Disappearing plug

Wells – Packers or plugs – Flow stopping type; e.g. – plug

Reexamination Certificate

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Reexamination Certificate

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11413899

ABSTRACT:
A system allows for sequential treatment of sections of a zone. Access to each portion can be with a sliding sleeve that has a specific internal profile. Pump down plugs can be used that have a specific profile that will make a plug latch to a specific sleeve. Pressure on the plug when latched allows a sequential opening of sleeves while zones already affected that are below are isolated. The pump down plugs have a passage that is initially obstructed by a material that eventually disappears under anticipated well conditions. As a result, when all portions of a zone are handled a flow path is reestablished through the various latched plugs. The plugs can also be blown clear of a sliding sleeve after operating it and can feature a key that subsequently prevents rotation of the plug on its axis in the event is later needs milling out.

REFERENCES:
patent: 3768563 (1973-10-01), Blount
patent: 5425424 (1995-06-01), Reinhardt et al.
patent: 5479986 (1996-01-01), Gano et al.
patent: 5607017 (1997-03-01), Owens et al.
patent: 5660232 (1997-08-01), Reinhardt
patent: 5765641 (1998-06-01), Shy et al.
patent: 6026903 (2000-02-01), Shy et al.
patent: 6076600 (2000-06-01), Vick, Jr. et al.
patent: 6220350 (2001-04-01), Brothers et al.
patent: 6712153 (2004-03-01), Turley et al.
patent: 6769491 (2004-08-01), Zimmerman et al.
patent: 6896063 (2005-05-01), Chang et al.
patent: 6907936 (2005-06-01), Fehr et al.
patent: 2004/0238173 (2004-12-01), Bissonnette et al.
patent: 2005/0205264 (2005-09-01), Starr et al.
patent: 2005/0205265 (2005-09-01), Todd et al.
patent: 2005/0205266 (2005-09-01), Todd et al.

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