发明授权
- 专利标题: Dual function cleaning tool
- 专利标题(中): 双功能清洁工具
-
申请号: US12494003申请日: 2009-06-29
-
公开(公告)号: US07870897B2公开(公告)日: 2011-01-18
- 发明人: George Telfer
- 申请人: George Telfer
- 申请人地址: GB Aberdeen
- 专利权人: Specialised Petroleum Services Group Limited
- 当前专利权人: Specialised Petroleum Services Group Limited
- 当前专利权人地址: GB Aberdeen
- 代理机构: Osha Liang LLP
- 优先权: GB0306821.0 20030325
- 主分类号: E21B37/00
- IPC分类号: E21B37/00
摘要:
A cleaning tool for cleaning a liner top in a well bore. The tool includes cleaning elements, typically scrapers, which are arranged eccentrically to an axial bore through the tool. The elements are biased outwardly to contact an inner surface of a polished bore receptacle (PBR) at a position with a curvature to match the PBR and to present leading edges of each element when positioned at a surface of a neighbouring casing. The tool may further provide a top dress mill and act as a packer actuator sub. This provides a tool which performs a number of functions on a single trip in a well bore.
公开/授权文献
- US20090255665A1 DUAL FUNCTION CLEANING TOOL 公开/授权日:2009-10-15