft (14) rotatably mounted within the housing (12), a head portion (22) and a drive arrangement (20). In use, borehole cleaning and cementing operations may be carried out by directing a drive fluid, such as drilling mud, through the drive arrangement (20) to drive rotation of the head portion (22) to clean or condition the borehole (b). A cement slurry or the like, may then be directed through the casing string (C) or via a cementing string (S) into the shaft (14), and through the drive arrangement (20), the fluid then being ejected from the head portion (22).
摘要翻译：一种井下工具（10），其构造成调节钻孔（B）并将可凝固材料（例如水泥浆）输送到钻孔环（A）中，用于固定和支撑钻孔（B）中的套管柱（C），包括壳体（12）的形式的主体，可旋转地安装在壳体（12）内的轴（14），头部（22）和驱动装置（20）。在使用中，井眼清洁和固井操作可以通过将诸如钻井泥浆的驱动流体引导通过驱动装置（20）来驱动头部（22）的旋转来清洁或调节钻孔（b）来进行。然后可以将水泥浆等引导通过套管柱（C）或经由固井杆（S）引入轴（14），并且通过驱动装置（20），然后从头部喷出流体部分（22）。

2. 发明公开

EP3175075A2 DOWNHOLE TOOL, METHOD AND ASSEMBLY 审中-公开
标题翻译：井下工具，方法和组装
公开(公告)号：EP3175075A2
公开(公告)日：2017-06-07
申请号：EP15747205.1
申请日：2015-07-31
申请人： Deep Casing Tools Limited
发明人： SCOTT, Edward Docherty
IPC分类号： E21B7/20
CPC分类号： E21B4/02 , E21B4/003 , E21B7/20 , E21B7/203
摘要： A tool assembly (10) comprises a casing section (12), and a downhole tool (14) comprising a rotary drive (16) and a cutting member (18). In use, the tool assembly (10) is disposed in a well borehole (B) and the rotary drive (16) operated to drive rotation of the cutting member (18) to cut the borehole (B). The downhole tool (14) comprises a tubular housing (20) and a cartridge assembly (36), the cartridge assembly (36) disposed within the housing (20) of the downhole tool (14) and comprising the rotary drive (16) of the downhole tool (14). A clutch (78) is provided to enable free movement of the cutting member (18) during normal operation, engagement of the clutch (78) preventing rotation of the cutting member (18) and the housing (20).
摘要翻译：一种工具组件（10）包括壳体部分（12）和包括旋转驱动器（16）和切割部件（18）的井下工具（14）。在使用中，工具组件（10）设置在钻井孔（B）中，并且旋转驱动器（16）被操作以驱动切割构件（18）的旋转以切割钻孔（B）。井下工具（14）包括管状外壳（20）和筒组件（36），筒组件（36）设置在井下工具（14）的外壳（20）内并且包括旋转驱动器井下工具（14）。提供离合器（78）以在正常操作期间使切割构件（18）能够自由移动，离合器（78）的接合防止切割构件（18）和壳体（20）的旋转。

3. 发明公开

EP2307656A2 REAMING TOOL 审中-公开
标题翻译：绞刀
公开(公告)号：EP2307656A2
公开(公告)日：2011-04-13
申请号：EP09769580.3
申请日：2009-06-26
申请人： Deep Casing Tools Limited
发明人： SCOTT, Edward Docherty , DAVIS, Lance Stephen
IPC分类号： E21B4/02 , E21B7/20 , E21B10/26 , E21B17/14
CPC分类号： E21B10/26
摘要： A reaming tool in the form of reamer shoe (10) is adapted for location in a wellbore and comprises a substantially tubular mandrel or body (12) having a central bore (14) located about an axis (15). A cap or nose (16) is coupled to a distal end portion of the body (12) via a connection (18). The nose (16) defines an eccentric offset portion or lobe (20) which extends to a greater axial extent than the remainder of the nose (16). A weighting arrangement is provided, the arrangement adapted to balance the mass of the nose about a central axis of the shoe. The distal surface of the nose (16) comprises a substantially concave central portion (17). The nose (16) further comprises a projection or dimple (19) on an opposing side of the nose (16) from the concave surface.

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