Boring or penetrating the earth – Boring with explosion in inaccessible hole – Concave-shaped charge
Patent
1986-05-19
1988-02-23
Novosad, Stephen J.
Boring or penetrating the earth
Boring with explosion in inaccessible hole
Concave-shaped charge
102310, 166 551, E21B 43117
Patent
active
047264314
ABSTRACT:
A perforating gun is designed to have explosive charges spirally disposed around its circumference in accordance with a displacement angle defined as (m/p)(360.degree.), where p is a whole number greater than 4 and m is a whole number greater than 1 but less than (p-1) and where m/p is an irreducible fraction. A U, or horseshoe, shaped retainer clip holds individual charges in respective holes and cavities of an outer carrier tube and an inner carrier tube to prevent horizontal or transverse movement of each charge and thereby hold it in contact with an axially extending detonator cord.
REFERENCES:
patent: 2256419 (1941-09-01), Tinnerman
patent: 2402153 (1946-06-01), Elliott
patent: 2433231 (1947-12-01), Martin
patent: 2565788 (1951-08-01), Tow
patent: 2649046 (1953-08-01), Davis
patent: 2680406 (1954-06-01), Austin
patent: 2742857 (1956-04-01), Turechek
patent: 2750885 (1956-06-01), Schlumberger
patent: 2756677 (1956-07-01), McCullough
patent: 2764938 (1956-10-01), Harcus
patent: 2980017 (1961-04-01), Castel
patent: 3175617 (1965-03-01), North
patent: 3346056 (1967-10-01), Bohn
patent: 3589453 (1971-06-01), Venghiattis
patent: 3666030 (1972-05-01), Bohn et al.
patent: 3773119 (1973-11-01), Shore
patent: 4194577 (1980-03-01), Vann
patent: 4312273 (1982-01-01), Camp
patent: 4326462 (1982-04-01), Garcia et al.
patent: 4467878 (1984-08-01), Ibsen
patent: 4541487 (1985-09-01), Revett
patent: 4583602 (1986-04-01), Ayers
patent: 4635734 (1987-01-01), Donovan et al.
Oestreich Michael L.
Pollard Norman S.
Dang Hoang C.
Duzan James R.
Duzan James R.
Novosad Stephen J.
LandOfFree
Well perforating apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Well perforating apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Well perforating apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-598643