Methods and apparatus for automatically lauching sticks of vario

Details Methods and apparatus for automatically lauching sticks of vario Methods and apparatus for automatically lauching sticks of vario

1999-07-15

2000-03-21

Suchfield, George

Wells

Processes

Assembling well part

166 70, 166 7515, 166 971, 221278, E21B 33038, E21B 3700

Patent

active

060391227

ABSTRACT:
An apparatus, and related methods, for automatically releasing sticks of various materials into oil and gas wells. The apparatus has an enclosed magazine which has several chambers for the sticks. The magazine rotates on a shaft when a sprocket on the shaft is engaged by a rod moving from an extended to a retracted position. The rod movement is actuated by a double acting cylinder which is powered by well gas. When rotated the magazine positions the next chamber above a bottom exit port which is aligned with the well, causing the stick to be released into the well. During the stick loading process, only a single valve need be opened to enable the sticks to be loaded into the stick chambers. The magazine is rotated by hand after each stick is loaded.

REFERENCES:
patent: Re23583 (1952-11-01), Eilerts
patent: 2713909 (1955-07-01), Baker
patent: 4785880 (1988-11-01), Ashton
patent: 5188178 (1993-02-01), Noyes
patent: 5515924 (1996-05-01), Osterhoudt, III
patent: 5813455 (1998-09-01), Pratt et al.

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