Methods and apparatus for automatically launching sticks of vari

Details Methods and apparatus for automatically launching sticks of vari Methods and apparatus for automatically launching sticks of vari

1998-10-26

2000-05-02

Suchfield, George

Wells

Processes

Entraining or incorporating treating material in flowing...

166 53, 166 7515, F21B 33068, F21B 3706

Patent

active

060560584

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: 3039531 (1962-06-01), Scott
patent: 4235849 (1980-11-01), Handleand
patent: 4785880 (1988-11-01), Ashton
patent: 4830112 (1989-05-01), Erickson
patent: 5188178 (1993-02-01), Noyes
patent: 5515924 (1996-05-01), Osterhoudt, III
patent: 5813455 (1998-09-01), Pratt et al.
Photographs of an automatic stick launcher currently in use by J & J Oilfield & Electric Service, Jim Votaw (undated).

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