Gas generator with improved ignition assembly

Details Gas generator with improved ignition assembly Gas generator with improved ignition assembly

1990-07-02

1991-04-09

Novosad, Stephen J.

Wells

With explosive or gas generating means in well

102313, 102322, E21B 43263, F42B 308, F42B 310

Patent

active

050056417

ABSTRACT:
A gas generating type tool includes a propellant charge having an axially extending passage receiving therein an ignition tube containing a quantity of easily ignited, fast burning powder. The propellant and ignition tube are separately handled and/or transported until ready to run into the well. The tube slides easily into the propellant passage. The propellant passage is at least about 12% larger in cross-section than the ignition tube and not more than about 55% larger in cross-section. In circular cross-sections, the propellant passage is at least about 6% greater in diameter and not more than about 25% greater in diameter.

REFERENCES:
patent: 3270668 (1966-09-01), Silver
patent: 3313234 (1967-04-01), Mohaupt
patent: 3618521 (1971-11-01), Montesi
patent: 4081031 (1978-03-01), Mohaupt
patent: 4329925 (1982-05-01), Hane et al.
patent: 4383484 (1983-05-01), Morrey
patent: 4391337 (1983-07-01), Ford et al.
patent: 4425849 (1984-01-01), Jorgenson
patent: 4530396 (1985-07-01), Mohaupt
patent: 4765246 (1988-08-01), Carlsson et al.
patent: 4799428 (1989-01-01), Yunan

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