Method of and apparatus for inserting pipes and tools into wells

Details Method of and apparatus for inserting pipes and tools into wells Method of and apparatus for inserting pipes and tools into wells

1997-07-30

1999-11-23

Bagnell, David

Wells

Above ground apparatus

Moving tubing or cable into an existing well

166 7753, 254 29R, E21B 1908

Patent

active

059882743

ABSTRACT:
A snubbing configuration for inserting a pipe and/or a tool assembly on a pipe into a live well head employs a telescopic cylinder, e.g. a telescopic snubbing jack, between an upper BOP, e.g. an annular BOP, and a lower BOP, e.g. a double-gate BOP, in place of a conventional stripping BOP and an extended spool which are required in conventional configurations to accommodate long tool assemblies.

REFERENCES:
patent: 1586923 (1926-02-01), Townsend
patent: 3096075 (1963-07-01), Brown
patent: 4162704 (1979-07-01), Gunther
patent: 5020590 (1991-06-01), McLeod

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