Insertion drive system for tree savers

Details Insertion drive system for tree savers Insertion drive system for tree savers

1984-12-05

1986-12-30

Leppink, James A.

Wells

Above ground apparatus

Moving tubing or cable into an existing well

166 80, 254 29R, F21B 1900

Patent

active

046321837

ABSTRACT:
An insertion drive system for a well head tree saver includes a pair of parallel, spaced beams, a lower one of which is attached to the tree. High pressure tubing is held by the upper beam and is inserted into or withdrawn from the tree by motor driven mechanical jack assemblies which lower or raise the upper beam relative to the lower beam. Manual operation of the jack assemblies is also provided.

REFERENCES:
patent: 131746 (1872-10-01), Dubois
patent: 703251 (1902-06-01), Haire
patent: 1498062 (1924-06-01), Albaugh
patent: 1895132 (1933-01-01), Minor
patent: 1984230 (1934-12-01), Otis
patent: 2455736 (1948-12-01), Conley
patent: 2983159 (1961-05-01), Zeligowsky et al.
patent: 3757858 (1973-09-01), Davis et al.
patent: 3911810 (1975-10-01), Standbridge
patent: 4387635 (1983-06-01), Abbestam et al.

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