Boring or penetrating the earth – Boring with explosion in inaccessible hole – With position orienting or indicating
Patent
1985-08-07
1987-01-20
Novosad, Stephen J.
Boring or penetrating the earth
Boring with explosion in inaccessible hole
With position orienting or indicating
175 451, 166 551, E21B 43117
Patent
active
046374787
ABSTRACT:
The present invention includes a gravity oriented perforating gun for use downhole in a slanted borehole. The center of gravity of the gun is located relative to the charge carrier and to a journal means to cause the charge carrier to rotate by gravity about the longitudinal axis of the gun into a predetermined relative position. A plurality of the spaced journal means support the charge carrier in low friction relationship relative to the wellbore. The individual shaped charges gravitate into a position which orients the direction of penetration to occur in a downward direction. Accordingly, production must occur in an upwardly direction through the perforations and into the slanted borehole, thereby reducing flow of formation particles into the borehole.
REFERENCES:
patent: 2866508 (1958-12-01), Church
patent: 3100443 (1963-08-01), Pohoriles
patent: 3426850 (1969-02-01), McDuffie, Jr.
patent: 3951218 (1976-04-01), Sjogren
patent: 4105073 (1978-08-01), Brieger
patent: 4153118 (1977-03-01), Hart
patent: 4194577 (1980-03-01), Vann
patent: 4410051 (1980-10-01), Daniel et al.
Duzan James R.
Halliburton Company
Novosad Stephen J.
Odar Thomas J.
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