Dual tubing string hanging apparatus

Details Dual tubing string hanging apparatus Dual tubing string hanging apparatus

1996-05-02

1998-08-18

Dang, Hoang C.

Wells

Above ground apparatus

With assembly or disassembly means

166 7514, 166 781, 166 975, E21B 33047

Patent

active

057946930

ABSTRACT:
An apparatus for hanging a production tubing string and a guide string within a well casing having a wellhead. The apparatus includes a primary hanger shell for supporting the production tubing string and guide string in the well casing, a production mandrel received within the primary hanger shell and connected to the production tubing string to hang the production tubing string within the primary hanger shell, and a guide string hanger connected to and hanging the guide string within the primary hanger shell. The guide string hanger also allows the guide string to be removed from the well casing independently from the removal of the primary hanger shell, the production mandrel or the production tubing string.

REFERENCES:
patent: 1662984 (1928-03-01), Scott et al.
patent: 2694450 (1954-11-01), Osbun
patent: 2696261 (1954-12-01), Ennis
patent: 2788073 (1957-04-01), Brown
patent: 2830665 (1958-04-01), Burns et al.
patent: 2846013 (1958-08-01), Davis
patent: 3007719 (1961-11-01), Sherman et al.
patent: 3247903 (1966-04-01), Knight
patent: 3299958 (1967-01-01), Todd
patent: 5465788 (1995-11-01), Wright

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