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1. 发明申请

WO2008104177A1 DRILLING TOOL WITH FLUID CLEANER 审中-公开
标题翻译：钻孔工具与流体清洁剂
公开(公告)号：WO2008104177A1
公开(公告)日：2008-09-04
申请号：PCT/DK2008/000082
申请日：2008-02-28
申请人： WELLTEC A/S , HALLUNDBAEK, Jorgen , ANDERSEN, Thomas, Sune
发明人： HALLUNDBAEK, Jorgen , ANDERSEN, Thomas, Sune
IPC分类号： E21B4/04 , E21B27/00 , E21B49/02
CPC分类号： E21B21/002 , E21B27/005
摘要： Drilling tool (1) for drilling a well downhole where fluid is surrounding the tool and where the tool has a housing (15) and is connected to an electrical conducting means, such as a wireline. The drilling tool has a drilling head (2) and a fluid cleaner (3) for removal of elements, such as debris and formation pieces, from the fluid while drilling downhole. The fluid cleaner has a chamber (4) and a filter (5) within the chamber for separation of the elements from the fluid. The tool further comprises a pump (8) for pumping the fluid into the chamber through an inlet (11) in the drilling head (2) and through the filter before entering the well again. Furthermore, the tool comprises a driving unit for driving the pump and the drilling head.
摘要翻译：钻井工具（1），用于钻井井下，其中流体围绕工具，并且工具具有壳体（15）并且连接到诸如有线的导电装置。钻井工具具有钻头（2）和流体清洁器（3），用于在井下钻井时从流体中去除诸如碎屑和地层的元件。流体清洁器在室内具有室（4）和过滤器（5），用于将元件与流体分离。该工具还包括泵（8），用于通过钻头（2）中的入口（11）将流体泵送到室中，并且在再次进入井之前通过过滤器。此外，该工具包括用于驱动泵和钻头的驱动单元。

2. 发明申请

WO2008104178A1 DRILLING TOOL WITH FEED CONTROL 审中-公开
标题翻译：钻井工具与饲料控制
公开(公告)号：WO2008104178A1
公开(公告)日：2008-09-04
申请号：PCT/DK2008/000083
申请日：2008-02-28
申请人： WELLTEC A/S , HALLUNDBAEK, Jorgen , ANDERSEN, Thomas, Sune
发明人： HALLUNDBAEK, Jorgen , ANDERSEN, Thomas, Sune
IPC分类号： E21B4/18 , E21B17/07 , E21B34/08
CPC分类号： E21B4/18 , E21B17/07 , E21B44/02
摘要： The present invention relates to a drilling tool (1) for drilling downhole, comprising a drilling head (2) in connection with a first portion (18) of the drilling tool, a driving unit (9) for driving the drilling head and the first portion forward in a longitudinal movement while drilling, and a feed control (19) for controlling the longitudinal movement of the drilling head.
摘要翻译：本发明涉及一种用于钻井的钻具（1），包括与钻具的第一部分（18）连接的钻头（2），用于驱动钻头和驱动钻头的驱动单元（9）在钻孔时沿纵向运动向前的部分;以及用于控制钻头的纵向运动的进给控制器（19）。

3. 发明申请

WO2008104179A3 DRILLING HEAD FOR REBORINQ A STUCK VALVE 审中-公开
公开(公告)号：WO2008104179A3
公开(公告)日：2008-09-04
申请号：PCT/DK2008/000084
申请日：2008-02-28
申请人： WELTEC A/S , HALLUNDBÆK, Jørgen , JENSEN, Svend, Karsten , ANDERSEN, Thomas, Sune
发明人： HALLUNDBÆK, Jørgen , JENSEN, Svend, Karsten , ANDERSEN, Thomas, Sune
IPC分类号： E21B11/00 , E21B34/06 , E21B10/26 , E21B29/00
摘要： The present invention relates to a drilling head (2) for reboring a stuck valve (35) or drilling into the formation downhole (36). The invention furthermore relates to a drilling tool (1) comprising the drilling head and a driving unit (9). The drilling head comprises a hole saw (28) beside a drill bit for cutting out a piece (37) from the stuck valve. Furthermore, the invention relates to a drilling system comprising the drilling tool and a driving tool for moving the drilling tool downhole; a method of drilling; and a use of the drilling head.

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