Invention Grant
- Patent Title: Torque converter for use when drilling with a rotating drill bit
- Patent Title (中): 用旋转钻头钻孔时使用的转矩转换器
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Application No.: US11813920Application Date: 2006-01-16
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Publication No.: US07654344B2Publication Date: 2010-02-02
- Inventor: Per Olav Haughom , Nils Reimers
- Applicant: Per Olav Haughom , Nils Reimers
- Applicant Address: NO Stavanger
- Assignee: Tomax AS
- Current Assignee: Tomax AS
- Current Assignee Address: NO Stavanger
- Agency: Andrus, Sceales, Starke & Sawall, LLP
- Priority: NO20050223 20050114
- International Application: PCT/NO2006/000019 WO 20060116
- International Announcement: WO2006/075921 WO 20060720
- Main IPC: E21B17/07
- IPC: E21B17/07
Abstract:
A torque converter for use in drilling with a rotating drill bit, the purpose of the torque converter being to absorb impacts and bring about an axial movement of the drill bit when the torque exceeds a predetermined value. For this purpose the torque converter is composed of two cylindrical string parts connected through the bearing elements. The string parts are connected to each other through helical elements in such a way that relative rotation of the two cylindrical string parts brings about axial movement, which unloads the drill bit.
Public/Granted literature
- US20080202816A1 Torque Converter for Use When Drilling with a Rotating Drill Bit Public/Granted day:2008-08-28
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