Well completion system having a precision cut low profile helix

Details Well completion system having a precision cut low profile helix Well completion system having a precision cut low profile helix

1997-12-31

1999-11-02

Tsay, Frank

Wells

Submerged well

Connection or disconnection of submerged members remotely...

166382, E21B 4301, E21B 2300

Patent

active

059752106

ABSTRACT:
A well completion system for a side valve tree that has a precision cut low profile helix that can be used in completing a wellbore where the bore is substantially curved is provided. The well completion system has a typical spool body assembly having an inside surface defining a vertical bore extending therethrough and having at least a lateral production fluid outlet port. The spool body assembly has a helix is positioned at the lower end. The helix has a tubular member having a generally cylindrical outer surface defining an outer diameter and a generally cylindrical inner surface defining an inner diameter, an upper end and a lower end. The tubular member has an organ pipe-shaped cut in the upper end so that the upper end is generally elliptically shaped to form a pair of arcuate ramps which meet at an apex at the upper end and at a longitudinally extending slot near the lower end and a means for attaching the helix to the spool body assembly. An orientation key on the tubing hanger is precision machined to match the profile of the helix.

REFERENCES:
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patent: 4852611 (1989-08-01), Knerr et al.
patent: 5372199 (1994-12-01), Cegielski et al.

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