Ammunition and explosives – Blasting – Borehole loading
Patent
1995-01-27
1995-12-26
Nelson, Peter A.
Ammunition and explosives
Blasting
Borehole loading
175 451, 175433, F42B 300, E21B 1714
Patent
active
054777852
ABSTRACT:
A well pipe perforating gun (10) is improved by the utilization of a pulverable support structure (14) to hold the explosive shaped charges (18a, 18b, etc.) and the fireset (20). When the gun (10) is fired, the support structure (14) disintegrates substantially into fragments too small to obstruct the flow of oil or natural gas from a surrounding earth formation into or through the well pipe (12) within which the gun is disposed. Optionally, the support structure (14) is assembled from a number of segments (14a, 14b, etc.) linked together in sequential fashion.
REFERENCES:
patent: 2761384 (1956-09-01), Sweetman
patent: 3797576 (1974-03-01), Azalbert et al.
patent: 5031540 (1991-07-01), Kenny
patent: 5105742 (1992-04-01), Sumner
Boucher Craig J.
Dieman, Jr. Charles A.
Fritz James E.
Renfro Steven L.
Riley Scot P.
Libert Victor E.
Nelson Peter A.
Spaeth Frederick A.
The Ensign-Bickford Company
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