Title:
DOWNHOLE RELEASE JOINT WITH RADIALLY EXPANDABLE MEMBERS
Document Type and Number:
WIPO Patent Application WO/2011/049941
Kind Code:
A3
Abstract:
A downhole releasable tubing connection includes a joint between two tubing strings, wherein one of the two tubing strings is radially expanded and plastically deformed by an expansion device. When the expansion device is moved adjacent to the joint, a mechanism in the joint reacts to the radially outward forces of the expansion device and releasably expands, separates, breaks, or otherwise provides a release between the two tubing strings. One tubing string and the expansion device can then be removed to the surface of the well bore while the expanded tubing remains installed in the well bore.
Inventors:
WHIDDON RICHARD MURRAY (US)
Application Number:
PCT/US2010/053187
Publication Date:
August 04, 2011
Filing Date:
October 19, 2010
Export Citation:
Assignee:
ENVENTURE GLOBAL TECHNOLOGY (US)
WHIDDON RICHARD MURRAY (US)
WHIDDON RICHARD MURRAY (US)
International Classes:
E21B17/06; E21B23/00; E21B43/10; F16L25/00
Foreign References:
| US20040194966A1 | 2004-10-07 | |||
| US20060065406A1 | 2006-03-30 | |||
| US6997264B2 | 2006-02-14 | |||
| US7240928B2 | 2007-07-10 |
Attorney, Agent or Firm:
FORINASH, Derek V. (15995 North Barkers LandingSuite 35, Houston Texas, US)
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