Invention Grant
- Patent Title: Well bore anchors
- Patent Title (中): 井孔锚
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Application No.: US11816421Application Date: 2005-10-07
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Publication No.: US07690424B2Publication Date: 2010-04-06
- Inventor: Iain McLeod , Steve Reid
- Applicant: Iain McLeod , Steve Reid
- Applicant Address: GB
- Assignee: Petrowell Limited
- Current Assignee: Petrowell Limited
- Current Assignee Address: GB
- Agency: Dykas, Shaver & Nipper, LLP
- Agent Stephen M. Nipper
- Priority: GB0504471.4 20050304
- International Application: PCT/GB2005/003871 WO 20051007
- International Announcement: WO2006/092545 WO 20060908
- Main IPC: E21B23/01
- IPC: E21B23/01
Abstract:
A formation engaging member for use in an open hole anchor (10) is described. The formation engaging member has at least one first open hole surface engaging element (20) for penetrating a surface of an open hole, and at least one second open hole surface engaging element (22) for fractionally interacting with a surface of the open hole to form an interference engagement. A method of anchoring to a formation surface of an open hole and an anchor are also described.
Public/Granted literature
- US20090014173A1 WELL BORE ANCHORS Public/Granted day:2009-01-15
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